CN114680029B - Irrigation method, device, equipment and storage medium based on soil and crop root system - Google Patents
Irrigation method, device, equipment and storage medium based on soil and crop root system Download PDFInfo
- Publication number
- CN114680029B CN114680029B CN202210146656.9A CN202210146656A CN114680029B CN 114680029 B CN114680029 B CN 114680029B CN 202210146656 A CN202210146656 A CN 202210146656A CN 114680029 B CN114680029 B CN 114680029B
- Authority
- CN
- China
- Prior art keywords
- irrigation
- target area
- crops
- soil
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
- A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Mining
Abstract
The invention relates to the technical field of irrigation, in particular to an irrigation method based on soil and crop root systems, which comprises the following steps: acquiring the transpiration and evaporation capacity, leaf area index and rainfall of crops in a target area; acquiring the water demand of crops in a target area according to the transpiration and evaporation capacity of the crops in the target area, the leaf area index, the rainfall capacity of the target area and a water demand calculation algorithm; obtaining the salt leaching rate of crops in a target area, obtaining the irrigation quantity of the crops in the target area according to a water demand, the salt leaching rate and an irrigation quantity calculation algorithm of the crops in the target area, generating a water storage instruction according to the irrigation quantity of the crops in the target area, and sending the water storage instruction to an irrigation device; according to the root system depth of the crops, soil moisture content data corresponding to the root system depth of the crops are obtained, and according to the soil moisture content data and a preset water demand threshold value of each growth period of the crops, the irrigation device is controlled to perform irrigation and drainage operation so as to improve irrigation and drainage efficiency.
Description
Technical Field
The invention relates to the technical field of irrigation, in particular to an irrigation method, device and equipment based on soil and crop root systems and a storage medium.
Background
The current irrigation mode mainly relies on the manual work, and manual control often has characteristics such as strong subjectivity, control error is big, labour cost is high, and this has just led to the water quality decline, the increase of water cost and the waste of water resource, therefore, how rational utilization current water resource carries out high-efficient irrigation, when guaranteeing output, reduces water resource waste, and is very important.
Disclosure of Invention
Based on the above, the invention aims to provide an irrigation method, a device, equipment and a storage medium based on soil and crop root systems, which are used for accurately estimating the water demand of crops in combination with the influence of salinity stress, water quality and the like on the irrigation quantity of crops, and controlling an irrigation device to perform irrigation and drainage operations by detecting the water of the soil depth corresponding to the crop root systems, so that the high-efficiency utilization of the existing water resources is realized, the crop yield is ensured, and the water resource waste is reduced.
In a first aspect, embodiments of the present application provide an irrigation method based on soil and crop root systems, including the steps of:
acquiring the transpiration and evaporation capacity, leaf area index and rainfall of crops in a target area;
acquiring the water demand of crops in the target area according to the transpiration and evaporation capacity of the crops in the target area, the leaf area index, the rainfall capacity of the target area and a water demand calculation algorithm;
acquiring the salt leaching rate of crops in the target area, acquiring the irrigation quantity of the crops in the target area according to a water demand, the salt leaching rate and an irrigation quantity calculation algorithm of the crops in the target area, generating a water storage instruction according to the irrigation quantity of the crops in the target area, and sending the water storage instruction to an irrigation device;
according to the root system depth of the crops, acquiring soil moisture content data corresponding to the root system depth of the crops, and controlling the irrigation device to perform irrigation and drainage operation according to the soil moisture content data and a preset water demand threshold value of each growth period of the crops.
