CN111713239A

CN111713239A - Environment-friendly deep-application irrigation method for organic fertilizer

Info

Publication number: CN111713239A
Application number: CN202010549718.1A
Authority: CN
Inventors: 彭涛; 刘培勇; 林恒; 侯冉; 张金晌
Original assignee: Jiangsu Huayuan Water Saving Co ltd
Current assignee: Jiangsu Huayuan Water Saving Co ltd; Jiangsu Huayuan Irrigation and Drainage Co Ltd
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2020-09-29
Anticipated expiration: 2039-03-01
Also published as: CN111713239B; CN109673236B; CN109673236A; CN111713238A; CN111713238B

Abstract

The invention discloses an organic fertilizer environment-friendly deep-application irrigation method.A used organic fertilizer environment-friendly deep-application irrigation intelligent system comprises an organic fertilizer liquid preparation unit, an organic fertilizer liquid conveying unit, an organic fertilizer liquid applying unit and a centralized electric control unit; the organic fertilizer liquid preparation unit comprises a first underframe, a traveling device, a mixing and stirring box and an organic fertilizer liquid processing electric control device; the organic fertilizer liquid conveying unit comprises an organic fertilizer conveying pipeline; the organic fertilizer liquid applying unit comprises a reel type PE pipe supply device, a deep ploughing and fertilizing device and an organic fertilizer liquid applying electric control device. The invention can realize the deep ploughing fertilization of farmyard manure and the reduction of environmental pollution, reduce the whole volume and weight of the fertilization equipment, reduce the rolling of farmlands, realize the one-time intelligent fertilization operation of long distance and large area, further realize the high-efficiency organic fertilizer application, and is particularly suitable for the application of organic fertilizer to large farmlands near the farm.

Description

Environment-friendly deep-application irrigation method for organic fertilizer

Technical Field

The invention relates to a use method of an agricultural intelligent system, in particular to an organic fertilizer environment-friendly deep-application irrigation method suitable for applying an organic fertilizer to a farmland, and belongs to the technical field of intelligent agriculture.

Background

Chemical fertilizer (chemical fertilizer for short), also called inorganic fertilizer, is a fertilizer containing one or several nutrient elements required for crop growth and made up by using chemical and/or physical method, and features simple components, high nutrient content, quick effect and strong fertility. The chemical fertilizer applied in China mainly comprises nitrogenous fertilizer, but phosphate fertilizer, potash fertilizer and compound fertilizer are less, and long-term application can cause soil nutrient imbalance and accelerate soil acidification. The application of the organic fertilizer can improve the soil structure, improve the absorption capacity of the soil and increase the adsorption capacity of soil colloid on toxic substances such as heavy metals and the like. Therefore, at present, China advocates applying organic fertilizers to farmlands.

The organic fertilizer is mainly derived from plants and/or animals, is a carbon-containing material which is applied to soil to provide plant nutrition as a main function, contains comprehensive nutrient substances, not only contains nitrogen, phosphorus and potassium, but also contains calcium, magnesium, sulfur, iron and a plurality of trace elements, can provide comprehensive nutrition for crops, has long fertilizer efficiency, can increase and update soil organic matters, promotes the propagation of microorganisms, improves the physicochemical property and the biological activity of the soil, and is a main nutrient for green food production. However, most of the nutrient elements of the organic fertilizer are organic substances, and are difficult to be directly absorbed and utilized by crops, and nutrients are gradually released through the chemical and physical action in soil and the fermentation and decomposition of microorganisms.

Farmyard manure (also called green manure) is mostly organic fertilizer, which has various types, wide sources, large quantity, convenient local material taking and local use and lower cost, but the farmyard manure has the defects of bad smell, unsightly appearance and nausea, in addition, since farmyard manure is mostly massive excrement of cattle, pigs, chickens and ducks and the like, and has different shapes, sizes, hardness, viscosity and the like, the fertilizer applicator of chemical fertilizer cannot be used for fertilizing, therefore, the traditional farmyard manure applying mode is to transport the farmyard manure to the field and spray the farmyard manure on the surface of the soil by manpower after crushing, the manual fertilizing mode has the advantages of high labor intensity, low efficiency and uneven fertilizing, and farmyard manure exposed outside the soil can cause air pollution on one hand, and can cause low fertilizer efficiency and even generate certain side effect on the growth of crops on the other hand, and the manual soil covering process is usually needed.

Aiming at the problems, in the prior art, mechanical equipment such as equipment for applying farmyard manure and chemical fertilizer in a combined manner is available, and the farmyard manure is still in a small granular shape after being crushed, so that the equipment mostly conveys the crushed and stirred farmyard manure by arranging a screw conveyor in a fertilizer bin and sprays the farmyard manure through uniformly distributed discharge ports, even though an automatic soil covering structure is arranged and automatic soil covering can be realized, the equipment is usually only applied to a shallow soil layer and cannot be applied to deep soil, the nutrient decomposition efficiency of the soil is limited, and the seedling burning phenomenon is easily caused in a sowing stage; in addition, the fertilizer bin provided with the screw conveyor is often large in size and weight of the whole fertilizer application equipment, so that the fertilizer application power consumption is high in the fertilizer application process, excessive rolling is caused to farmlands, and crop seeding and planting are not facilitated; meanwhile, the fertilizer bin has limited capacity, so that the fertilizer application area is limited, the fertilizer needs to be supplemented in time, and the one-time fertilizer application operation of long distance and large area cannot be realized.

Disclosure of Invention

In order to solve the problems, the invention provides an environment-friendly deep application and irrigation method for organic fertilizers, which can reduce the whole volume and weight of fertilization equipment and reduce the rolling of farmlands on the premise of realizing deep ploughing and fertilization of farmyard manure and reducing environmental pollution, can realize long-distance and large-area one-time intelligent fertilization operation, can further realize efficient application of organic fertilizers, and is particularly suitable for application of organic fertilizers to large farmlands near farms.

In order to realize the aim, the intelligent system for environment-friendly deep application and irrigation of the organic fertilizer comprises an organic fertilizer liquid preparation unit, an organic fertilizer liquid conveying unit, an organic fertilizer liquid applying unit and a centralized electric control unit;

the organic fertilizer liquid preparation unit comprises a first underframe, a traveling device, a mixing and stirring box and an organic fertilizer liquid processing electric control device;

the front end and/or the rear end of the first underframe is/are provided with a traction mechanism;

the travelling device comprising wheels is arranged below the first underframe;

the mixing and stirring box is fixedly arranged on the first underframe and is of a closed box structure or a tank structure, and a raw fertilizer input part, a raw fertilizer crushing part, a diluent pump input part, a mixing and stirring part and a mixed organic fertilizer pump output part are arranged on the mixing and stirring box; the raw fertilizer input part comprises a raw fertilizer conveyor and a raw fertilizer pumping pipeline, the raw fertilizer conveyor comprises a raw fertilizer conveyor driving mechanism, and the input end of the raw fertilizer conveyor is communicated and connected with the raw fertilizer pumping pipeline; the raw fertilizer crushing part comprises a closed raw fertilizer crushing chamber and a raw fertilizer crushing device arranged in the raw fertilizer crushing chamber, the input end of the raw fertilizer crushing chamber is connected with the output end of a raw fertilizer conveyor, the output end of the raw fertilizer crushing chamber is communicated and connected with the inner cavity of the mixing and stirring box, and the raw fertilizer crushing device comprises a raw fertilizer crushing mechanism and a raw fertilizer crushing driving mechanism; the diluent pumping part comprises a diluent delivery pump and a diluent delivery pipeline, the diluent delivery pump comprises a diluent delivery driving mechanism, the input end of the diluent delivery pump is communicated and connected with the output end of the diluent delivery pipeline, the output end of the diluent delivery pump is communicated and connected with the input end of the raw fertilizer crushing chamber, the input end of the diluent delivery pipeline is communicated and connected with a diluent supply source, a diluent delivery flow electromagnetic control valve is further arranged on the diluent delivery pipeline, and the diluent is a fertilizer solution; the mixing and stirring part comprises a stirring rod and a stirring rod driving mechanism, the stirring rod is erected and installed in an inner cavity of the mixing and stirring box, and the stirring rod is provided with stirring blades fixedly connected with the stirring rod; the output part of the mixed organic fertilizer liquid pump comprises a mixed organic fertilizer liquid delivery pump, the mixed organic fertilizer liquid delivery pump comprises a mixed organic fertilizer liquid delivery pump driving mechanism, the input end of the mixed organic fertilizer liquid delivery pump is communicated and connected with the inner cavity of the mixing and stirring box, and the output end of the mixed organic fertilizer liquid delivery pump is also provided with a mixed organic fertilizer liquid delivery flow electromagnetic control valve; an electronic liquid level meter is also arranged on the mixing and stirring box; the total power source of the mixing box is an engine which is independently arranged or a transmission part driven by a power output shaft of a traction vehicle gearbox;

the organic fertilizer liquid processing electric control device is arranged on the first underframe and comprises an organic fertilizer liquid processing controller, a raw fertilizer pump-in control loop, a raw fertilizer crushing control loop, a diluent pump-in control loop, a mixing and stirring control loop and a mixed liquid pump-out control loop, wherein the organic fertilizer liquid processing controller is electrically connected with a raw fertilizer conveyor driving mechanism, a raw fertilizer crushing driving mechanism, a diluent conveying flow electromagnetic control valve, a stirring rod driving mechanism, a mixed organic fertilizer liquid conveying pump driving mechanism, a mixed organic fertilizer liquid conveying flow electromagnetic control valve and an electronic liquid level meter respectively;

the organic fertilizer liquid conveying unit comprises an organic fertilizer conveying pipeline, and one end of the organic fertilizer conveying pipeline is connected with a mixed organic fertilizer liquid conveying flow electromagnetic control valve at the part of the mixed organic fertilizer liquid pump;

the organic fertilizer liquid applying unit comprises a reel type PE pipe supply device, a deep ploughing and fertilizing device and an organic fertilizer liquid applying electric control device;

