CN110122024A - A kind of intelligent integral fertilization system for applying biogas slurry - Google Patents

A kind of intelligent integral fertilization system for applying biogas slurry Download PDF

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Publication number
CN110122024A
CN110122024A CN201910495738.2A CN201910495738A CN110122024A CN 110122024 A CN110122024 A CN 110122024A CN 201910495738 A CN201910495738 A CN 201910495738A CN 110122024 A CN110122024 A CN 110122024A
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CN
China
Prior art keywords
biogas slurry
module
liquid manure
intelligent
field
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CN201910495738.2A
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Chinese (zh)
Inventor
周顺桂
林皓
廖斌斌
车建刚
吴志伟
林杰
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Fujian Province Green Ecological Environmental Protection Co Ltd
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Fujian Province Green Ecological Environmental Protection Co Ltd
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Priority to CN201910495738.2A priority Critical patent/CN110122024A/en
Publication of CN110122024A publication Critical patent/CN110122024A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C23/00Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
    • A01C23/007Metering or regulating systems
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C23/00Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
    • A01C23/04Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
    • A01C23/042Adding fertiliser to watering systems
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance

Abstract

The present invention relates to the intelligent integral fertilization systems that one kind can apply biogas slurry.The system comprises liquid manure scheduling modules, and plant growth nutritional requirement progress fertilization compositions based on earth measurement is diluted and met to biogas slurry;Liquid manure filtering module filters diluted water soluble fertilizer and biogas slurry;Liquid manure conveyor module, for the biogas slurry after proportion, water soluble fertilizer to be sufficiently mixed, and pass through pipeline;Monitor on field control module, for monitoring field weather information, plant growth information;Intelligent control module can be realized application operation account and automatically generate, additionally it is possible to automatically control the operation of modules by neural network and deep learning.The present invention is highly integrated in integrated box body by liquid manure scheduling module, liquid manure filtering module, liquid manure conveyor module and intelligent control module, the present invention can be saved effectively manually, reduce labor intensity, it is stable, it is adapted to all kinds of irrigation pipe systems, application biogas slurry that can be scientific and efficient and rich water etc. improve irrigation quality and efficiency.

Description

A kind of intelligent integral fertilization system for applying biogas slurry
Technical field
The present invention relates to agricultural fertilizer technical fields, more particularly to a kind of intelligent integral fertilising system that can apply biogas slurry System.
Background technique
Biogas slurry contains the nutrient of various plants growth, and amino acid, various growth hormone and vitamin abundant etc., are people A kind of widely known quick-acting organic fertilizer.With the sustainable development of the ecological agriculture, the purposes of biogas slurry is also gradually by people Development and utilization.Meanwhile the Xi Jinping General Secretary talk in the 14th meeting of central finance and economics leading group on point out to accelerate to promote Animal waste processing and recycling;" General Office of the State Council promotes animal waste resource utilization about quickening Opinion " (Office of the State Council send out (2017) No. 48) point out animal waste resource utilization to be pushed forward comprehensively, building breeding combines, The sustainable development new frame of agriculture and animal husbandry circulation, encourage biogas slurry and the livestock breeding wastewater through harmless treatment as fertilizer science also Field utilizes;It also indicates that and wants in " livestock and poultry feces resource utilization action scheme (2017-the year two thousand twenty) " (agriculture and animal husbandry sends out (2017) No. 11) Increase organic fertilizer, the application equipment research and development promotion efficiency of natural pond fertilizer.The cropland application and natural pond fertilizer of biogas slurry are further pushed from State-level The research and development of application equipment.
Currently, most biogas slurry fertilizer apparatus complicated integral structures, filtration system do not have automatic back-flushing function, need people Power clears up the filtered filter residue of biogas slurry, reduces the working efficiency of fertilizer apparatus, and intelligent level is lower, and control is inconvenient, wave Take manpower;Traditional the Integration of Water into Fertilizer is only applicable to the application of soluble solids or liquid fertilizer, higher for solid content Biogas slurry lacks effective filters and is difficult to meet the requirement of field drip irrigation and sprinkling irrigation equipment, is easy clogging drip irrigation and sprinkling irrigation is set It is standby, meanwhile, existing water-fertilizer integral facilities and equipment poor compatibility is not able to satisfy the demand of a variety of irrigation conduits.And without Diluted biogas slurry chronic administration in the fields, can be improved the content of organic matter in a short time, improve fertilizer efficiency, but to the warp of plantlet stage Crop of helping generates the adverse effect of burn seedlings, and chronic administration is larger to environmental hazard, if carrying out manual dilution to biogas slurry, not only reduces Working efficiency, also adds labor intensity.