In a second aspect, embodiments of the present application provide an irrigation device based on soil and crop roots, comprising:
the acquisition module is used for acquiring the transpiration and evaporation capacity, the leaf area index and the rainfall of the target area of crops in the target area;
the water demand computing module is used for obtaining the water demand of the crops in the target area according to the transpiration and evaporation capacity of the crops in the target area, the leaf area index, the rainfall capacity of the target area and a water demand computing algorithm;
the irrigation quantity calculating module is used for obtaining the salt leaching rate of the crops in the target area, obtaining the irrigation quantity of the crops in the target area according to the water demand, the salt leaching rate and the irrigation quantity calculating algorithm of the crops in the target area, generating a water storage instruction according to the irrigation quantity of the crops in the target area and sending the water storage instruction to the irrigation device;
the execution module is used for acquiring soil moisture content data corresponding to the root system depth of the crops according to the root system depth of the crops, and controlling the irrigation device to perform irrigation and drainage operations according to the soil moisture content data and a preset water demand threshold value of each growth period of the crops.
In a third aspect, embodiments of the present application provide an apparatus, including: a processor, a memory, and a computer program stored on the memory and executable on the processor; the computer program when executed by the processor performs the steps of the soil and crop root system based irrigation method as described in the first aspect.
In a fourth aspect, embodiments of the present application provide a storage medium storing a computer program which, when executed by a processor, implements the steps of the soil and crop root system based irrigation method of the first aspect.
In this application embodiment, provide a irrigation method, device, equipment and storage medium based on soil and crop root system, combine the influence of salinity stress, quality of water etc. to crop water filling, estimate the crop water demand accurately to through detecting the moisture of the soil degree of depth corresponding with the crop root system, control irrigation equipment and irrigate drainage operation, realized the high-efficient utilization to current water resource, when guaranteeing crop output, reduce the water resource waste.
For a better understanding and implementation, the present invention is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a schematic flow chart of an irrigation method based on soil and crop root systems according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of S1 in an irrigation method based on soil and crop root systems according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of S3 in an irrigation method based on soil and crop root systems according to an embodiment of the present application;
FIG. 4 is a schematic flow chart of S3 in an irrigation method based on soil and crop root systems according to another embodiment of the present application;
FIG. 5 is a schematic flow chart of S4 in an irrigation method based on soil and crop root systems according to an embodiment of the present application;
FIG. 6 is a schematic structural view of an irrigation device based on soil and crop root systems according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a computer device according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message, without departing from the scope of the present application. The word "if"/"if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination", depending on the context.
Referring to fig. 1, fig. 1 is a flow chart of an irrigation method based on soil and crop root system according to an embodiment of the present application, and the method includes the following steps:
s1: and acquiring the transpiration and evaporation amount, the leaf area index and the rainfall of the target area of crops in the target area.
The main execution body of the irrigation method based on soil and crop root system is irrigation equipment (hereinafter referred to as irrigation equipment) of the irrigation method based on soil and crop root system, and in an optional embodiment, the irrigation equipment may be a computer equipment, a server, or a server cluster formed by combining multiple computer equipment.
In this embodiment, the irrigation apparatus acquires the transpiration evaporation amount of crops in the target area, the leaf area index, and the rainfall in the target area.
Wherein the leaf area index refers to the multiple of the total area of plant leaves per unit land area, and is usually measured by means of radiometry or image measurement, and common instruments are LAI-2000 plant canopy instruments and the like.
The rainfall of the target area can be measured by a rainfall monitoring device arranged in the target area.
Referring to fig. 2, fig. 2 is a schematic flow chart of S1 in an irrigation method based on soil and crop root system according to an embodiment of the present application, including step S101, specifically including the following steps:
s101: and acquiring the external radiation parameters of the target area, and acquiring the transpiration evaporation capacity of crops in the target area according to the external radiation parameters of the target area, a preset vaporization latent heat coefficient and a transpiration evaporation capacity calculation algorithm.
The external radiation parameters are used for reflecting the radiation quantity of the target area, and the irrigation equipment can measure the external radiation parameters of the target area through a meteorological tower;
the vaporization latent heat refers to the heat absorbed by a certain liquid substance in unit mass in the vaporization process when the temperature is unchanged, and concretely refers to the heat absorbed by the crop water in the vaporization process due to the transpiration effect.