the reel type PE pipe supply device comprises a second underframe, a travelling mechanism, a reel driving mechanism, a reel rewinding guide limiting mechanism and a fertilizing PE pipe; an auxiliary frame is arranged on the second underframe and is connected with the second underframe through a slewing bearing and an auxiliary frame positioning component; a travelling mechanism comprising wheels is arranged below the second underframe; the reel is erected and installed on the auxiliary frame of the second underframe through the support frame; the fertilizing PE pipe is wound on the reel, and the input end of the fertilizing PE pipe is connected with the other end of the organic fertilizer conveying pipeline of the organic fertilizer liquid conveying unit; the reel driving mechanism comprises a reel driving gearbox and a power source, the input end of the reel driving gearbox is connected with the output end of the power source, and the output end of the reel driving gearbox is connected with the reel through a transmission mechanism; the reel backrush guiding and limiting mechanism is arranged in front of the reel;

the deep ploughing and fertilizing device comprises a vehicle body, lifting wheels, a deep ploughing and fertilizing machine tool, a hydraulic control mechanism, an organic fertilizer liquid distribution mechanism and an earthing mechanism; the front end of the vehicle body is provided with a quick connecting mechanism; the lifting wheels are arranged at the bottom of the vehicle body in a lifting way through wheel lifting hydraulic cylinders; the deep ploughing fertilizer applicator is provided with a plurality of deep ploughing fertilizer applicators, the plurality of deep ploughing fertilizer applicators are uniformly distributed on the vehicle body in a row in the left-right direction, the top end of each deep ploughing fertilizer applicator is installed on the vehicle body, the bottom end of each deep ploughing fertilizer applicator is provided with a deep ploughing tooth which extends forwards, the rear part of the bottom end of each deep ploughing tooth is provided with a fertilizer spraying pipe fixedly installed and connected with the deep ploughing tooth, the bottom end of each fertilizer spraying pipe is provided with a fertilizer spraying nozzle, and each deep ploughing fertilizer; the hydraulic control mechanism is fixedly arranged at the front part of the vehicle body and comprises a hydraulic pump, a control valve group and a hydraulic oil tank, wherein the control valve group is respectively connected with the hydraulic pump, the wheel lifting hydraulic cylinder and the machine lifting hydraulic cylinder through hydraulic pipelines; the organic fertilizer liquid distribution mechanism is fixedly arranged on the vehicle body and comprises at least one organic fertilizer liquid inlet and a plurality of organic fertilizer liquid outlets, the organic fertilizer liquid inlet is communicated and connected with the output end of the fertilizing PE pipe, and the organic fertilizer liquid outlets are respectively communicated and connected with the top end of a fertilizing spray pipe of the deep ploughing and fertilizing machine tool through hoses; the soil covering mechanism is arranged at the rear end of the vehicle body or the rear end of the deep ploughing fertilizer applicator and is positioned behind a fertilizer spraying pipe of the deep ploughing fertilizer applicator;

the organic fertilizer liquid applying electric control device is arranged on the second underframe or the vehicle body and comprises an organic fertilizer liquid applying controller, a PE pipe supply device control loop and a deep ploughing fertilizing device control loop, wherein the organic fertilizer liquid applying controller is respectively and electrically connected with a power source of the reel driving mechanism and a control valve group of the hydraulic control mechanism;

the centralized electric control unit comprises a central controller, a display, an organic fertilizer liquid processing control loop and an organic fertilizer liquid applying control loop, wherein the central controller is respectively electrically connected with the display, the organic fertilizer liquid processing controller of the organic fertilizer liquid preparation unit and the organic fertilizer liquid applying controller of the organic fertilizer liquid applying unit, and the central controller also comprises a fertilizer application data input/output port;

the using method specifically comprises the following steps:

a. and (3) equipment connection and installation: the organic fertilizer liquid preparation unit and the organic fertilizer liquid application unit are dragged to the field by a traction vehicle, a raw fertilizer pump-in pipeline of a raw fertilizer input part is connected with a farmyard manure supply source, two ends of an organic fertilizer conveying pipeline of the organic fertilizer liquid conveying unit are respectively connected with a mixed organic fertilizer liquid conveying flow electromagnetic control valve of a mixed organic fertilizer liquid pump-out part and an input end of a fertilizing PE pipe, an input end of a diluent conveying pipeline is connected with a diluent supply source, and a system is started;

b. preparing mixed organic fertilizer liquid: an operator inputs farmyard manure data information of a farmyard manure supply source and farmlands to a central controller through a fertilization data input/output port, the central controller calculates and stores required raw manure amount and diluent amount according to the volume of a mixing and stirring box and a built-in organic manure liquid preparation program, then the central controller controls an organic manure liquid processing control loop to start working according to the calculation result, a total power source of the mixing and stirring box provides power for a raw manure conveyor driving mechanism, a raw manure crushing driving mechanism, a diluent conveying driving mechanism, a stirring rod driving mechanism and a mixed organic manure liquid conveying pump driving mechanism, the organic manure liquid processing controller controls the raw manure conveyor driving mechanism, the raw manure crushing driving mechanism, the diluent conveying driving mechanism and the stirring rod driving mechanism to start working simultaneously, and raw manure output from the farmyard manure supply source enters a raw manure crushing part to be crushed under the driving of a raw manure input part, meanwhile, chemical fertilizer solution is sprayed into the raw fertilizer crushing part under the driving of the diluent pumping part, the crushed raw fertilizer mixed with diluent enters the mixing and stirring box for stirring, when the input raw fertilizer amount reaches a set value, the organic fertilizer solution processing controller controls the raw fertilizer conveyor driving mechanism and the raw fertilizer crushing driving mechanism to stop working, when the input chemical fertilizer solution amount reaches the set value, the organic fertilizer solution processing controller controls the diluent conveyor driving mechanism to stop working, the organic fertilizer solution processing controller controls the stirring rod driving mechanism to continuously work, and the raw fertilizer and the chemical fertilizer solution form uniform mixed organic fertilizer solution under the stirring action of the mixing and stirring part;

when the organic fertilizer liquid processing control circuit starts to work, the central controller sends an instruction to control the organic fertilizer liquid application control circuit to start to work, after the auxiliary frame of the second chassis frame is rotated to enable the deep ploughing fertilizer device to face a farmland to be fertilized, the organic fertilizer liquid application controller controls the reel driving mechanism to act to enable the reel to rotate reversely, and the deep ploughing fertilizer device accommodated on the auxiliary frame of the second chassis frame falls to the ground under the guiding effect of the reel rewinding guiding limiting mechanism; then, an operator connects the quick connecting mechanism at the front end of the vehicle body with a connecting frame at the rear end of the traction vehicle, connects the power input end of a hydraulic pump of the hydraulic control mechanism with the output shaft of a gearbox of the traction vehicle through a universal coupling, and the traction vehicle is in a standby state;

c. deep ploughing and fertilizing: when the organic fertilizer liquid processing controller feeds back that the mixed organic fertilizer liquid is uniformly prepared, the central controller sends a signal to an operator, the operator starts the traction locomotive, a gearbox of the traction locomotive drives a hydraulic pump of a hydraulic control mechanism to start working, then the central controller sends an instruction to enable the organic fertilizer liquid processing controller to control a pumping-out part of the mixed organic fertilizer liquid to start working, a mixed organic fertilizer liquid conveying pump starts working when a mixed organic fertilizer liquid conveying flow electromagnetic control valve is opened, the mixed organic fertilizer liquid sequentially enters an organic fertilizer liquid distribution mechanism through an organic fertilizer conveying pipeline and a fertilizing PE pipe of an organic fertilizer liquid conveying unit, then enters each fertilizing spray pipe of the deep ploughing fertilizing machine through an organic fertilizer liquid outlet of the organic fertilizer liquid distribution mechanism, and finally is sprayed out through a fertilizing spray nozzle; when the pump-out part of the mixed organic fertilizer liquid starts to work, the traction locomotive drives the deep ploughing fertilizer device to move forwards, the organic fertilizer liquid application controller controls the reel driving mechanism to act so that the reel rotates reversely to release the PE pipe for fertilizing, the reel driving mechanism stops working until the PE pipe for fertilizing is completely released, in the process of moving forwards of the deep ploughing fertilizer device, the organic fertilizer liquid application controller controls the control valve set of the hydraulic control mechanism to enable the wheel lifting hydraulic cylinder to retract and the implement lifting hydraulic cylinder to extend out, the lifting wheels lift to enable the vehicle body to be close to the ground, meanwhile, the deep ploughing teeth of the deep ploughing fertilizer implement are arranged below the ground surface of a farmland, the mixed organic fertilizer liquid sprayed out through the fertilizer spraying nozzle is sprayed below the ground surface of the farmland, and in the process of moving forwards of the deep ploughing fertilizer device, the soil covering mechanism positioned behind the fertilizer spraying pipe of the deep plough;

in the deep ploughing and fertilizing process, when the liquid level of the mixed organic fertilizer liquid fed back by an electronic liquid level meter of the mixing and stirring box is lower than a set liquid level, the organic fertilizer liquid processing controller repeats the step of preparing the mixed organic fertilizer liquid;

d. equipment dismantling and transition: after the deep ploughing fertilization is finished, an operator sends a signal to a central controller, the central controller firstly controls and controls an organic fertilizer liquid processing control loop to start working and stop working, an electromagnetic control valve for conveying the mixed organic fertilizer liquid is closed, a mixed organic fertilizer liquid conveying pump stops working at the same time, then the central controller sends an instruction to an organic fertilizer liquid application controller, the organic fertilizer liquid application controller controls a control valve group of a hydraulic control mechanism to enable a wheel lifting hydraulic cylinder to extend out and a machine lifting hydraulic cylinder to retract into an initial state, after the operator removes the deep ploughing fertilization device and a traction locomotive, the organic fertilizer liquid application controller controls a reel driving mechanism to move to enable the reel to rotate forward to recover the fertilization PE pipe, the deep ploughing fertilization device is driven to retreat and recover in the process of recovering the fertilization PE pipe, and after the deep ploughing fertilization device is moved back to a retreat guiding limiting mechanism, the organic fertilizer liquid application controller closes a power source of the reel driving mechanism, connecting the traction vehicle with the rear end of the second underframe and then performing transition operation; when the deep ploughing and fertilizing device retreats, the original fertilizer pump-in pipeline of the original fertilizer input part, the organic fertilizer conveying pipeline of the organic fertilizer liquid conveying unit and the diluent conveying pipeline are removed, and then the tractor is connected with the underframe to carry out transition operation.