Therefore, research and develop that one kind can large area uses, equipment compatibility is strong, highly integrated, biogas slurry filtering accuracy is high, automatic mistake The intelligent integral fertilization system for applying biogas slurry for filtering backwash, can effectively save artificial, reduction labor intensity, and operation is steady It is fixed, all kinds of irrigation pipe systems are adapted to, application biogas slurry that can be scientific and efficient and rich water etc. improve irrigation quality and efficiency.
Summary of the invention
The purpose of the present invention is to provide the intelligent integral fertilization systems that one kind can apply biogas slurry, can effectively save people Work reduces labor intensity, stable, is adapted to all kinds of irrigation pipe systems, application biogas slurry that can be scientific and efficient and rich water etc., Improve irrigation quality and efficiency.
To achieve the above object, the technical scheme is that one kind can apply the intelligent integral fertilization system of biogas slurry, Include:
Liquid manure scheduling module, biogas slurry is diluted for the demand according to long-term cropping and meet plant growth nutritional requirement into Row fertilization compositions based on earth measurement;
Liquid manure filtering module removes impurity therein for filtering the liquid that dilution includes biogas slurry, water soluble fertilizer;
Liquid manure conveyor module is dripped for being sufficiently mixed the biogas slurry after proportion, water soluble fertilizer by pipeline to field It fills, equipment of sprinkler irrigation, pours planting site crop;
Monitor on field control module, for monitor field weather information, plant growth information and by wireless transmission function it is real-time Transmit data;Field liquid manure application is precisely controlled by wireless transmission function realization;
Intelligent control module, control liquid manure scheduling module, liquid manure filtering module, liquid manure conveyor module and monitor on field control module Linkage, realize intelligent operation, application situation practical to biogas slurry is arranged and recorded, and realizes that biogas slurry application runs account certainly It is dynamic to generate;The intelligent control module can also automatically control the operation of modules by autoanalysis and self-teaching.
In an embodiment of the present invention, the biogas slurry scheduling module sets conductivity (EC according to the demand of long-term cropping Value), it realizes that biogas slurry and clear water are mixed according to predetermined ratio, reaches setting EC value and remain stable, and can be native according to surveying The result of formula applies Water soluble fertilizer.
In an embodiment of the present invention, it includes stacked filtering, film filtering, secondary filter that the liquid manure filtering module, which uses, The filter type of device.
In an embodiment of the present invention, the stacked filter type, filtering accuracy are 4-200 μm;The film filtering side Formula is filtered liquid manure using tubular membrane filtering, and for filtering accuracy up to 4-10 μm, tubular type membrane material is optional to match inoranic membrane film core With organic tubular membrane core, the tubular membrane core includes the tubular membrane core of ceramic membrane, metal film, PE, PVC, PTFE, PVDF;It is described Accurate filter, 0.1-60 μm of filtering accuracy, inside is using tubuloses such as PP melt-blown, line burning, folding, titanium filter core, active carbon filter cores Filter core is as filter element.The filtering module can adjust filtering accuracy according to the demand of field drip irrigation and microspray irrigation, to prevent The blocking of drip head and micro-spraying hole guarantees the normal application of liquid manure.
In an embodiment of the present invention, the liquid manure conveyor module is moved using variable ratio frequency changer centrifugal pump as what liquid manure conveyed Power can adequately be mixed water soluble fertilizer, biogas slurry and clear water according to fertilizer application formula, be delivered to field pipe after filtering Road;Meanwhile pressure gauge is provided with after centrifugal pump, according to preset pressure value, the intelligent control module can pass through frequency conversion in real time Device controls the revolving speed of centrifugal pump, so that pipeline pressure value be made to keep constant, guarantees that the flow of field drip irrigation equipment is constant.