The transpiration evaporation amount calculation algorithm is as follows:
in ET o For the transpiration evaporation capacity, kt is empirical data of transpiration evaporation capacity, and in an alternative embodiment, the value of Kt may be selected from 0.55-0.65, RG o And lambda is the vaporization latent heat coefficient for the external radiation parameter of the target area,
in this embodiment, the irrigation device obtains the external radiation parameter of the target area, and obtains the transpiration evaporation amount of the crops in the target area according to the external radiation parameter of the target area, the preset vaporization latent heat coefficient and the transpiration evaporation amount calculation algorithm.
S2: and acquiring the water demand of the crops in the target area according to the transpiration and evaporation capacity of the crops in the target area, the leaf area index, the rainfall capacity of the target area and the water demand calculation algorithm.
The water demand calculation algorithm is as follows:
CWR＝a×LAI×ET o -P
wherein CWR is the water demand, a is the water demand empirical data, LAI is the leaf area index, and P is the rainfall.
In this embodiment, the irrigation device obtains the water demand of the crops in the target area according to the transpiration and evaporation amount of the crops in the target area, the leaf area index, the rainfall of the target area, and the water demand calculation algorithm.
S3: obtaining the salt leaching rate of crops in the target area, obtaining the irrigation quantity of the crops in the target area according to a water demand, the salt leaching rate and an irrigation quantity calculation algorithm of the crops in the target area, generating a water storage instruction according to the irrigation quantity of the crops in the target area, and sending the water storage instruction to an irrigation device.
Considering that agricultural irrigation water is usually brackish water, and salt stress phenomenon exists in soil root systems due to the transpiration and evaporation effects in the crop growth process, the influence of salt leaching rate required by leaching salt needs to be considered, in this embodiment, irrigation equipment obtains the salt leaching rate of crops in the target area, and the irrigation quantity of the crops in the target area is obtained according to the water demand of the crops in the target area, the salt leaching rate and an irrigation quantity calculation algorithm.
Referring to fig. 3, fig. 3 is a schematic flow chart of step S3 in an irrigation method based on soil and crop root system according to an embodiment of the present application, including steps S301 to S303, specifically including the following steps:
s301: and obtaining the salt tolerance threshold value of crops in the target area and the salt concentration of irrigation water in the target area.
The salt tolerance threshold is used for representing the salt tolerance degree of crops.
In this embodiment, according to the kind of the crop in the target area, the irrigation device may obtain the salt tolerance threshold corresponding to the crop from the database, and measure the irrigation water in the target area by using the ion meter, to obtain the salt concentration of the irrigation water in the target area.
S302: and obtaining the salt leaching rate of the crops in the target area according to the salt tolerance threshold value of the crops in the target area, the salt concentration of the irrigation water in the target area and a salt leaching rate calculation algorithm.
The salt leaching rate calculation algorithm is as follows:
wherein LF is the salt leaching rate, EC w For the salt concentration of the irrigation water, EC e Is the salt tolerance threshold of the crop.
In this embodiment, the irrigation device obtains the salt leaching rate of the crops in the target area according to the salt tolerance threshold of the crops in the target area, the salt concentration of the irrigation water in the target area, and the salt leaching rate calculation algorithm.
S303: and obtaining a first irrigation amount of the crops in the target area according to the water demand, the salt leaching rate and the first irrigation amount calculation algorithm of the crops in the target area.
The first irrigation quantity calculation algorithm is as follows:
IR＝CWR×(1+LF)
wherein IR is the first irrigation amount, and LF is the salt leaching rate.
In this embodiment, the irrigation device obtains the first irrigation amount of the crops in the target area according to the water demand, the salt leaching rate and the first irrigation amount calculation algorithm of the crops in the target area, and accurately estimates the water demand of the crops by combining the influence of salt stress, water quality and the like on the water irrigation amount of the crops, so that the existing water resources are utilized to perform efficient irrigation as much as possible, and the water resource waste is reduced.
The irrigation equipment can generate a first water storage instruction corresponding to the first irrigation amount according to the first irrigation amount of crops in the target area, and send the first water storage instruction to the irrigation device so as to control the irrigation device to store water.