As a further improvement scheme of the invention, a flow sensor or a pressure sensor is arranged in an organic fertilizer liquid distribution mechanism of the intelligent system for environment-friendly deep-application irrigation of the organic fertilizer, a backwashing exhaust port with a backwashing exhaust electromagnetic stop valve is also arranged on the organic fertilizer liquid distribution mechanism, the backwashing exhaust electromagnetic stop valve, the flow sensor or the pressure sensor are electrically connected with an organic fertilizer liquid application controller, and the centralized electric control unit also comprises a backwashing control loop; the intelligent system for the environment-friendly deep irrigation of the organic fertilizer is also provided with a backwashing device, the backwashing device comprises a backwashing water tank, a backwashing pump and a backwashing spray gun, the backwashing water tank with backwashing water is arranged on the traction locomotive or the deep ploughing fertilizer device, the backwashing pump with a backwashing pump driving mechanism is arranged on the backwashing water tank, the input end of the backwashing pump is communicated and connected with the backwashing water tank, the output end of the back washing spray gun is connected with the input end of the back washing spray gun through a back washing overflow valve and a hose, a back washing input electromagnetic stop valve is also arranged on the input end of the back washing overflow valve or the back washing spray gun, the back washing input electromagnetic stop valve is electrically connected with an organic fertilizer liquid application controller, the back washing spray gun is arranged on an organic fertilizer liquid distribution mechanism, a nozzle of the back washing spray gun is communicated and connected with an inner cavity of the organic fertilizer liquid distribution mechanism, and the injection direction of the nozzle of the back washing spray gun is opposite to the flowing direction;

the back washing pump works all the time in the deep ploughing and fertilizing process, the back washing exhaust electromagnetic stop valve and the back washing input electromagnetic stop valve are in a stop state, the back washing water pumped by the back washing pump flows back to a back washing water tank through a back washing overflow valve, when the flow value fed back by a flow sensor is lower than a set value or the pressure value fed back by a pressure sensor is greater than the set value, a central controller controls a back washing control loop to start working, the central controller firstly sends out an instruction to enable an organic fertilizer liquid processing controller to control the part pumped out by the mixed organic fertilizer liquid to pause working, then the central controller sends out an instruction to enable an organic fertilizer liquid application controller to control the back washing exhaust electromagnetic stop valve and the back washing input electromagnetic stop valve to be opened simultaneously, the mixed organic fertilizer liquid in the organic fertilizer liquid distribution mechanism rapidly flows into the ground surface of a farmland from a fertilizing nozzle, back washing water pumped by a back washing pump is sprayed out through a nozzle of a back washing spray gun to back wash an inner cavity of an organic fertilizer liquid distribution mechanism, mixed organic fertilizer liquid generated by back washing flows below the surface of the farmland through a fertilizing nozzle of a deep ploughing and fertilizing machine, after a set time, a central controller sends an instruction to enable an organic fertilizer liquid processing controller to control a part pumped out of the mixed organic fertilizer liquid to restart, and meanwhile, the central controller sends an instruction to enable an organic fertilizer liquid applying controller to control a back washing exhaust electromagnetic stop valve and a back washing input electromagnetic stop valve to be closed at the same time, so that a back washing process is completed.

As an implementation mode of the back washing pump driving mechanism, the back washing pump driving mechanism is a transmission shaft structure connected with a power output shaft of a traction locomotive, and the traction locomotive is adopted to provide power for the back washing pump.

As a further improvement scheme of the invention, the upper part of the vehicle body of the intelligent system for environmental-friendly and deep application and irrigation of the organic fertilizer is also hinged and erected with a vehicle body pitching hydraulic cylinder, the vehicle body pitching hydraulic cylinder is connected with a control valve group of a hydraulic control mechanism through a hydraulic pipeline, and a quick connecting mechanism at the front end of the vehicle body is of a hinged seat structure; in the deep ploughing and fertilizing process, the central controller controls the pitching angle of the vehicle body through controlling the telescopic control of the vehicle body pitching hydraulic cylinder, and the auxiliary control is carried out on the operating depth of the deep ploughing and fertilizing.

As an implementation mode of the invention, aiming at farmlands far away from a farm, raw fertilizers are transported by a raw fertilizer transport tank truck, a raw fertilizer pumping pipeline of a raw fertilizer input part is directly connected with a discharge port of the raw fertilizer transport tank truck, and an organic fertilizer transport pipeline of an organic fertilizer liquid transport unit adopts a hose structure suitable for short-distance transport.

As an embodiment of the invention, aiming at a farmland near a farm, a raw fertilizer pumping pipeline of a raw fertilizer input part is directly connected with a discharge port of a farmyard manure centralized fermentation treatment tank, an organic fertilizer conveying pipeline of an organic fertilizer liquid conveying unit is preset around the farmland, and a plurality of openable and closable valves are arranged at different distance positions on the organic fertilizer conveying pipeline.

In one embodiment of the present invention, the organic fertilizer solution application unit is hung behind the organic fertilizer solution preparation unit and is towed and transferred by the same towing vehicle.

In a further improvement of the present invention, the central controller is electrically connected to the organic fertilizer solution processing controller of the organic fertilizer solution preparation unit and the organic fertilizer solution application controller of the organic fertilizer solution application unit by wireless connection.

Compared with the prior art, the intelligent system for the environmental-friendly deep-fertilizing irrigation of the organic fertilizer is a digital intelligent system with good flexibility, and due to the fact that the independently arranged organic fertilizer liquid preparation unit is arranged, after farmyard manure data and fertilization data are received through the fertilization data input and output port, automatic preparation of mixed organic fertilizer liquid can be conducted through the organic fertilizer liquid preparation unit, and the organic fertilizer liquid preparation unit does not enter a farmland to conduct fertilization along with the deep-ploughing fertilization device, so that the whole volume and the weight of the deep-ploughing fertilization device can be greatly reduced, and rolling on the farmland is reduced; the organic fertilizer liquid applying unit comprises a reel type PE pipe supplying device, and the fertilizing PE pipe is wound on the reel, so that long-distance and large-area one-time intelligent fertilizing operation can be realized, and the reel type PE pipe supplying device does not enter a farmland to fertilize along with the deep ploughing fertilizing device, so that the whole volume and weight of the deep ploughing fertilizing device can be further reduced, and the rolling of the farmland is reduced; the deep ploughing and fertilizing device can be used for carrying out traction fertilization by a traction locomotive such as a tractor, and the deep ploughing power of the deep ploughing and fertilizing device is derived from the traction locomotive, so that the whole volume and weight of the deep ploughing and fertilizing device can be further reduced, and the rolling of a farmland can be reduced; owing to be equipped with back flush unit, consequently can prevent that organic fertilizer liquid distribution mechanism from leading to the fact because of the jam that deposits, guarantee the long-time even fertilization of deep-ploughing fertilizer injection unit, the mixed agitator tank of totally enclosed structure and the fertilization mode of deep-ploughing fertilization earthing can reduce the pollution degree of farmyard manure to the air on the prerequisite that realizes high-efficient applying the machine fertilizer, and specially adapted carries out the application of fertilizer to being located near plant's large farmland.

Drawings

FIG. 1 is a schematic top view of an intelligent system for environmental-friendly deep-fertilizing and irrigating organic fertilizer for deep-ploughing and fertilizing agricultural fields near a farm;

FIG. 2 is a schematic structural diagram of an organic fertilizer liquid preparation unit of the intelligent system for environmentally-friendly deep application and irrigation of organic fertilizers;

FIG. 3 is a schematic diagram of the overall structure of an organic fertilizer liquid applying unit of the intelligent deep ploughing and fertilizing device of the environment-friendly deep fertilizing and irrigating system for organic fertilizer in the recycling state of a fertilizing PE pipe;

FIG. 4 is a schematic structural diagram of the intelligent organic fertilizer environment-friendly deep-watering system deep-ploughing fertilizer device when the wheels of the vehicle support the vehicle body;

FIG. 5 is a schematic structural diagram of the deep ploughing and fertilizing device of the intelligent system for environmentally-friendly deep irrigation and organic fertilizer when the tractor is used for traction and deep ploughing operation;

FIG. 6 is a schematic structural diagram of the intelligent deep ploughing and fertilizing device of the organic fertilizer environment-friendly deep irrigation system in the working state;

FIG. 7 is a top view of FIG. 6;

fig. 8 is a structural schematic diagram of an organic fertilizer liquid distribution mechanism of an intelligent organic fertilizer environment-friendly deep irrigation system.

In the figure: 1. the device comprises an organic fertilizer liquid preparation unit 11, a first base frame 12, a traveling device 13, a mixing and stirring box 14, a raw fertilizer input part 15, a raw fertilizer crushing part 16, a diluent pumping part 17, a mixing and stirring part 18, a mixed organic fertilizer liquid pumping part 2, an organic fertilizer liquid conveying unit 3, an organic fertilizer liquid applying unit 31, a reel type PE pipe supply device 311, a second base frame 312, a traveling mechanism 313, a reel 314, a reel driving mechanism 315, a rewinding guide limiting mechanism 32, a deep ploughing and fertilizing device 321, a vehicle body 322, a lifting wheel 323, a deep ploughing and fertilizing machine 324, a hydraulic control mechanism 325, an organic fertilizer liquid distributing mechanism 326, a soil covering mechanism 4 and a farmyard fertilizer centralized fermentation treatment pool.

Detailed Description

The present invention will be further explained with reference to the drawings (hereinafter, the direction in which the deep-ploughing fertilizer applicator 32 pulls out the fertilizer PE pipe will be described as the front).

As shown in figure 1, the intelligent system for environmentally-friendly deep organic fertilizer application and irrigation comprises an organic fertilizer liquid preparation unit 1, an organic fertilizer liquid conveying unit 2, an organic fertilizer liquid application unit 3 and a centralized electric control unit.