In an embodiment of the present invention, the monitor on field control module, can real-time monitoring field include wind speed, wind To, aerial temperature and humidity, rainfall, soil temperature and humidity, intensity of illumination, radiation, carbon dioxide, video and image, field data adopt It is real that collection and control signal are transmitted through LORA, NB-IoT, RF433/315M, bluetooth (Bluetooth), Zigbee, WiFi network Existing, acquisition data and control information unification are transmitted to the intelligent control core, then are transmitted to by Ethernet, WiFi, 4G, 5G Cloud Server carries out data storage and processing, is precisely controlled by the realization of data analysis and Control to field liquid manure application;Institute It states and reserves wireless communication interface in intelligent control module, demand adds monitor on field equipment according to the growth of different crops.
In an embodiment of the present invention, the intelligent control module, including PLC, MCU single-chip microcontroller, SoC embedded system, The form of host computer can control the connection of biogas slurry scheduling module, biogas slurry filtering module, biogas slurry conveyor module and monitor on field module It is dynamic;The intelligent control module can also automatically control the operation of modules by neural network and deep learning;It can prop up It holds cell phone application remotely to control, can be realized automatic running, manually operation and long-range control, can control the reasonable of multiple irrigated areas Fertilising realizes intelligent operation, water soluble fertilizer, biogas slurry and the practical application situation of clear water is arranged and recorded, realization is applied It is automatically generated with operation account.
In an embodiment of the present invention, the method which realizes fertilising, includes the following steps:
Step S1, field weather information and plant growth information are monitored by monitor on field control module;
Step S2, scientific matching is carried out to water soluble fertilizer and biogas slurry according to the demand of long-term cropping by liquid manure scheduling module;
Step S3, water is controlled according to the step S1 field weather information monitored and plant growth information by intelligent control module Fertile filtering module, liquid manure conveyor module carry out filtering, mixing and the conveying of water soluble fertilizer and biogas slurry, realize intelligent fertilizing, Water soluble fertilizer, biogas slurry and the practical application situation of clear water can be arranged and recorded by intelligent control module simultaneously, it is real Now application operation account automatically generates.
Compared to existing system and method, the invention has the following advantages: the present invention passes through liquid manure scheduling module pair Water soluble fertilizer and biogas slurry are rationally diluted, and the accumulation of burn seedlings and soil intermediate ion is prevented;By liquid manure filtering module to natural pond Liquid is filtered, and on the basis of preventing blocking of the biogas slurry to pipeline and drip irrigation equipment, has substantially no effect on the content of biogas slurry nutrient; It is sufficiently mixed by liquid manure conveyor module guarantee water soluble fertilizer, biogas slurry and clear water, keeps pipeline pressure and guarantee drip irrigation equipment Flow it is constant;By monitor on field control module real-time monitoring field meteorology and plant growth information, adjust in real time biogas slurry and Liquid manure application program;Control that biogas slurry proportion, filter automatic backwash, pipeline pressure be constant and and field by intelligent control module Between monitoring control module linkage, realize intelligent operation, application situation practical to biogas slurry is arranged and recorded, and realization biogas slurry is applied It is automatically generated with operation account.It is final to realize the intelligent automatic fertilization of liquid manure one, reduce fertilising cost, improve planting income, section Learn the functions such as proportion.
Detailed description of the invention
Fig. 1 is the flow chart for the intelligent integral fertilization system that one kind of the present invention can apply biogas slurry.
The position Fig. 2 one kind of the present invention can apply the structural schematic diagram of the intelligent integral fertilization system of biogas slurry.
In figure: 1 is liquidometer, and 2 be electric control valve, and 3 be remote control liquid flowmeter, and 4 be EC electrode, and 5 be pH electrode, and 6 be pressure Force snesor, 7 be two-bit triplet solenoid valve, and 8 be filter, and 9 be solenoid valve, and 10 be weather station, and 11 be intelligence control system.
Specific embodiment
With reference to the accompanying drawing, technical solution of the present invention is specifically described.