Referring to fig. 4, fig. 4 is a schematic flow chart of S3 in an irrigation method based on soil and crop root system according to another embodiment of the present application, and further includes step S304, which specifically includes:
s304: and acquiring the irrigation efficiency and the irrigation water distribution uniformity of the irrigation device, and acquiring the second irrigation amount of the crops in the target area according to a first irrigation amount of the crops in the target area, the irrigation efficiency of the irrigation device, the irrigation water distribution uniformity and a second irrigation amount calculation algorithm.
Since irrigation water use efficiency depends on irrigation water distribution uniformity and irrigation device efficiency, in an alternative embodiment, irrigation modes of the irrigation device include sprinkler irrigation and drip irrigation, where irrigation modes are sprinkler irrigation, irrigation water distribution uniformity may be selected from within 0.6-0.7, and irrigation modes are drip irrigation, where irrigation water distribution uniformity may be selected from within 0.9-0.95.
In this embodiment, the irrigation device obtains the irrigation efficiency and the uniformity of irrigation water of the irrigation device, and obtains the second irrigation amount of the crops in the target area according to the first irrigation amount of the crops in the target area, the irrigation efficiency of the irrigation device, the uniformity of irrigation water distribution, and the second irrigation amount calculation algorithm, where the second irrigation amount calculation algorithm is:
wherein IWC is the second irrigation amount, IR is the first irrigation amount, ki is the irrigation efficiency, and Kl is the uniformity of irrigation water distribution.
The irrigation equipment can generate a second water storage instruction corresponding to the second irrigation amount according to the second irrigation amount of crops in the target area, and send the second water storage instruction to the irrigation device so as to control the irrigation device to store water.
S4: according to the root system depth of the crops, acquiring soil moisture content data corresponding to the root system depth of the crops, and controlling the irrigation device to perform irrigation and drainage operation according to the soil moisture content data and a preset water demand threshold value of each growth period of the crops.
In order to ensure that each part of the root system of the crop acquires a proper amount of water, in this embodiment, the irrigation device acquires the root system depth of the crop, acquires soil moisture content data corresponding to the root system depth of the crop according to the root system depth of the crop, and controls the irrigation device to perform irrigation and drainage operations according to the soil moisture content data and a preset water demand threshold value of each growth period of the crop, specifically, when the soil moisture content data corresponding to the root system depth of the crop is greater than the water demand threshold value of each growth period of the crop, controls the irrigation device to perform irrigation operations, and when the soil moisture content data corresponding to the root system depth of the crop is less than the water demand threshold value of each growth period of the crop, controls the irrigation device to perform drainage operations.
Referring to fig. 5, fig. 5 is a schematic flow chart of step S4 in the irrigation method based on soil and crop root system provided in an embodiment of the present application, including steps S401 to S402, specifically including the following steps:
s401: dividing the root system depth of the crops into a plurality of soil depth intervals, and obtaining the heat capacity, soil layer volume weight and irrigation water density corresponding to each soil depth interval.
The heat capacity refers to the amount of heat absorbed (or released) at a temperature rise (or drop) of 1 ℃; the soil layer unit weight represents the weight of solid soil particles per unit volume after being dried under natural conditions.
In this embodiment, the irrigation device divides the root depth of the crop into several soil depth intervals, which in an alternative embodiment include a depth of 0-15cm below the soil surface layer, a depth of 15-30cm below the soil surface layer, and a depth of 30-45cm below the soil surface layer.
The irrigation device obtains the heat capacity, the soil layer unit weight and the irrigation water density corresponding to each soil depth interval, and in an alternative embodiment, the irrigation device may adopt a heat pulse technology to extend the probe into the soil depth corresponding to the median of each soil depth interval, and obtain the data corresponding to each soil depth interval measured by the sensor through the sensor connected with the probe, as the heat capacity corresponding to each soil depth interval.