As shown in fig. 2, the organic fertilizer solution preparation unit 1 comprises a first base frame 11, a traveling device 12, a mixing and stirring tank 13 and an organic fertilizer solution processing electric control device;

the front end and/or the rear end of the first underframe 11 are/is provided with a traction mechanism, and the first underframe 11 is also provided with a positioning and supporting device;

a traveling device 12 comprising wheels is arranged below the first underframe 11; the mixing and stirring box 13 is fixedly arranged on the first underframe 11;

the mixing and stirring box 13 is a closed box structure or a tank structure, and the mixing and stirring box 13 is provided with a raw fertilizer input part 14, a raw fertilizer crushing part 15, a diluent pump input part 16, a mixing and stirring part 17 and a mixed organic fertilizer pump output part 18; the raw fertilizer input part 14 comprises a raw fertilizer conveyor and a raw fertilizer pumping pipeline, the raw fertilizer conveyor comprises a raw fertilizer conveyor driving mechanism, the input end of the raw fertilizer conveyor is communicated and connected with the raw fertilizer pumping pipeline, and the raw fertilizer conveyor can be of a spiral conveyor structure or a pump structure; the raw fertilizer crushing part 15 comprises a closed raw fertilizer crushing chamber and a raw fertilizer crushing device arranged in the raw fertilizer crushing chamber, wherein the input end of the raw fertilizer crushing chamber is connected with the output end of a raw fertilizer conveyor, the output end of the raw fertilizer crushing chamber is communicated and connected with the inner cavity of the mixing and stirring box 13, the raw fertilizer crushing device comprises a raw fertilizer crushing mechanism and a raw fertilizer crushing driving mechanism, and the raw fertilizer crushing mechanism can be a blade type crushing structure comprising a plurality of crushing blades or a hammer type crushing structure comprising a plurality of hammer sheets; the diluent pumping part 16 comprises a diluent delivery pump and a diluent delivery pipeline, the diluent delivery pump comprises a diluent delivery driving mechanism, the input end of the diluent delivery pump is communicated and connected with the output end of the diluent delivery pipeline, the output end of the diluent delivery pump is communicated and connected with the input end of the raw fertilizer crushing chamber, the diluent delivery pump can be a fixed displacement pump or a variable displacement pump, the input end of the diluent delivery pipeline is communicated and connected with a diluent supply source, the diluent delivery pipeline is also provided with a diluent delivery flow electromagnetic control valve, and the diluent can be directly water or diluted chemical fertilizer solution; the mixing and stirring part 17 comprises a stirring rod and a stirring rod driving mechanism, the stirring rod is erected and installed in the inner cavity of the mixing and stirring box 13, and the stirring rod is provided with a stirring blade fixedly connected with the stirring rod; the mixed organic fertilizer liquid pumping-out part 18 comprises a mixed organic fertilizer liquid delivery pump, the mixed organic fertilizer liquid delivery pump comprises a mixed organic fertilizer liquid delivery pump driving mechanism, the input end of the mixed organic fertilizer liquid delivery pump is communicated and connected with the inner cavity of the mixing and stirring box 13, and the output end of the mixed organic fertilizer liquid delivery pump is also provided with a mixed organic fertilizer liquid delivery flow electromagnetic control valve; an electronic liquid level meter is also arranged on the mixing and stirring box 13; the raw fertilizer conveyor driving mechanism, the raw fertilizer crushing driving mechanism, the diluent conveying driving mechanism, the stirring rod driving mechanism and the mixed organic fertilizer liquid conveying pump driving mechanism can provide power through a total power source of the mixing and stirring tank, and the total power source of the mixing and stirring tank can be an independently arranged engine or a transmission part driven by a power output shaft of a traction vehicle gearbox;

the organic fertilizer liquid processing electric control device is arranged on the first underframe 11 and comprises an organic fertilizer liquid processing controller, a raw fertilizer pump-in control loop, a raw fertilizer crushing control loop, a diluent pump-in control loop, a mixing and stirring control loop and a mixed liquid pump-out control loop, wherein the organic fertilizer liquid processing controller is electrically connected with a raw fertilizer conveyor driving mechanism, a raw fertilizer crushing driving mechanism, a diluent conveying flow electromagnetic control valve, a stirring rod driving mechanism, a mixed organic fertilizer liquid conveying pump driving mechanism, a mixed organic fertilizer liquid conveying flow electromagnetic control valve and an electronic liquid level meter respectively.

The organic fertilizer liquid conveying unit 2 comprises an organic fertilizer conveying pipeline, and one end of the organic fertilizer conveying pipeline is connected with a mixed organic fertilizer liquid conveying flow electromagnetic control valve of the mixed organic fertilizer liquid pump-out part 18.

As shown in fig. 3, the organic fertilizer liquid applying unit 3 comprises a reel type PE pipe supply device 31, a deep ploughing fertilizer device 32 and an organic fertilizer liquid applying electric control device;

the reel type PE pipe supply device 31 comprises a second underframe 311, a travelling mechanism 312, a reel 313, a reel driving mechanism 314, a reel rewinding guiding and limiting mechanism 315 and a fertilizing PE pipe; an auxiliary frame is arranged on the second underframe 311 and is connected with the second underframe 311 through a slewing bearing and an auxiliary frame positioning component; a travelling mechanism 312 comprising wheels is arranged below the second underframe 311; the reel 313 is erected on an auxiliary frame of the second underframe 311 through a support frame; the fertilizing PE pipe is wound on the reel 313, and the input end of the fertilizing PE pipe is connected with the other end of the organic fertilizer conveying pipeline of the organic fertilizer liquid conveying unit 2; the reel driving mechanism 314 comprises a reel driving gearbox and a power source, the input end of the reel driving gearbox is connected with the output end of the power source, the power source can adopt an engine or a motor, the output end of the reel driving gearbox is provided with a clutch control mechanism, the output end of the reel driving gearbox is connected with the reel 313 through a transmission mechanism, and the power source can control the reel driving gearbox to drive the reel 313 to rotate so as to realize the recycling of the fertilizing PE pipe; the reel rewinding guide limiting mechanism 315 is arranged in front of the reel 313, and the reel rewinding guide limiting mechanism 315 can wind and guide the fertilization PE pipe in the rewinding process of the reel 313, limit the fertilization PE pipe after the fertilization PE pipe is completely recovered, and control the reel 313 to stop rewinding;

as shown in fig. 4, 6 and 7, the deep ploughing and fertilizing device 32 comprises a vehicle body 321, lifting wheels 322, a deep ploughing and fertilizing implement 323, a hydraulic control mechanism 324, an organic fertilizer liquid distribution mechanism 325 and a soil covering mechanism 326; the front end of the vehicle body 321 is provided with a quick connecting mechanism; the lifting wheels 322 can be arranged at the bottom of the vehicle body 321 in a lifting way through wheel lifting hydraulic cylinders, and the lifting of the lifting wheels 322 can be controlled by controlling the extension and retraction of the wheel lifting hydraulic cylinders; the deep ploughing fertilizer applicators 323 are arranged into a plurality of pieces, the deep ploughing fertilizer applicators 323 are uniformly distributed on the vehicle body 321 in a row in the left-right direction, a spacing adjusting mechanism can be further arranged between every two adjacent deep ploughing fertilizer applicators 323 so as to adjust the deep ploughing spacing, the top end of each deep ploughing fertilizer applicator 323 is arranged on the vehicle body 321, deep ploughing teeth extending forwards are arranged at the bottom end of each deep ploughing fertilizer applicator 323, a fertilizing spray pipe fixedly installed and connected with the bottom end of each deep ploughing tooth is arranged at the rear part of the bottom end of each deep ploughing tooth, a fertilizing nozzle is arranged at the bottom end of each fertilizing spray pipe, a deep ploughing fertilizer applicator lifting hydraulic cylinder is further arranged on each deep ploughing fertilizer applicator 323; the hydraulic control mechanism 324 is fixedly mounted at the front part of the vehicle body 321 and comprises a hydraulic pump, a control valve group and a hydraulic oil tank, wherein the control valve group is respectively connected with the hydraulic pump, the wheel lifting hydraulic cylinder and the machine tool lifting hydraulic cylinder through hydraulic pipelines; the organic fertilizer liquid distribution mechanism 325 is fixedly mounted on the vehicle body 321, as shown in fig. 8, the organic fertilizer liquid distribution mechanism 325 includes at least one organic fertilizer liquid inlet and a plurality of organic fertilizer liquid outlets, the organic fertilizer liquid inlet is connected with the output end of the fertilizing PE pipe, and the organic fertilizer liquid outlets are respectively connected with the top end of the fertilizing nozzle of the deep ploughing and fertilizing implement 323 through hoses; the soil covering mechanism 326 is arranged at the rear end of the vehicle body 321 or the rear end of the deep ploughing fertilizer applicator 323 and is positioned behind the fertilizing spray pipe of the deep ploughing fertilizer applicator 323, and the soil covering mechanism 326 can be of a soil covering guide plate structure or a soil covering roller structure;

the organic fertilizer liquid applying electric control device is arranged on the second underframe 311 or the vehicle body 321 and comprises an organic fertilizer liquid applying controller, a PE pipe supply device control loop and a deep ploughing fertilizing device control loop, wherein the organic fertilizer liquid applying controller is respectively and electrically connected with a power source of the reel driving mechanism 314 and a control valve group of the hydraulic control mechanism 324.

The centralized electric control unit comprises a central controller, a display, an organic fertilizer liquid processing control loop and an organic fertilizer liquid applying control loop, wherein the central controller is respectively electrically connected with the display, the organic fertilizer liquid processing controller of the organic fertilizer liquid preparation unit 1 and the organic fertilizer liquid applying controller of the organic fertilizer liquid applying unit 3, the central controller further comprises a fertilizer application data input/output port, and the central controller can be respectively electrically connected with the organic fertilizer liquid processing controller of the organic fertilizer liquid preparation unit 1 and the organic fertilizer liquid applying controller of the organic fertilizer liquid applying unit 3 in a wireless electric connection mode.

The intelligent environment-friendly deep-watering system for the organic fertilizer has good maneuvering flexibility, and the organic fertilizer liquid preparation unit 1 can be directly used for traction transition through a traction vehicle in a transition transportation state; the fertilizing PE pipe of the organic fertilizer liquid applying unit 3 is completely wound on the reel 313, the deep ploughing fertilizing device 32 is stored on the reel rewinding guide limiting mechanism 315 on the auxiliary frame of the underframe II 311, in the storage state, the wheel lifting hydraulic cylinder is in the extending state, so that the lifting wheels 322 are in the state of supporting the vehicle body 321, the implement lifting hydraulic cylinder is in the retracting state, so that the deep ploughing fertilizing implement 323 is in the rising state, and the organic fertilizer liquid applying unit 3 can directly perform traction transition through a traction vehicle; the organic fertilizer liquid applying unit 3 may be hung behind the organic fertilizer liquid preparing unit 1 to perform a transition, that is, the organic fertilizer liquid preparing unit 1 and the organic fertilizer liquid applying unit 3 may be towed by the same towing vehicle to perform a transition.