The present invention provides the intelligent integral fertilization systems that one kind can apply biogas slurry, comprising:
Liquid manure scheduling module, biogas slurry is diluted for the demand according to long-term cropping and meet plant growth nutritional requirement into Row fertilization compositions based on earth measurement;
Liquid manure filtering module removes impurity therein for filtering the liquid that dilution includes biogas slurry, water soluble fertilizer;
Liquid manure conveyor module is dripped for being sufficiently mixed the biogas slurry after proportion, water soluble fertilizer by pipeline to field It fills, equipment of sprinkler irrigation, pours planting site crop;
Monitor on field control module, for monitor field weather information, plant growth information and by wireless transmission function it is real-time Transmit data;Field liquid manure application is precisely controlled by wireless transmission function realization;
Intelligent control module, control liquid manure scheduling module, liquid manure filtering module, liquid manure conveyor module and monitor on field control module Linkage, realize intelligent operation, water soluble fertilizer, biogas slurry and the practical application situation of clear water arranged and recorded, realization Application operation account automatically generates;The intelligent control module can also be automatically controlled each by autoanalysis and self-teaching The operation of module.
The method that above system realizes fertilising, includes the following steps:
Step S1, the monitoring of field weather information and plant growth information is carried out by monitor on field control module;
Step S2, scientific matching is carried out to water soluble fertilizer and biogas slurry according to the demand of long-term cropping by liquid manure scheduling module;
Step S3, water is controlled according to the step S1 field weather information monitored and plant growth information by intelligent control module Fertile filtering module, liquid manure conveyor module carry out filtering, mixing and the conveying of water soluble fertilizer and biogas slurry, realize intelligent fertilizing, Water soluble fertilizer, biogas slurry and the practical application situation of clear water can be arranged and recorded by intelligent control module simultaneously, it is real Now application operation account automatically generates.
The following are specific implementation examples of the invention.
A kind of intelligent integral fertilization system for applying biogas slurry, specific embodiment are as follows:
(1), liquid manure scheduling module: EC electrode 4 is mounted on after centrifugal pump, can be carried out to the EC value of biogas slurry and clear water mixed liquor Real-time monitoring, when concentration range of the EC value in mixed liquor beyond setting, intelligence control system 11 transmits signals to biogas slurry The aperture of electric control valve 2-1, increase or smaller biogas slurry electric control valve 2-1, until mixed liquor EC value is in setting model again In enclosing, mixed liquor EC value can not be still adjusted to setting range (i.e. EC value mistake when biogas slurry electric control valve 2-1 aperture reaches 100% It is low) when, intelligence control system 11 will be issued to clear water electric control valve 2-2 and be instructed, and reduce opening for clear water electric control valve 2-2 Degree, until mixed liquor EC value is in setting range again;PH electrode 5 is option, when screen key is shown as " pH protection taboo With " when, which does not start, and when screen key is shown as " in pH protection execution ", function comes into force, automatic control of not saying good-bye; When screen key is shown as " in pH protection execution ", pH electrode 5 can control biogas slurry according to the pH high level and pH normal value of setting The opening and closing of electric control valve 2-1, it may be assumed that when mixed liquor pH value reaches pH high level, intelligence control system 11 controls biogas slurry Electric control valve 2-1 is closed, and when mixed liquor mixed liquor pH value is lower than pH normal value, it is electronic that intelligence control system 11 controls biogas slurry Regulating valve 2-1 is again turned on.
(2), liquid manure filtering module: the backwash form of filter 8 includes that manual backwashing, timing backwash and pressure difference are anti- Rinse three kinds;Manual recoil washing procedure is pre-set in intelligence control system 11, and user can hand on the touchscreen as needed Dynamic to click backwash button, two set filters 8 will be backwashed alternately;Timing backwashing procedures are in advance in intelligence control system 11 Set the time interval of backwash, and the practical operation situation of the calculating of interval time and intelligent biogas slurry water-fertilizer integral equipment without It closes;Pressure difference backwashing procedures are that the pressure drop of intake pressure sensor 6-1 and discharge pressure sensor 6-2 reaches preset touching When dynamic pressure difference, 11 automatic running backwashing procedures of intelligence control system, when timing backwash backwashes overlapped with pressure difference, mutually Nonintervention.