S402: and acquiring soil moisture content data corresponding to each soil depth interval according to a preset soil solid-to-heat ratio and a soil moisture content calculation algorithm corresponding to each soil depth interval.
The soil moisture content calculation algorithm is as follows:
wherein θ is soil moisture content data corresponding to the soil depth, C is the heat capacity, ρ b For the soil layer volume weight, ρ w For the irrigation water density, c w C is the water-heat ratio s Is the solid-to-heat ratio of the soil.
In this embodiment, the irrigation device obtains the soil moisture content data corresponding to each soil depth interval according to a preset soil solid-to-heat ratio and a soil moisture content calculation algorithm corresponding to each soil depth interval.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an irrigation device based on soil and crop root system according to an embodiment of the present application, where the device may implement all or a part of the irrigation device based on soil and crop root system by software, hardware or a combination of both, and the device 6 includes:
an acquisition module 61 for acquiring a transpiration evaporation amount, a leaf area index of crops in a target area, and a rainfall in the target area;
a water demand calculation module 62, configured to obtain a water demand of the crop in the target area according to a transpiration evaporation amount, a leaf area index, a rainfall capacity of the target area, and a water demand calculation algorithm of the crop in the target area;
the irrigation amount calculation module 63 is configured to obtain a salt leaching rate of the crop in the target area, obtain an irrigation amount of the crop in the target area according to a water demand, the salt leaching rate and an irrigation amount calculation algorithm of the crop in the target area, generate a water storage instruction according to the irrigation amount of the crop in the target area, and send the water storage instruction to an irrigation device;
the execution module 64 is configured to obtain soil moisture content data corresponding to the root system depth of the crop according to the root system depth of the crop, and control the irrigation device to perform irrigation and drainage operations according to the soil moisture content data and a preset water demand threshold value of each growth period of the crop.
In the embodiment of the application, the transpiration and evaporation capacity, the leaf area index and the rainfall of the target area of crops are acquired through the acquisition module; acquiring the water demand of crops in the target area according to the transpiration and evaporation capacity of the crops in the target area, the leaf area index, the rainfall capacity of the target area and a water demand calculation algorithm by a water demand calculation module; obtaining the salt leaching rate of crops in the target area through an irrigation amount calculation module, obtaining the irrigation amount of the crops in the target area according to a water demand, the salt leaching rate and an irrigation amount calculation algorithm of the crops in the target area, generating a water storage instruction according to the irrigation amount of the crops in the target area, and sending the water storage instruction to an irrigation device; and the execution module is used for acquiring soil moisture content data corresponding to the root system depth of the crops according to the root system depth of the crops, and controlling the irrigation device to perform irrigation and drainage operations according to the soil moisture content data and a preset water demand threshold value of each growth period of the crops. The water demand of crops is accurately estimated by combining the influences of salinity stress, water quality and the like on the water irrigation quantity of the crops, and the irrigation and drainage operation is controlled by detecting the water of the soil depth corresponding to the root system of the crops, so that the high-efficiency utilization of the existing water resources is realized, the crop yield is ensured, and the water resource waste is reduced.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a computer device according to an embodiment of the present application, where the computer device 7 includes: a processor 71, a memory 72, and a computer program 73 stored on the memory 72 and executable on the processor 71; the computer device may store a plurality of instructions adapted to be loaded by the processor 71 and to execute the steps of the method according to the embodiment shown in fig. 1 to 5, and the specific execution process may be referred to in the specific description of the embodiment shown in fig. 1 to 5, which is not repeated here.
Wherein processor 71 may include one or more processing cores. The processor 71 performs various functions of the soil and crop root system based irrigation device 6 and processes the data by executing or executing instructions, programs, code sets or instruction sets stored in the memory 72 and invoking data in the memory 72 using various interfaces and wiring to various parts within the server, alternatively the processor 71 may be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field-programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programble Logic Array, PLA). The processor 71 may integrate one or a combination of several of a central processing unit 71 (Central Processing Unit, CPU), an image processor 71 (Graphics Processing Unit, GPU), and a modem, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the touch display screen; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor 71 and may be implemented by a single chip.