When the organic fertilizer liquid preparation unit 1 and the organic fertilizer liquid application unit 3 are dragged to the field of the non-planted crops for applying the organic fertilizer, the raw fertilizer can be transported by a raw fertilizer transportation tank truck for the farmland far away from the farm, the raw fertilizer pumping pipeline of the raw fertilizer input part 14 can be directly connected with the discharge port of the raw fertilizer transportation tank truck, and the organic fertilizer transportation pipeline of the organic fertilizer liquid transportation unit 2 can adopt a hose structure suitable for short-distance transportation; for the farmland near the farm, as shown in fig. 1, because the farm usually has the farmyard manure centralized fermentation treatment tank 4, the raw manure pumping pipeline of the raw manure input part 14 can be directly connected with the discharge outlet of the farmyard manure centralized fermentation treatment tank 4, the organic fertilizer conveying pipeline of the organic fertilizer liquid conveying unit 2 can be preset around the farmland, and a plurality of openable and closable valves can be arranged at different distance positions on the organic fertilizer conveying pipeline.

Taking a farmland near a farm for organic fertilizer fertilization and taking water as diluent as an example, the organic fertilizer liquid preparation unit 1 is stopped near the farmyard manure centralized fermentation treatment tank 4, the organic fertilizer liquid application unit 3 is stopped at the field, the raw fertilizer pump-in pipeline of the raw fertilizer input part 14 is connected with the discharge port of the farmyard manure centralized fermentation treatment tank 4, two ends of the organic fertilizer conveying pipeline of the organic fertilizer liquid conveying unit 2 are respectively connected with the mixed organic fertilizer liquid conveying flow electromagnetic control valve of the mixed organic fertilizer liquid pump-out part 18 and the input end of the fertilization PE pipe, the input end of the diluent conveying pipeline is connected with a diluent supply source, and the system can be started;

the operator inputs farmyard manure data of the centralized fermentation treatment tank and the required fertilization data of the farmland into the central controller through the fertilization data input and output port, the central controller calculates and stores the required raw manure amount and the diluent amount according to the volume of the mixing and stirring box 13 and the built-in organic manure liquid preparation program, then the central controller controls the organic manure liquid processing control loop to start working according to the calculation result, the organic manure liquid processing controller controls the raw manure conveyor driving mechanism, the raw manure crushing driving mechanism, the diluent conveying driving mechanism and the stirring rod driving mechanism to start working simultaneously, the raw manure discharged from the discharge port of the farmyard manure centralized fermentation treatment tank 4 enters the raw manure crushing part 15 to be crushed under the driving of the raw manure input part 14, meanwhile, the diluent is sprayed into the raw manure crushing part 15 under the driving of the diluent pump input part 16, and the spraying of the diluent can prevent the blockage caused by the adhesion of the raw manure in the raw manure crushing part 15 in the raw manure crushing process, the raw fertilizer crushed and doped with the diluent enters the mixing and stirring box 13 to be stirred, when the input raw fertilizer amount reaches a set value, the organic fertilizer liquid processing controller controls the raw fertilizer conveyor driving mechanism and the raw fertilizer crushing driving mechanism to stop working, when the input diluent amount reaches the set value, the organic fertilizer liquid processing controller controls the diluent conveyor driving mechanism to stop working, the organic fertilizer liquid processing controller controls the stirring rod driving mechanism to continuously work, and the raw fertilizer and the diluent form uniform mixed organic fertilizer liquid under the stirring action of the mixing and stirring part 17;

when the organic fertilizer liquid processing control circuit starts to work, the central controller sends an instruction to control the organic fertilizer liquid application control circuit to start to work, after the auxiliary frame of the second underframe 311 is rotated to enable the deep ploughing fertilizer applicator 32 to be over against a farmland to be fertilized, the organic fertilizer liquid application controller controls the reel driving mechanism 314 to act to enable the reel 313 to rotate reversely, and the deep ploughing fertilizer applicator 32 accommodated on the auxiliary frame of the second underframe 311 falls to the ground under the guiding action of the guiding mechanism; then, an operator connects the quick connecting mechanism at the front end of the tractor body 321 with a connecting frame at the rear end of the tractor, and connects the power input end of the hydraulic pump of the hydraulic control mechanism 324 with the output shaft of the gearbox of the tractor through a universal coupling, and the tractor is in a standby state;

after the set time, when the organic fertilizer liquid processing controller feeds back that the mixed organic fertilizer liquid is uniformly prepared, the central controller sends a signal to an operator, the operator can start the tractor, a gearbox of the tractor drives a hydraulic pump of the hydraulic control mechanism 324 to start working, then the central controller sends an instruction to enable the organic fertilizer liquid processing controller to control the mixed organic fertilizer liquid pumping-out part 18 to start working, a mixed organic fertilizer liquid conveying flow electromagnetic control valve is opened, a mixed organic fertilizer liquid conveying pump starts working, the prepared mixed organic fertilizer liquid sequentially enters the organic fertilizer liquid distribution mechanism 325 through an organic fertilizer conveying pipeline and a fertilizer PE pipe of the organic fertilizer liquid conveying unit 2, then enters each fertilizer spraying pipe of the deep ploughing fertilizer applicator 323 through an organic fertilizer liquid outlet of the organic fertilizer liquid distribution mechanism 325, and finally is sprayed out through the fertilizer spraying nozzles; when the mixed organic fertilizer liquid pumping-out part 18 starts to work, the tractor drives the deep ploughing fertilizer device 32 to move forward, the organic fertilizer liquid application controller controls the reel driving mechanism 314 to act so as to enable the reel 313 to rotate reversely to discharge the fertilizing PE pipe until the fertilizing PE pipe is completely discharged, and then the reel driving mechanism 314 stops working; in the process of moving the deep ploughing and fertilizing device 32 forward, as shown in fig. 5, the organic fertilizer liquid application controller controls the control valve group of the hydraulic control mechanism 324 to enable the wheel lifting hydraulic cylinder to retract and the implement lifting hydraulic cylinder to extend, the lifting wheel 322 rises to enable the vehicle body 321 to be close to the ground, meanwhile, the deep ploughing teeth of the deep ploughing and fertilizing implement 323 are ploughed below the ground surface of the farmland, the mixed organic fertilizer liquid sprayed out through the fertilizing nozzle is directly sprayed below the ground surface of the farmland, and the soil covering mechanism 326 positioned behind the fertilizing nozzle of the deep ploughing and fertilizing implement 323 covers soil at the same time in the process of moving the deep ploughing and fertilizing device 32 forward, namely, a tractor pulls the deep ploughing and fertilizing device 32 to carry out deep ploughing operation on the farmland and simultaneously realizes that the mixed organic fertilizer liquid directly enters below the ground surface of the farmland to carry;

in the deep ploughing and fertilizing process, when the electronic liquid level meter of the mixing and stirring box 13 feeds back that the liquid level of the mixed organic fertilizer liquid is lower than the set liquid level, the organic fertilizer liquid processing controller repeats the step of preparing the mixed organic fertilizer liquid;

after the deep ploughing fertilization is finished, an operator sends a signal to a central controller, the central controller firstly controls and controls an organic fertilizer liquid processing control loop to start working and stop working, an electromagnetic control valve for conveying flow of mixed organic fertilizer liquid is closed, a mixed organic fertilizer liquid conveying pump stops working at the same time, then the central controller sends an instruction to an organic fertilizer liquid applying controller, the organic fertilizer liquid applying controller controls a control valve group of a hydraulic control mechanism 324 to enable a wheel lifting hydraulic cylinder to extend out and a machine lifting hydraulic cylinder to retract into an initial state, after the operator removes the deep ploughing fertilization device 32 and a tractor, the organic fertilizer liquid applying controller controls a reel driving mechanism 314 to act to enable a reel 313 to rotate forward to recover the fertilization PE pipe, the deep ploughing fertilization device 32 is driven to retreat and recover in the process of recovering the fertilization PE pipe, and after the deep ploughing fertilization device 32 retreats to a reel rewinding guide limiting mechanism 315, the organic fertilizer liquid applying controller closes a power source of the reel driving mechanism 314, the traction vehicle is connected with the rear end of the second underframe 311, and then transition operation can be carried out; when the deep ploughing and fertilizing device 32 retracts, the original fertilizer pump-in pipeline of the original fertilizer input part 14, the organic fertilizer conveying pipeline of the organic fertilizer liquid conveying unit 2 and the diluent conveying pipeline are removed, and then the tractor is connected with the first underframe 11 to carry out transition operation.

In the fertilizing process, as the conveying pipeline is longer, and the mixed organic fertilizer liquid conveying pump of the mixed organic fertilizer liquid pumping-out part 18 is far away from the fertilizing spray pipe, in order to prevent the organic fertilizer liquid distribution mechanism 325 from being blocked due to precipitation, as a further improvement scheme of the invention, a flow sensor or a pressure sensor is arranged in the organic fertilizer liquid distribution mechanism 325, a backwashing exhaust port with a backwashing exhaust electromagnetic stop valve is also arranged on the organic fertilizer liquid distribution mechanism 325, the backwashing exhaust electromagnetic stop valve, the flow sensor or the pressure sensor is electrically connected with an organic fertilizer liquid application controller, and the centralized electric control unit further comprises a backwashing control loop; the intelligent system for the environment-friendly deep irrigation of the organic fertilizer is also provided with a backwashing device, the backwashing device comprises a backwashing water tank, a backwashing pump and a backwashing spray gun, the backwashing water tank with backwashing water is arranged on the traction locomotive or the deep ploughing fertilizer device 32, the backwashing pump with a backwashing pump driving mechanism is arranged on the backwashing water tank, the input end of the backwashing pump is communicated and connected with the backwashing water tank, the output end of the backwashing pump is connected with the input end of the backwashing spray gun through a backwashing overflow valve and a hose, the input end of the backwashing overflow valve or the backwashing spray gun is also provided with a backwashing input electromagnetic stop valve, the backwashing input electromagnetic stop valve is electrically connected with an organic fertilizer liquid application controller, the backwashing pump driving mechanism can be a transmission shaft structure connected with a transmission box power output shaft of the traction locomotive or a hydraulic motor structure connected with a hydraulic pump of a hydraulic control mechanism 324, the back washing spray gun is arranged on the organic fertilizer liquid distribution mechanism 325, the nozzle of the back washing spray gun is communicated and connected with the inner cavity of the organic fertilizer liquid distribution mechanism 325, and the spraying direction of the nozzle of the back washing spray gun is opposite to the flowing direction of the mixed organic fertilizer liquid. The back washing pump works all the time in the deep ploughing and fertilizing process, the back washing exhaust electromagnetic stop valve and the back washing input electromagnetic stop valve are in a stop state, the back washing water pumped by the back washing pump flows back to a back washing water tank through a back washing overflow valve, when the flow value fed back by a flow sensor is lower than a set value or the pressure value fed back by a pressure sensor is greater than the set value, a central controller controls a back washing control loop to start working, the central controller firstly sends out an instruction to enable an organic fertilizer liquid processing controller to control a mixed organic fertilizer liquid pumping-out part 18 to pause working, then the central controller sends out an instruction to enable an organic fertilizer liquid applying controller to control the back washing exhaust electromagnetic stop valve and the back washing input electromagnetic stop valve to be opened simultaneously, the mixed organic fertilizer liquid in an organic fertilizer liquid distribution mechanism 325 flows into the ground surface of a farmland from a fertilizing nozzle of a, back washing water pumped by a back washing pump is sprayed out through a nozzle of a back washing spray gun to back wash the inner cavity of the organic fertilizer liquid distribution mechanism 325, mixed organic fertilizer liquid generated by back washing flows below the surface of the farmland through a fertilizing nozzle of a deep ploughing and fertilizing machine 323, after a set time, the central controller sends an instruction to enable the organic fertilizer liquid processing controller to control the mixed organic fertilizer liquid pumping-out part 18 to restart, and simultaneously, the central controller sends an instruction to enable the organic fertilizer liquid applying controller to control the back washing exhaust electromagnetic stop valve and the back washing input electromagnetic stop valve to be closed at the same time, so that the back washing is completed. The arrangement of the back flushing device can ensure that the deep ploughing and fertilizing device 32 can continuously and evenly fertilize for a long time.