(3), liquid manure conveyor module: the numerical value of default intake pressure sensor 6-1, intake pressure sensor 6-1 is by pipeline Pressure value real-time Transmission is to intelligence control system 11, when pipeline pressure value is greater than preset pressure value, intelligent control system System 11 adjusts centrifugation revolution speed by frequency converter, sets in advance until the pressure value of intake pressure sensor 6-1 real-time monitoring is equal to Fixed pressure value.
(4), monitor on field control module: weather station 10 can measure wind speed, wind direction, air themperature, air humidity, atmosphere Pressure, rainfall, global radiation, CO2, the soil moisture, soil moisture, and real time data is delivered to intelligence control system 11, it is described Intelligence control system 11 can automatically control the operation of field control equipment according to weather station data, adjust liquid manure application program.
(5), intelligent control module can automatically control the operation of modules by autoanalysis and self-teaching, guarantee The science and high efficiency of liquid manure application;Water soluble fertilizer, biogas slurry and the practical application situation of clear water are arranged and recorded, it is real Now application operation account automatically generates.Intelligence control system 11, which has, manually and automatically controls both of which: (1), user scene it is straight Connect operation.Extreme in special circumstances in part, equipment can satisfy the demand that user scene directly operates;(2), user can be according to The setting of Different Crop, various zones, the pre-set programs in intelligence control system 11 realize automation and scientific and reasonable biogas slurry Application.Meanwhile equipment supports cell phone application remotely to control, and can accomplish unattended;One-touch starting can be used under manual mode, It is run by pre-set program, each key can open biogas slurry electric control valve 2-1, clear according to opens solenoid valve 9- The successively open command such as water electric control valve 2-2-unlatching centrifugal pump.
The above are preferred embodiments of the present invention, all any changes made according to the technical solution of the present invention, and generated function is made When with range without departing from technical solution of the present invention, all belong to the scope of protection of the present invention.

Claims (8)

1. the intelligent integral fertilization system that one kind can apply biogas slurry characterized by comprising
Liquid manure scheduling module, biogas slurry is diluted for the demand according to long-term cropping and meet plant growth nutritional requirement into Row fertilization compositions based on earth measurement;
Liquid manure filtering module removes impurity therein for filtering the diluted liquid including biogas slurry, water soluble fertilizer;
Liquid manure conveyor module is dripped for being sufficiently mixed the biogas slurry after proportion, water soluble fertilizer by pipeline to field It fills, equipment of sprinkler irrigation, pours planting site crop;
Monitor on field control module, for monitoring field weather information, plant growth information, and it is real-time by wireless transmission function Transmit data;Field liquid manure application is precisely controlled by wireless transmission function realization;
Intelligent control module, control liquid manure scheduling module, liquid manure filtering module, liquid manure conveyor module and monitor on field control module Linkage, realize intelligent operation, water soluble fertilizer, biogas slurry and the practical application situation of clear water arranged and recorded, realization Application operation account automatically generates;The intelligent control module can also be automatically controlled each by autoanalysis and self-teaching The operation of module.
2. the intelligent integral fertilization system that one kind according to claim 1 can apply biogas slurry, which is characterized in that the water Fertile scheduling module, can set conductivity according to the demand of long-term cropping, i.e. EC value, realize biogas slurry and clear water according to predetermined ratio into Row mixing reaches setting EC value and remains stable, and can apply Water soluble fertilizer according to the result of soil measurement formula.
3. the intelligent integral fertilization system that one kind according to claim 1 can apply biogas slurry, which is characterized in that the water Fertile filtering module use include it is stacked filtering, film filtering, accurate filter filter type.
4. the intelligent integral fertilization system that one kind according to claim 3 can apply biogas slurry, which is characterized in that described folded Chip filter type, filtering accuracy are 4-200 μm;The membrane filtration pattern is filtered liquid manure using tubular membrane filtering, Filtering accuracy is up to 4-10 μm, and tubular type membrane material is optional to match inoranic membrane film core and organic tubular membrane core, and the tubular membrane core includes Ceramic membrane, metal film, PE, PVC, PTFE, PVDF tubular membrane core;The accurate filter, using accurate filter to liquid manure Be filtered, 0.1-60 μm of filtering accuracy, inside using include PP melt-blown, line burning, folding, titanium filter core, active carbon filter core pipe Shape filter core selects different filter elements as filter element, according to different filter medium and design technology;The liquid manure mistake Filtering accuracy can be adjusted according to the demand of field drip irrigation and microspray irrigation by filtering module, to prevent the blocking of drip head and micro-spraying hole, be protected Demonstrate,prove the normal application of liquid manure.