The Memory 72 may include a random access Memory 72 (Random Access Memory, RAM) or a Read-Only Memory 72 (Read-Only Memory). Optionally, the memory 72 includes a non-transitory computer readable medium (non-transitory computer-readable storage medium). Memory 72 may be used to store instructions, programs, code sets, or instruction sets. The memory 72 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as touch instructions, etc.), instructions for implementing the various method embodiments described above, etc.; the storage data area may store data or the like referred to in the above respective method embodiments. The memory 72 may optionally be at least one memory device located remotely from the aforementioned processor 71.
The embodiment of the present application further provides a storage medium, where the storage medium may store a plurality of instructions, where the instructions are suitable for being loaded by a processor and executed by the processor, and the specific execution process may refer to the specific description of the embodiment shown in fig. 1 to 5, and details are not repeated herein.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other manners. For example, the apparatus/terminal device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical function division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc.
The present invention is not limited to the above-described embodiments, but, if various modifications or variations of the present invention are not departing from the spirit and scope of the present invention, the present invention is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.
Claims (8)
1. An irrigation method based on soil and crop root systems is characterized by comprising the following steps:
acquiring external radiation parameters of a target area, leaf area indexes of crops in the target area and rainfall of the target area, and acquiring the transpiration evaporation capacity of the crops in the target area according to the external radiation parameters of the target area, a preset vaporization latent heat coefficient and a transpiration evaporation capacity calculation algorithm, wherein the transpiration evaporation capacity calculation algorithm is as follows:
in ET o For the transpiration and evaporation capacity, kt is empirical data of transpiration and evaporation capacity, RG o Lambda is the gasification latent heat coefficient, which is the external radiation parameter of the target area;
acquiring the water demand of crops in the target area according to the transpiration and evaporation capacity of the crops in the target area, the leaf area index, the rainfall capacity of the target area and a water demand calculation algorithm;
acquiring the salt leaching rate of crops in the target area, acquiring the irrigation quantity of the crops in the target area according to a water demand, the salt leaching rate and an irrigation quantity calculation algorithm of the crops in the target area, generating a water storage instruction according to the irrigation quantity of the crops in the target area, and sending the water storage instruction to an irrigation device;
according to the root system depth of the crops, acquiring soil moisture content data corresponding to the root system depth of the crops, and controlling the irrigation device to perform irrigation and drainage operation according to the soil moisture content data and a preset water demand threshold value of each growth period of the crops.
2. The irrigation method based on soil and crop root system as claimed in claim 1, wherein the step of obtaining the salt leaching rate of the crop in the target area comprises the steps of:
acquiring a salt tolerance threshold value of crops in the target area and the salt concentration of irrigation water in the target area;
obtaining the salt leaching rate of crops in the target area according to the salt tolerance threshold value of the crops in the target area, the salt concentration of irrigation water in the target area and a salt leaching rate calculation algorithm, wherein the salt leaching rate calculation algorithm is as follows:
wherein LF is the salt leaching rate, EC w For the salt concentration of the irrigation water, EC e Is the salt tolerance threshold of the crop.
3. The irrigation method based on soil and crop root system according to claim 1, wherein the obtaining the irrigation amount of the crop in the target area according to the water demand, the salt leaching rate and the irrigation amount calculation algorithm of the crop in the target area comprises the steps of:
obtaining a first irrigation amount of crops in the target area according to the water demand, the salt leaching rate and a first irrigation amount calculation algorithm of the crops in the target area, wherein the first irrigation amount calculation algorithm is as follows:
IR＝CWR×(1+LF)
wherein IR is the first irrigation amount, and LF is the salt leaching rate.