In order to achieve a better backwashing effect, as a further improvement scheme of the invention, the number of the backwashing spray gun and the organic fertilizer liquid outlet of the organic fertilizer liquid distribution mechanism 325 is multiple, and each organic fertilizer liquid outlet is provided with the backwashing spray gun.

As an embodiment of the soil covering mechanism 326 of the present invention, the soil covering mechanism 326 is a soil covering roller which is arranged in a rolling manner in a front-back direction, the soil covering roller is hinged to a rear end of the vehicle body 321 through a connecting frame, the vehicle body 321 is provided with a connecting frame swing limiting component which can prevent the soil covering roller from hanging to the ground when the lifting wheels 322 are in a state of supporting the vehicle body 321, the outer surface of the roller of the soil covering roller is provided with a plurality of soil shifting rods which are uniformly distributed along an axial direction and a circumferential direction of the roller, and the soil shifting rods are arranged along a radial direction of the. The soil covering roller is driven to roll on the surface of the farmland in the forward moving process of the deep ploughing and fertilizing device 32, and the soil shifting rod can shift soil to cover soil in the rolling process of the soil covering roller.

In order to increase the overall strength of the deep ploughing fertilizer applicator 323 in the deep ploughing process, as a further improvement scheme of the invention, the top end of the deep ploughing fertilizer applicator 323 is hinged on the vehicle body 321, the bottom end of the deep ploughing fertilizer applicator 323 is a hook-shaped structure bent forwards, one end of the implement lifting hydraulic cylinder is hinged on the vehicle body 321, the other end of the implement lifting hydraulic cylinder is hinged on the deep ploughing fertilizer applicator 323, the deep ploughing fertilizer applicator 323 can be controlled to rotate around the hinged center of the implement lifting hydraulic cylinder by controlling the extension and retraction of the implement lifting hydraulic cylinder, the deep ploughing depth can be further changed, and the deep ploughing fertilizer applicator 323 with the hook-shaped structure has better.

In order to further ensure the deep ploughing and fertilizing effects, as a further improvement of the present invention, as shown in fig. 7, a plurality of deep ploughing and fertilizing machines 323 are arranged in at least two rows in the front-back direction of the vehicle body 321, and the two rows of deep ploughing and fertilizing machines 323 are staggered in the left-right direction, so that the forward resistance of the staggered deep ploughing and fertilizing machines 323 can be reduced on the premise of ensuring the width of the cultivation and management, and further the deep ploughing and fertilizing effects are further ensured.

In order to further increase the depth of deep ploughing and fertilizing, as a further improvement of the present invention, as shown in fig. 3 to 6, a car body pitching hydraulic cylinder is further mounted on the upper portion of the car body 321 in an articulated manner, and is connected with a control valve set of the hydraulic control mechanism 324 through a hydraulic pipeline; the quick connecting mechanism at the front end of the vehicle body 321 is a hinged seat structure; after the quick connecting mechanism at the front end of the vehicle body 321 is hinged with the connecting frame at the rear end of the traction vehicle, the telescopic end of the vehicle body pitching hydraulic cylinder can be hinged with the upper part of the connecting frame at the rear end of the traction vehicle, and then the pitching angle of the vehicle body 321 can be adjusted by controlling the telescopic end of the vehicle body pitching hydraulic cylinder in the deep ploughing and fertilizing process, so that the depth of deep ploughing and fertilizing is increased.

In order to reduce the bending of the fertilizing PE pipe under the condition of smaller turning radius as much as possible in the turning moving process of the traction deep ploughing fertilizing device 32 of the traction locomotive, and further realize the protection of the fertilizing PE pipe and the prolonging of the service life of the fertilizing PE pipe, as shown in figure 8, as a further improvement scheme of the invention, the organic fertilizer liquid distribution mechanism 325 is a vertically arranged closed cylinder structure, a liquid inlet is coaxially arranged at the top of the cylinder structure, a plurality of liquid inlets are uniformly distributed at the bottom of the cylinder structure along the circumferential direction, the liquid inlet is arranged on the organic fertilizer liquid distribution mechanism 325 through a horizontal rotary mounting component, the liquid inlet of the organic fertilizer liquid distribution mechanism 325 can freely rotate around the axial lead of the organic fertilizer liquid distribution mechanism 325, and further the conditions that the fertilizing PE pipe does not follow the turning and the bending of the fertilizing PE pipe under the condition of smaller turning radius in the turning moving process of the traction deep ploughing fertilizing, the PE pipe for fertilizer application is protected, and the service life of the PE pipe is prolonged.

In order to prevent the organic fertilizer solution preparation unit 1 and/or the reel type PE pipe supply device 31 from shifting or inclining due to vibration and the like during the deep ploughing and fertilizing operation and further affecting the conveying of the organic fertilizer solution, as a further improvement scheme of the invention, the first underframe 11 and/or the second underframe 311 are/is further provided with an underframe positioning and supporting mechanism, and the underframe positioning and supporting mechanism can adopt a supporting cylinder structure which can vertically extend downwards to lift the second underframe 311 integrally to be separated from the ground, and can also adopt other positioning and supporting structures such as a telescopic front supporting structure which can extend out to be inserted into the ground.

Because the fertilizer and the farmyard manure are mixed together for use, the nutrient required by the growth of crops can be supplied comprehensively, the nutrient fixation can be reduced, the fertilizer efficiency can be improved, the storage can be kept, the loss can be reduced, the nutrient absorption condition of the crops can be improved, the activity of microorganisms can be promoted, and the decomposition of the farmyard manure can be promoted, so that as a further improvement scheme of the invention, the diluent is a fertilizer solution.

The intelligent environment-friendly deep-application irrigation system for the organic fertilizer is a digital intelligent system with good maneuvering flexibility, and due to the fact that the independently arranged organic fertilizer liquid preparation unit 1 is arranged, after farmyard manure data and fertilization data are received through the fertilization data input and output port, automatic preparation of mixed organic fertilizer liquid can be conducted through the organic fertilizer liquid preparation unit 1, and the organic fertilizer liquid preparation unit 1 does not enter a farmland along with the deep-tillage fertilization device 32 to conduct fertilization, so that the whole volume and the weight of the deep-tillage fertilization device 32 can be greatly reduced, and rolling of the farmland is reduced; the organic fertilizer liquid applying unit 3 comprises the reel type PE pipe supply device 31, the fertilizing PE pipe is wound on the reel 313, so that long-distance and large-area one-time intelligent fertilizing operation can be realized, and the reel type PE pipe supply device 31 does not enter a farmland to fertilize along with the deep ploughing fertilizing device 32, so that the whole volume and weight of the deep ploughing fertilizing device 32 can be further reduced, and the rolling of the farmland is reduced; because the deep ploughing fertilizer applicator 32 can be used for traction and fertilization by a traction locomotive such as a tractor, and the deep ploughing power of the deep ploughing fertilizer applicator 32 comes from the traction locomotive, the overall volume and weight of the deep ploughing fertilizer applicator 32 can be further reduced, and the rolling of the farmland can be reduced, and meanwhile, because the deep ploughing fertilizer applicator 32 is provided with the soil covering mechanism 326, the deep ploughing operation of the deep ploughing fertilizer applicator 32 on the farmland by the traction locomotive can be realized, and the deep ploughing and automatic soil covering of the mixed organic fertilizer liquid directly below the surface of the farmland can be simultaneously carried out; the anti-washing device is arranged, so that the organic fertilizer liquid distribution mechanism 325 can be prevented from being blocked due to precipitation, the deep ploughing and fertilizing device 32 can continuously and uniformly fertilize for a long time, and the mixing and stirring box 13 with a fully-closed structure and the fertilizing mode of deep ploughing, fertilizing and earthing can reduce the pollution degree of farmyard manure to air on the premise of realizing high-efficiency application of organic fertilizer, and is particularly suitable for applying organic fertilizer to a large farmland near a farm.