5. the intelligent integral fertilization system that one kind according to claim 1 can apply biogas slurry, which is characterized in that the water Fertile conveyor module, the power conveyed using variable ratio frequency changer centrifugal pump as liquid manure, can by water soluble fertilizer, biogas slurry and clear water according to Fertilizer application formula is adequately mixed, and is delivered to field pipeline after filtering;Meanwhile pressure gauge is provided with after centrifugal pump, according to Preset pressure value, the intelligent control module can pass through the revolving speed of Frequency Converter Control centrifugal pump in real time, to make pipeline pressure Value is kept constant, and guarantees that the flow of field drip irrigation equipment is constant.
6. the intelligent integral fertilization system that one kind according to claim 1 can apply biogas slurry, which is characterized in that the field Between monitor control module, can real-time monitoring field include wind speed, wind direction, aerial temperature and humidity, rainfall, soil temperature and humidity, light According to intensity, radiation, carbon dioxide, video and image, field data acquisition and control signal are transmitted through LORA network, NB- IoT, RF433/315M, bluetooth, Zigbee, WiFi realize that acquisition data and control information unification are transmitted to the intelligent control Module, then Cloud Server is transmitted to by Ethernet, WIFI, 4G, 5G, data storage and processing are carried out, is analyzed and is controlled by data System is realized and is precisely controlled to field liquid manure application;Wireless communication interface is reserved in the intelligent control module, according to difference The growth demand of crop adds monitor on field equipment.
7. the intelligent integral fertilization system that one kind according to claim 1 can apply biogas slurry, which is characterized in that the intelligence Energy control module can control biogas slurry scheduling module, natural pond including PLC, MCU single-chip microcontroller, SoC embedded system, the form of host computer The linkage of liquid filtering module, biogas slurry conveyor module and monitor on field module;The intelligent control module can also pass through nerve net Network and deep learning automatically control the operation of modules;Cell phone application can be supported remotely to control, can be realized automatic running, Operation and long-range control manually, can control the rational application of fertilizer in multiple irrigated areas, intelligent operation be realized, to water soluble fertilizer, natural pond Liquid and the practical application situation of clear water are arranged and are recorded, and realize that application operation account automatically generates.
8. the intelligent integral fertilization system that one kind according to claim 1 can apply biogas slurry, which is characterized in that the system The method for realizing fertilising, includes the following steps:
Step S1, field weather information and plant growth information are monitored by monitor on field control module;
Step S2, scientific matching is carried out to water soluble fertilizer and biogas slurry according to the demand of long-term cropping by liquid manure scheduling module;
Step S3, water is controlled according to the step S1 field weather information monitored and plant growth information by intelligent control module Fertile filtering module, liquid manure conveyor module carry out filtering, mixing and the conveying of water soluble fertilizer and biogas slurry, realize intelligent fertilizing, Water soluble fertilizer, biogas slurry and the practical application situation of clear water can be arranged and recorded by intelligent control module simultaneously, it is real Now application operation account automatically generates.
CN201910495738.2A 2019-06-10 2019-06-10 A kind of intelligent integral fertilization system for applying biogas slurry Pending CN110122024A (en)

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CN111142483A (en) * 2019-12-16 2020-05-12 深圳市东深电子股份有限公司 Irrigation area big data acquisition management system and method based on water affair Internet of things
CN111296028A (en) * 2020-03-25 2020-06-19 福建省农科农业发展有限公司 Biogas slurry irrigation system capable of adjusting concentration of applied liquid bacterial manure
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CN114402968B (en) * 2022-01-21 2023-01-10 中国农业科学院农业环境与可持续发展研究所 Biogas slurry irrigation and fertilization system and application thereof

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CN111847767A (en) * 2020-06-23 2020-10-30 湖南海尚环境生物科技股份有限公司 Ecological system for livestock and poultry breeding biogas slurry utilization and application thereof
CN113557837A (en) * 2021-07-26 2021-10-29 河北农业大学 Intelligent water and fertilizer integrated equipment and use method thereof
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