4. The irrigation method based on soil and crop root system according to claim 1, wherein the obtaining the irrigation amount of the crop in the target area according to the water demand, the salt leaching rate and the irrigation amount calculation algorithm of the crop in the target area further comprises the steps of:
obtaining irrigation efficiency and irrigation water distribution uniformity of the irrigation device, and obtaining second irrigation quantity of crops in the target area according to a first irrigation quantity of the crops in the target area, irrigation efficiency of the irrigation device, irrigation water distribution uniformity and a second irrigation quantity calculation algorithm, wherein the second irrigation quantity calculation algorithm is as follows:
wherein IWC is the second irrigation amount, ki is the irrigation efficiency, and Kl is the uniformity of irrigation water distribution.
5. The method of claim 1, wherein the step of obtaining soil moisture content data corresponding to the root system depth of the crop comprises the steps of:
dividing the root system depth of the crop into a plurality of soil depth intervals, and acquiring the heat capacity, soil layer volume weight and irrigation water density corresponding to each soil depth interval;
acquiring soil moisture content data corresponding to each soil depth interval according to a preset soil solid-to-heat ratio corresponding to each soil depth interval and a soil moisture content calculation algorithm, wherein the soil moisture content calculation algorithm is as follows:
wherein θ is soil moisture content data corresponding to the soil depth, C is the heat capacity, ρ b For the soil layer volume weight, ρ w For the irrigation water density, c w C is the water-heat ratio s Is the solid-to-heat ratio of the soil.
6. Irrigation equipment based on soil and crop root system, characterized by, include:
the device comprises an acquisition module, a calculation module and a calculation module, wherein the acquisition module is used for acquiring external radiation parameters of a target area, leaf area indexes of crops in the target area and rainfall capacity of the target area, and acquiring the transpiration evaporation capacity of the crops in the target area according to the external radiation parameters of the target area, a preset vaporization latent heat coefficient and a transpiration evaporation capacity calculation algorithm, wherein the transpiration evaporation capacity calculation algorithm is as follows:
in ET o For the transpiration and evaporation capacity, kt is empirical data of transpiration and evaporation capacity, RG o Lambda is the gasification latent heat coefficient, which is the external radiation parameter of the target area;
the water demand computing module is used for obtaining the water demand of the crops in the target area according to the transpiration and evaporation capacity of the crops in the target area, the leaf area index, the rainfall capacity of the target area and a water demand computing algorithm;
the irrigation quantity calculating module is used for obtaining the salt leaching rate of the crops in the target area, obtaining the irrigation quantity of the crops in the target area according to the water demand, the salt leaching rate and the irrigation quantity calculating algorithm of the crops in the target area, generating a water storage instruction according to the irrigation quantity of the crops in the target area and sending the water storage instruction to the irrigation device;
the execution module is used for acquiring soil moisture content data corresponding to the root system depth of the crops according to the root system depth of the crops, and controlling the irrigation device to perform irrigation and drainage operations according to the soil moisture content data and a preset water demand threshold value of each growth period of the crops.
7. A computer device, comprising: a processor, a memory, and a computer program stored on the memory and executable on the processor; the computer program when executed by the processor implements the steps of the soil and crop root system based irrigation method of any of claims 1 to 5.