Claims

1. An organic fertilizer environment-friendly deep application irrigation method is characterized in that an organic fertilizer environment-friendly deep application irrigation intelligent system comprises an organic fertilizer liquid preparation unit (1), an organic fertilizer liquid conveying unit (2), an organic fertilizer liquid applying unit (3) and a centralized electric control unit;

the organic fertilizer liquid preparation unit (1) comprises a first underframe (11), a walking device (12), a mixing and stirring box (13) and an organic fertilizer liquid processing electric control device;

the front end and/or the rear end of the first underframe (11) are/is provided with a traction mechanism;

a traveling device (12) comprising wheels is arranged below the first underframe (11);

the mixing and stirring box (13) is fixedly arranged on the first underframe (11), the mixing and stirring box (13) is of a closed box structure or a tank structure, and the mixing and stirring box (13) is provided with a raw fertilizer input part (14), a raw fertilizer crushing part (15), a diluent pumping part (16), a mixing and stirring part (17) and a mixed organic fertilizer pumping part (18); the raw fertilizer input part (14) comprises a raw fertilizer conveyor and a raw fertilizer pumping pipeline, the raw fertilizer conveyor comprises a raw fertilizer conveyor driving mechanism, and the input end of the raw fertilizer conveyor is communicated with the raw fertilizer pumping pipeline; the raw fertilizer crushing part (15) comprises a closed raw fertilizer crushing chamber and a raw fertilizer crushing device arranged in the raw fertilizer crushing chamber, the input end of the raw fertilizer crushing chamber is connected with the output end of a raw fertilizer conveyor, the output end of the raw fertilizer crushing chamber is communicated and connected with the inner cavity of the mixing and stirring box (13), and the raw fertilizer crushing device comprises a raw fertilizer crushing mechanism and a raw fertilizer crushing driving mechanism; the diluent pumping part (16) comprises a diluent delivery pump and a diluent delivery pipeline, the diluent delivery pump comprises a diluent delivery driving mechanism, the input end of the diluent delivery pump is communicated and connected with the output end of the diluent delivery pipeline, the output end of the diluent delivery pump is communicated and connected with the input end of the raw fertilizer crushing chamber, the input end of the diluent delivery pipeline is communicated and connected with a diluent supply source, a diluent delivery flow electromagnetic control valve is further arranged on the diluent delivery pipeline, and the diluent is a fertilizer solution; the mixing and stirring part (17) comprises a stirring rod and a stirring rod driving mechanism, the stirring rod is erected and installed in an inner cavity of the mixing and stirring box (13), and a stirring blade fixedly connected with the stirring rod is arranged on the stirring rod; the mixed organic fertilizer liquid pumping-out part (18) comprises a mixed organic fertilizer liquid delivery pump, the mixed organic fertilizer liquid delivery pump comprises a mixed organic fertilizer liquid delivery pump driving mechanism, the input end of the mixed organic fertilizer liquid delivery pump is communicated and connected with the inner cavity of the mixing stirring box (13), and the output end of the mixed organic fertilizer liquid delivery pump is also provided with a mixed organic fertilizer liquid delivery flow electromagnetic control valve; an electronic liquid level meter is also arranged on the mixing and stirring box (13); the total power source of the mixing box (13) is an engine which is independently arranged or a transmission part driven by a power output shaft of a traction vehicle gearbox;

the organic fertilizer liquid processing electric control device is arranged on the first underframe (11) and comprises an organic fertilizer liquid processing controller, a raw fertilizer pumping control loop, a raw fertilizer crushing control loop, a diluent pumping control loop, a mixing and stirring control loop and a mixed liquid pumping control loop, wherein the organic fertilizer liquid processing controller is electrically connected with a raw fertilizer conveyor driving mechanism, a raw fertilizer crushing driving mechanism, a diluent conveying flow electromagnetic control valve, a stirring rod driving mechanism, a mixed organic fertilizer liquid conveying pump driving mechanism, a mixed organic fertilizer liquid conveying flow electromagnetic control valve and an electronic liquid level meter respectively;

the organic fertilizer liquid conveying unit (2) comprises an organic fertilizer conveying pipeline, and one end of the organic fertilizer conveying pipeline is connected with a mixed organic fertilizer liquid conveying flow electromagnetic control valve of a mixed organic fertilizer liquid pumping-out part (18);

the organic fertilizer liquid applying unit (3) comprises a reel type PE pipe supply device (31), a deep ploughing and fertilizing device (32) and an organic fertilizer liquid applying electric control device;

the reel type PE pipe supply device (31) comprises a second underframe (311), a travelling mechanism (312), a reel (313), a reel driving mechanism (314), a reel rewinding guiding and limiting mechanism (315) and a fertilizing PE pipe; an auxiliary frame is arranged on the second underframe (311), and the auxiliary frame is installed and connected with the second underframe (311) through a slewing bearing and an auxiliary frame positioning component; a travelling mechanism (312) comprising wheels is arranged below the second underframe (311); the reel (313) is erected and installed on an auxiliary frame of the second underframe (311) through a support frame; the fertilizing PE pipe is wound on the reel (313), and the input end of the fertilizing PE pipe is connected with the other end of the organic fertilizer conveying pipeline of the organic fertilizer liquid conveying unit (2); the reel driving mechanism (314) comprises a reel driving gearbox and a power source, the input end of the reel driving gearbox is connected with the output end of the power source, and the output end of the reel driving gearbox is connected with the reel (313) through a transmission mechanism; the reel backrush guiding and limiting mechanism (315) is arranged in front of the reel (313);

the deep ploughing and fertilizing device (32) comprises a vehicle body (321), lifting wheels (322), a deep ploughing and fertilizing machine tool (323), a hydraulic control mechanism (324), an organic fertilizer liquid distribution mechanism (325) and a soil covering mechanism (326); the front end of the vehicle body (321) is provided with a quick connecting mechanism; the lifting wheels (322) are arranged at the bottom of the vehicle body (321) in a lifting way through wheel lifting hydraulic cylinders; the deep ploughing fertilizer applicators (323) are arranged into a plurality of pieces, the deep ploughing fertilizer applicators (323) are uniformly distributed on the vehicle body (321) in a row in the left-right direction, the top end of each deep ploughing fertilizer applicator (323) is arranged on the vehicle body (321), deep ploughing teeth which extend forwards are arranged at the bottom end of each deep ploughing fertilizer applicator (323), a fertilizer spraying pipe fixedly connected with the rear end of each deep ploughing tooth is arranged at the rear part of the bottom end of each deep ploughing tooth, a fertilizer spraying nozzle is arranged at the bottom end of each fertilizer spraying pipe, and a fertilizer lifting hydraulic cylinder is further arranged on each deep ploughing fertilizer applicator; the hydraulic control mechanism (324) is fixedly arranged at the front part of the vehicle body (321) and comprises a hydraulic pump, a control valve group and a hydraulic oil tank, and the control valve group is respectively connected with the hydraulic pump, the wheel lifting hydraulic cylinder and the machine tool lifting hydraulic cylinder through hydraulic pipelines; the organic fertilizer liquid distribution mechanism (325) is fixedly arranged on the vehicle body (321), the organic fertilizer liquid distribution mechanism (325) comprises at least one organic fertilizer liquid inlet and a plurality of organic fertilizer liquid outlets, the organic fertilizer liquid inlet is communicated and connected with the output end of the fertilizing PE pipe, and the organic fertilizer liquid outlets are respectively communicated and connected with the top end of a fertilizing spray pipe of the deep ploughing and fertilizing machine tool (323) through hoses; the soil covering mechanism (326) is arranged at the rear end of the vehicle body (321) or the rear end of the deep ploughing fertilizer applicator (323) and is positioned behind the fertilizing spray pipe of the deep ploughing fertilizer applicator (323);

the organic fertilizer liquid application electric control device is arranged on the second underframe (311) or the vehicle body (321) and comprises an organic fertilizer liquid application controller, a PE pipe supply device control loop and a deep ploughing fertilization device control loop, wherein the organic fertilizer liquid application controller is respectively and electrically connected with a power source of the reel driving mechanism (314) and a control valve group of the hydraulic control mechanism (324);

the centralized electric control unit comprises a central controller, a display, an organic fertilizer liquid processing control loop and an organic fertilizer liquid applying control loop, wherein the central controller is respectively electrically connected with the display, the organic fertilizer liquid processing controller of the organic fertilizer liquid preparation unit (1) and the organic fertilizer liquid applying controller of the organic fertilizer liquid applying unit (3), and the central controller also comprises a fertilizer application data input and output port;

the application method is characterized by comprising the following steps:

a. and (3) equipment connection and installation: the organic fertilizer liquid preparation unit (1) and the organic fertilizer liquid application unit (3) are dragged to the field by a traction vehicle, a raw fertilizer pump-in pipeline of a raw fertilizer input part (14) is connected with a farmyard manure supply source, two ends of an organic fertilizer conveying pipeline of the organic fertilizer liquid conveying unit (2) are respectively connected with a mixed organic fertilizer liquid conveying flow electromagnetic control valve of a mixed organic fertilizer liquid pump-out part (18) and an input end of a fertilizing PE pipe, an input end of a diluent conveying pipeline is connected with a diluent supply source, and a system is started;

b. preparing mixed organic fertilizer liquid: the operator inputs farmyard manure data information of farmyard manure supply source and farmland fertilization data information into a central controller through a fertilization data input/output port, the central controller calculates and stores required raw manure amount and diluent amount according to the volume of a mixing and stirring box (13) and a built-in organic manure liquid preparation program, then the central controller controls an organic manure liquid processing control loop to start working according to the calculation result, a raw manure conveyor driving mechanism, a raw manure crushing driving mechanism, a diluent conveying driving mechanism, a stirring rod driving mechanism and a mixed organic manure liquid conveying pump driving mechanism are powered by a total power source of the mixing and stirring box, the organic manure liquid processing controller controls the raw manure conveyor driving mechanism, the raw manure crushing driving mechanism, the diluent conveying driving mechanism and the stirring rod driving mechanism to start working simultaneously, and raw manure output from the farmyard manure supply source enters a raw manure crushing part (15) to be crushed under the driving of a raw manure input part (14) Meanwhile, chemical fertilizer solution is sprayed into a raw fertilizer crushing part (15) under the driving of a diluent pump inlet part (16), the crushed raw fertilizer mixed with diluent enters a mixing and stirring box (13) for stirring, when the input raw fertilizer amount reaches a set value, an organic fertilizer solution processing controller controls a raw fertilizer conveyor driving mechanism and a raw fertilizer crushing driving mechanism to stop working, when the input chemical fertilizer solution amount reaches the set value, the organic fertilizer solution processing controller controls a diluent conveyor driving mechanism to stop working, the organic fertilizer solution processing controller controls a stirring rod driving mechanism to continuously work, and the raw fertilizer and the chemical fertilizer solution form uniform mixed organic fertilizer solution under the stirring action of a mixing and stirring part (17);

when the organic fertilizer liquid processing control circuit starts to work, the central controller sends an instruction to control the organic fertilizer liquid application control circuit to start to work, after the auxiliary frame of the second underframe (311) is rotated to enable the deep ploughing fertilizer applicator (32) to face a farmland to be fertilized, the organic fertilizer liquid application controller controls the reel driving mechanism (314) to act to enable the reel (313) to rotate reversely, and the deep ploughing fertilizer applicator (32) accommodated on the auxiliary frame of the second underframe (311) falls to the ground under the guiding action of the reel rewinding guiding and limiting mechanism (315); then, an operator connects the quick connecting mechanism at the front end of the vehicle body (321) with a connecting frame at the rear end of the traction vehicle, connects the power input end of a hydraulic pump of the hydraulic control mechanism (324) with the output shaft of a gearbox of the traction vehicle through a universal coupling, and the traction vehicle is in a standby state;

c. deep ploughing and fertilizing: when the organic fertilizer liquid processing controller feeds back that the mixed organic fertilizer liquid is uniformly prepared, the central controller sends a signal to an operator, the operator starts a traction locomotive, a gearbox of the traction locomotive drives a hydraulic pump of a hydraulic control mechanism (324) to start working, then the central controller sends an instruction to enable the organic fertilizer liquid processing controller to control a mixed organic fertilizer liquid pumping-out part (18) to start working, a mixed organic fertilizer liquid conveying pump starts working when a mixed organic fertilizer liquid conveying flow electromagnetic control valve is opened, the mixed organic fertilizer liquid sequentially enters an organic fertilizer liquid distribution mechanism (325) through an organic fertilizer conveying pipeline and a fertilizer PE pipe of an organic fertilizer liquid conveying unit (2), then enters each fertilizer spraying pipe of a deep ploughing fertilizer applicator (323) through an organic fertilizer liquid outlet of the organic fertilizer liquid distribution mechanism (325), and finally is sprayed out through a fertilizer spraying nozzle; when the mixed organic fertilizer liquid pumping-out part (18) starts to work, the traction locomotive drives the deep ploughing fertilizer device (32) to move forwards, the organic fertilizer liquid application controller controls the reel driving mechanism (314) to act to enable the reel (313) to rotate reversely to discharge the fertilizing PE pipe, the reel driving mechanism (314) stops working after the fertilizing PE pipe is completely discharged, in the process of moving the deep ploughing fertilizer device (32) forwards, the organic fertilizer liquid application controller controls the control valve group of the hydraulic control mechanism (324) to enable the wheel lifting hydraulic cylinder to retract and the implement lifting hydraulic cylinder to extend, the lifting wheels (322) rise to enable the vehicle body (321) to be close to the ground, the deep ploughing teeth of the deep ploughing fertilizer implement (323) are ploughed below the ground surface of a farmland, the mixed organic fertilizer liquid sprayed out through the fertilizer nozzle is sprayed below the ground surface of the farmland, in the process of moving the deep ploughing fertilizer device (32) forwards, the soil covering mechanism (326) located behind the fertilizer nozzle of the deep ploughing implement (323) covers the grooves ploughing teeth Soil;

in the deep ploughing and fertilizing process, when the liquid level of the mixed organic fertilizer liquid fed back by an electronic liquid level meter of the mixing and stirring box (13) is lower than a set liquid level, the organic fertilizer liquid processing controller repeats the step of preparing the mixed organic fertilizer liquid;

d. equipment dismantling and transition: after the deep ploughing fertilization is finished, an operator sends a signal to a central controller, the central controller firstly controls an organic fertilizer liquid processing control loop to stop working, a mixed organic fertilizer liquid conveying flow electromagnetic control valve is closed, a mixed organic fertilizer liquid conveying pump stops working, then the central controller sends an instruction to an organic fertilizer liquid application controller, the organic fertilizer liquid application controller controls a control valve group of a hydraulic control mechanism (324) to enable a wheel lifting hydraulic cylinder to extend out and an implement lifting hydraulic cylinder to retract to an initial state, after the operator removes the deep ploughing fertilization device (32) and a traction locomotive, the organic fertilizer liquid application controller controls a reel driving mechanism (314) to act to enable a reel (313) to rotate forward to recover the fertilization PE pipe, the deep ploughing fertilization device (32) is driven to return to recover in the recovery process of the fertilization PE pipe, and after the deep ploughing fertilization device (32) returns to a reel return guide limiting mechanism (315), the organic fertilizer liquid application controller closes the reel driving mechanism The power source of the structure (314) is used for connecting the towing vehicle with the rear end of the second underframe (311) and then performing transition operation; when the deep ploughing and fertilizing device (32) retracts, the raw fertilizer pump-in pipeline of the raw fertilizer input part (14), the organic fertilizer conveying pipeline of the organic fertilizer liquid conveying unit (2) and the diluent conveying pipeline are removed, and then the tractor is connected with the first underframe (11) to carry out transition operation.

2. The environment-friendly deep organic fertilizer application and irrigation method as claimed in claim 1, wherein a flow sensor or a pressure sensor is arranged in an organic fertilizer liquid distribution mechanism (325) of the intelligent environment-friendly deep organic fertilizer application and irrigation system, a backwash exhaust port with a backwash exhaust electromagnetic stop valve is further arranged on the organic fertilizer liquid distribution mechanism (325), the backwash exhaust electromagnetic stop valve, the flow sensor or the pressure sensor is electrically connected with an organic fertilizer liquid application controller, and the centralized electric control unit further comprises a backwash control loop; the intelligent system for the environment-friendly deep-application irrigation of the organic fertilizer is also provided with a backwashing device, the backwashing device comprises a backwashing water tank, a backwashing pump and a backwashing spray gun, the backwashing water tank with backwashing water inside is arranged on a traction locomotive or a deep-ploughing fertilizing device (32), the backwashing pump with a backwashing pump driving mechanism is arranged on the backwashing water tank, the input end of the backwashing pump is communicated with the backwashing water tank, the output end of the backwashing pump is connected with the input end of the backwashing spray gun through a backwashing overflow valve and a hose, the input end of the backwashing overflow valve or the backwashing spray gun is also provided with a backwashing input electromagnetic stop valve, the backwashing input electromagnetic stop valve is electrically connected with an organic fertilizer liquid application controller, the backwashing spray gun is arranged on an organic fertilizer liquid distribution mechanism (325), and the nozzle of the backwashing spray gun is communicated with the inner cavity of, the jet direction of a nozzle of the back washing spray gun is opposite to the flowing direction of the mixed organic fertilizer liquid;

the back washing pump works all the time in the deep ploughing and fertilizing process, the back washing exhaust electromagnetic stop valve and the back washing input electromagnetic stop valve are in a stop state, the back washing water pumped by the back washing pump flows back to a back washing water tank through a back washing overflow valve, when the flow value fed back by a flow sensor is lower than a set value or the pressure value fed back by a pressure sensor is greater than the set value, a central controller controls a back washing control loop to start working, the central controller firstly sends out an instruction to enable an organic fertilizer liquid processing controller to control a mixed organic fertilizer liquid pumping-out part (18) to pause working, then the central controller sends out an instruction to enable an organic fertilizer liquid applying controller to control the back washing exhaust electromagnetic stop valve and the back washing input electromagnetic stop valve to be opened simultaneously, the mixed organic fertilizer liquid in an organic fertilizer liquid distribution mechanism (325) rapidly flows into the ground surface of a farmland from a fertilizing nozzle of a deep plough, back washing water pumped by a back washing pump is sprayed out through a nozzle of a back washing spray gun to back wash the inner cavity of the organic fertilizer liquid distribution mechanism (325), mixed organic fertilizer liquid generated by back washing flows below the surface of the farmland through a fertilizing nozzle of a fertilizing spray pipe of a deep ploughing fertilizing machine (323), after a set time, the central controller sends an instruction to enable the organic fertilizer liquid processing controller to control the mixed organic fertilizer liquid pumping-out part (18) to restart to work, and simultaneously, the central controller sends an instruction to enable the organic fertilizer liquid applying controller to control the back washing exhaust electromagnetic stop valve and the back washing input electromagnetic stop valve to be closed at the same time, so that a back washing process is completed.

3. The method for environmental-friendly deep organic fertilizer application and irrigation as claimed in claim 2, wherein the driving mechanism of the back washing pump is a transmission shaft structure connected with a power output shaft of a gearbox of a traction locomotive, and the traction locomotive is adopted to provide power for the back washing pump.

4. The environment-friendly deep organic fertilizer application irrigation method as claimed in claim 1, 2 or 3, wherein a vehicle body pitching hydraulic cylinder is further mounted on the upper portion of the vehicle body (321) of the intelligent environment-friendly deep organic fertilizer application irrigation system in an articulated manner, the vehicle body pitching hydraulic cylinder is connected with a control valve bank of a hydraulic control mechanism (324) through a hydraulic pipeline, and the quick connection mechanism at the front end of the vehicle body (321) is of an articulated seat structure; in the deep ploughing and fertilizing process, the central controller controls the pitching angle of the vehicle body (321) through controlling the expansion and contraction of the vehicle body pitching hydraulic cylinder, and the operation depth of the deep ploughing and fertilizing is subjected to auxiliary control.

5. The method for environmental protection and deep application of organic fertilizer as claimed in claim 1, 2 or 3, characterized in that for farmland far away from the farm, the raw fertilizer is transported by a raw fertilizer transport tanker, the raw fertilizer pumping pipeline of the raw fertilizer input part (14) is directly connected with the discharge port of the raw fertilizer transport tanker, and the organic fertilizer transport pipeline of the organic fertilizer liquid transport unit (2) adopts a hose structure suitable for short-distance transport.

6. The method for environmental protection and deep application of organic fertilizer as claimed in claim 1, 2 or 3, wherein the raw fertilizer pumping pipeline of the raw fertilizer input part (14) is directly connected with the discharge port of the farmyard manure centralized fermentation treatment tank (4) aiming at the farmland near the farm, the organic fertilizer conveying pipeline of the organic fertilizer liquid conveying unit (2) is preset around the farmland, and a plurality of openable and closable valves are arranged at different distance positions on the organic fertilizer conveying pipeline.

7. An environment-friendly deep organic fertilizer application method as claimed in claim 1, 2 or 3, wherein the organic fertilizer liquid application unit (3) is hung behind the organic fertilizer liquid preparation unit (1) and is towed and transferred by the same towing vehicle.

8. An environmental protection type deep application method of organic fertilizer as claimed in claim 1, 2 or 3, wherein the central controller is electrically connected to the organic fertilizer liquid processing controller of the organic fertilizer liquid preparation unit (1) and the organic fertilizer liquid application controller of the organic fertilizer liquid application unit (3) respectively by wireless connection.