8. A storage medium, characterized by: the storage medium stores a computer program which, when executed by a processor, implements the steps of the soil and crop root system based irrigation method of any of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210146656.9A CN114680029B (en) | 2022-02-17 | 2022-02-17 | Irrigation method, device, equipment and storage medium based on soil and crop root system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210146656.9A CN114680029B (en) | 2022-02-17 | 2022-02-17 | Irrigation method, device, equipment and storage medium based on soil and crop root system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114680029A CN114680029A (en) | 2022-07-01 |
| CN114680029B true CN114680029B (en) | 2023-05-16 |
Family
ID=82137264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210146656.9A Active CN114680029B (en) | 2022-02-17 | 2022-02-17 | Irrigation method, device, equipment and storage medium based on soil and crop root system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114680029B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116050679B (en) * | 2023-04-03 | 2023-06-20 | 中化现代农业有限公司 | Irrigation decision-making method and device and electronic equipment |
| CN116368984B (en) * | 2023-04-10 | 2023-11-10 | 中国水利水电科学研究院 | Method for cooperatively solving water shortage and salinization of oasis irrigation in arid region |
| CN116542428B (en) * | 2023-07-05 | 2023-09-26 | 中国科学院地理科学与资源研究所 | Regional irrigation water demand estimation method and device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308665B (en) * | 2013-05-30 | 2015-02-11 | 北京市园林科学研究所 | Method and device for analyzing water transportation of plants and soil of urban green lands |
| CN106069597A (en) * | 2016-06-22 | 2016-11-09 | 滨州泰裕麦业有限公司 | A kind of Saline-alkaline Soils of Yellow River Delta water-saving irrigation new technology |
| CN110264101B (en) * | 2019-06-28 | 2021-05-25 | 西安理工大学 | Method for optimizing crop water productivity of saline farmland |
| CN110197437B (en) * | 2019-06-28 | 2021-06-15 | 西安理工大学 | Method for regulating and controlling irrigation water utilization efficiency of saline irrigation area |
| US20210059136A1 (en) * | 2019-09-04 | 2021-03-04 | Baseline, Inc. | Systems and methods of irrigation need assessment |
| CN111280019A (en) * | 2020-02-06 | 2020-06-16 | 山东农业大学 | Soil moisture digital prediction and irrigation early warning method |
| CN113642269B (en) * | 2021-07-30 | 2023-11-14 | 青岛农业大学 | Precise irrigation method and irrigation system |
-
2022
- 2022-02-17 CN CN202210146656.9A patent/CN114680029B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114680029A (en) | 2022-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114680029B (en) | Irrigation method, device, equipment and storage medium based on soil and crop root system | |
| CN107529731B (en) | Nutrient solution soil tillage system, nutrient solution soil tillage control server, salt aggregation judging method and soil EC sensor | |
| WO2019046967A1 (en) | Generating a yield map for an agricultural field using classification and regression methods | |
| WO2017106962A1 (en) | System and method for real-time water management | |
| CN109492619B (en) | Variable pesticide application method and system integrating remote sensing, model and algorithm | |
| WO2017011053A1 (en) | Generating digital models of nutrients available to a crop over the course of the crop's development based on weather and soil data | |
| Reyes-González et al. | Comparative analysis of METRIC model and atmometer methods for estimating actual evapotranspiration | |
| JP2015080438A (en) | Nutrient solution soil culture system, nutrient solution soil culture control server, nutrient solution soil culture control program, and controller | |
| JP2017217013A (en) | Nutrient solution soil cultivation system and nutrient solution soil cultivation control server | |
| Huang et al. | Simulation study of the impact of permanent groundcover on soil and water changes in jujube orchards on sloping ground | |
| CN111310639B (en) | Evergreen artificial forest remote sensing identification method and evergreen artificial forest growth remote sensing monitoring method | |
| Liakos et al. | A decision support tool for managing precision irrigation with center pivots | |
| Hedley et al. | Spatial irrigation scheduling for variable rate irrigation | |
| AU2017100206A4 (en) | Quantitative water irrigation method and apparatus | |
| CN107437262B (en) | Crop planting area early warning method and system | |
| CN114651708B (en) | Crop irrigation method, device and equipment based on salinity leaching rate and storage medium | |
| CN116090842A (en) | Farmland irrigation decision-making method, device, equipment and storage medium | |
| Li et al. | Multi-year trend and interannual variability in soil respiration measurements collected in an urban forest ecosystem in Beijing, China | |
| CN113156082B (en) | Method and system for identifying depth of active layer of crop root system | |
| CN108040840A (en) | Control method of irrigation | |
| Saod et al. | Telemetry System for Highland Tomato Plants Using Ubidots Platform | |
| Vellidis et al. | A smartphone app for precision irrigation scheduling in cotton | |
| Kizer | A precision irrigation scheme to manage plant water status using leaf monitors in almonds | |
| CN112697996A (en) | Soil monitoring method, device, equipment and storage medium | |
| US20220129997A1 (en) | Systems and methods for crop management |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |