CN115777495A - Flue-cured tobacco cultivation drip irrigation system, equipment and terminal based on reference crop water demand - Google Patents
Flue-cured tobacco cultivation drip irrigation system, equipment and terminal based on reference crop water demand Download PDFInfo
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Abstract
The invention belongs to the technical field of drip irrigation for tobacco cultivation, and discloses a drip irrigation system, equipment and a terminal for tobacco cultivation based on reference crop water demand, wherein the drip irrigation system for tobacco cultivation based on reference crop water demand comprises: the system comprises a cultivation soil humidity acquisition module, a cultivation environment temperature acquisition module, an illumination intensity acquisition module, a wireless communication module, a central control module, a water demand calculation module, a drip irrigation water supply module, a drip irrigation timing module, a flue-cured tobacco leaf development evaluation module, a yield prediction module, a data storage module and an updating display module. According to the invention, the water demand of the reference crop of the flue-cured tobacco cultivation drip irrigation system is calculated by the water demand calculation module according to the collected temperature and humidity data and illumination intensity data of the flue-cured tobacco cultivation soil in the planting area to be evaluated, so that the change condition of the actual soil water volume of the greenhouse crop can be accurately estimated, the wide application in soil water determination of agricultural research in China is facilitated, and the continuous deep development of water-saving agricultural research is promoted.
Description
Technical Field
The invention belongs to the technical field of drip irrigation for flue-cured tobacco cultivation, and particularly relates to a drip irrigation system, equipment and a terminal for flue-cured tobacco cultivation based on reference crop water demand.
Background
At present, the tobacco curing type is that tobacco leaves are cured and processed. Can prolong shelf life, improve flavor of cigarette, and reduce tar content. Cured tobacco type cigarettes originated in the uk and are also known as english cigarettes, and "thirty five" is a typical cured tobacco. Mixing different tobacco leaves or different grades of the same tobacco leaves according to a certain proportion to form a cigarette raw material with certain taste or sensory characteristics; however, the existing flue-cured tobacco cultivation drip irrigation method does not comprehensively consider factors such as single leaf weight, leaf size and the like, so that the development condition of the flue-cured tobacco leaves cannot be evaluated in a balanced manner, and the detection process is relatively complicated and the like; meanwhile, the prediction on the yield of the flue-cured tobacco is inaccurate at present. Therefore, a new drip irrigation system for flue-cured tobacco cultivation needs to be designed.
Through the above analysis, the problems and defects of the prior art are as follows: the existing flue-cured tobacco cultivation drip irrigation method does not comprehensively consider factors such as single leaf weight, leaf size and the like, so that the development condition of the flue-cured tobacco cannot be evaluated in a balanced manner, the detection process is relatively complicated, and the yield of the flue-cured tobacco is not accurately predicted.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a flue-cured tobacco cultivation drip irrigation system, equipment and a terminal based on reference crop water demand.
The invention is realized in this way, a flue-cured tobacco cultivation drip irrigation system based on reference crop water demand, the flue-cured tobacco cultivation drip irrigation system based on reference crop water demand includes:
the cultivation soil humidity acquisition module is connected with the wireless communication module and the central control module and used for acquiring humidity data of flue-cured tobacco cultivation soil in a planting area to be evaluated through a humidity sensor;
the cultivation environment temperature acquisition module is connected with the wireless communication module and the central control module and used for acquiring temperature data of the flue-cured tobacco cultivation environment in the planting area to be evaluated through the temperature sensor;
the illumination intensity acquisition module is connected with the wireless communication module and the central control module and used for acquiring illumination intensity data of the flue-cured tobacco cultivation environment in the planting area to be evaluated through an illumination sensor;
the water demand calculation module is connected with the central control module and the drip irrigation water supply module and used for calculating the water demand of the reference crop of the flue-cured tobacco cultivation drip irrigation system according to the collected temperature and humidity data and illumination intensity data of the flue-cured tobacco cultivation soil in the planting area to be evaluated through a water demand calculation program;
the drip irrigation water supply module is connected with the central control module and the water demand calculation module and used for obtaining the reference crop water demand of the flue-cured tobacco cultivation drip irrigation system through the drip irrigation device according to calculation to carry out the drip irrigation water supply for the flue-cured tobacco cultivation;
and the drip irrigation timing module is connected with the central control module and is used for setting drip irrigation time for flue-cured tobacco cultivation.
Further, flue-cured tobacco cultivation drip irrigation system based on reference crop water demand still includes:
the wireless communication module is connected with the cultivation soil humidity acquisition module, the cultivation environment temperature acquisition module, the illumination intensity acquisition module and the central control module and is used for sending acquired temperature and humidity data and illumination intensity data of flue-cured tobacco cultivation soil in the planting area to be evaluated to the central processing unit through the wireless communication device;
the central control module is connected with the cultivation soil humidity acquisition module, the cultivation environment temperature acquisition module, the illumination intensity acquisition module, the wireless communication module, the water demand calculation module, the drip irrigation water supply module, the drip irrigation timing module, the flue-cured tobacco leaf development evaluation module, the yield prediction module, the data storage module and the updating display module and is used for coordinately controlling the normal operation of each module of the flue-cured tobacco cultivation drip irrigation system through a central processing unit;
the flue-cured tobacco leaf development evaluation module is connected with the central control module and is used for evaluating the development of the flue-cured tobacco leaves;
the yield prediction module is connected with the central control module and used for predicting the yield of the flue-cured tobacco;
the data storage module is connected with the central control module and used for storing collected temperature and humidity data, illumination intensity data, water demand of reference crops, drip irrigation water supply data, drip irrigation time, flue-cured tobacco leaf development evaluation data and yield prediction data of flue-cured tobacco cultivation soil in a planting area to be evaluated through a storage;
and the updating display module is connected with the central control module and is used for updating and displaying the collected temperature and humidity data, illumination intensity data, water demand of reference crops, drip irrigation water supply data, drip irrigation time, flue-cured tobacco leaf development evaluation data and yield prediction data of the flue-cured tobacco cultivation soil in the planting area to be evaluated through a display.
Further, calculating the reference crop water demand of the flue-cured tobacco cultivation drip irrigation system through the water demand calculation module comprises:
(1) Drip irrigation water supply is carried out on the flue-cured tobacco of the flue-cured tobacco cultivation drip irrigation system through a drip irrigation device, and the irrigation water amount I of the flue-cured tobacco cultivation drip irrigation system is determined;
(2) Thickness H of flue-cured tobacco cultivation soil layer measured by TDR sensor 0 Determining the moisture increment delta H, delta H = H in the flue-cured tobacco cultivation soil before and after each irrigation 0 (θ 1 -θ 0 )％；
(3) The effective soil moistening area is a cuboid area when the flue-cured tobacco cultivation drip irrigation system is subjected to drip irrigation through the drip irrigation device, and the effective water depth h penetrating into the field after each drip irrigation is determined 1 。
Further, the calculation formula of the reference crop water demand of the flue-cured tobacco cultivation drip irrigation system is as follows:
ET＝I-Δθ＝h 1 -H 0 (θ 1 -θ 0 )％；
in the formula, ET is the water demand of a reference crop of a flue-cured tobacco cultivation drip irrigation system and is unit mm/d; i is the irrigation water amount of a flue-cured tobacco cultivation drip irrigation system, and the unit is mm/d; delta theta is the water storage capacity change of the flue-cured tobacco cultivation soil in the planting area to be evaluated, and the unit is mm/d; h is 1 The actual effective water depth which is infiltrated into the field after the water is dripped by the drip irrigation system for the flue-cured tobacco cultivationThe unit m; h 0 The thickness of the flue-cured tobacco cultivation soil layer in the planting area to be evaluated is m; theta 1 Actually measuring the volume water content percent of flue-cured tobacco cultivation soil after irrigation; theta 0 Actually measuring the volume water content percent of flue-cured tobacco cultivation soil before irrigation;
in the formula, delta Q is the difference value of the readings of the water meters before and after irrigation, eta is the irrigation coefficient, and n is the number of the mulching films.
Further, the evaluation of the flue-cured tobacco development by the flue-cured tobacco development evaluation module comprises:
(1) Collecting basic index data of a plurality of flue-cured tobacco leaves in a planting area to be evaluated, and calibrating the basic index data of the plurality of flue-cured tobacco leaves in the planting area to be evaluated;
(2) Introducing the calibrated basic index data of the plurality of flue-cured tobacco leaves into the constructed flue-cured tobacco leaf development balance index calculation model to calculate the development balance index of each flue-cured tobacco leaf;
(3) And evaluating the development conditions of a plurality of flue-cured tobacco leaves in the planting area to be evaluated through a flue-cured tobacco leaf development evaluation module according to the calculated development balance index of the flue-cured tobacco leaves.
Further, the predicting the yield of the flue-cured tobacco by the yield predicting module comprises:
(1) Establishing a flue-cured tobacco planting database, collecting multiple groups of historical flue-cured tobacco planting data of flue-cured tobaccos planted by multiple planting households, and storing the collected multiple groups of historical flue-cured tobacco planting data into the flue-cured tobacco planting database;
(2) And modeling the multiple groups of historical flue-cured tobacco planting data by adopting a multivariate regression method to obtain a flue-cured tobacco single-yield prediction model, and predicting the flue-cured tobacco planting single yield of the grower.
Further, within the range of the confidence interval of 0-70%, the flue-cured tobacco single-yield prediction model is as follows:
Y＝-185.184-0.792X 1 +0.514X 2 -1.731X 3 -1.073X 4 +22.243X 5 +1.818X 6 ；
wherein the dependent variable Y is used for predicting the yield per unit of flue-cured tobacco and the independent variable X 1 Contract acre number and X 2 For actual planting of acre and X 3 Is the incidence of disease, X 4 Incidence rate of insect pest, X 5 The effective leaf number of the single flue-cured tobacco plant, X 6 The confidence rate of the prediction model is 65.8% for the average fertilizer application rate per mu of flue-cured tobacco.
It is another object of the present invention to provide a computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface for applying the reference crop water demand based flue-cured tobacco cultivation drip irrigation system when executed on an electronic device.
It is another object of the present invention to provide a computer readable storage medium storing instructions that, when executed on a computer, cause the computer to apply the reference crop water demand-based flue-cured tobacco cultivation drip irrigation system.
Another objective of the present invention is to provide an information data processing terminal for implementing the flue-cured tobacco cultivation drip irrigation system based on reference crop water demand.
In combination with the technical solutions and the technical problems to be solved, please analyze the advantages and positive effects of the technical solutions to be protected in the present invention from the following aspects:
first, aiming at the technical problems existing in the prior art and the difficulty in solving the problems, the technical problems to be solved by the technical scheme of the present invention are closely combined with the technical scheme to be protected and the results and data in the research and development process, and some creative technical effects brought after the problems are solved are analyzed in detail and deeply. The specific description is as follows:
according to the method, the water demand calculation module calculates the water demand of the reference crop of the flue-cured tobacco cultivation drip irrigation system according to the collected temperature and humidity data and illumination intensity data of the flue-cured tobacco cultivation soil in the planting area to be evaluated by using the water demand calculation program, and the change condition of the actual soil water volume of the greenhouse crop can be estimated more accurately. The invention also has the functions of multi-point timing positioning automatic data acquisition and storage, is beneficial to wide application in soil moisture determination of agricultural research in China, and promotes continuous and deep development of water-saving agricultural research.
According to the tobacco leaf development balance index calculation model and the development condition evaluation method constructed by the flue-cured tobacco leaf development evaluation module, after measurement and simple operation of indexes such as the single leaf weight, the leaf length and the leaf width of tobacco leaves, the evaluation of any tobacco leaf development condition can be realized, a technical method is provided for scientific evaluation of nutrition and development balance conditions of the flue-cured tobacco leaves, and method loss in the aspect of tobacco leaf development condition evaluation is purposefully solved; meanwhile, variable factors influencing flue-cured tobacco planting are accurately found out through a yield prediction module, an accurate flue-cured tobacco single-yield prediction model is established through flue-cured tobacco planting data statistical analysis, flue-cured tobacco single-yield can be obtained by obtaining flue-cured tobacco planting data of all the variable factors in the prediction of the single yield of the flue-cured tobacco, and then the total yield is obtained.
According to the tobacco leaf development balance index calculation model and the development condition evaluation method constructed by the flue-cured tobacco leaf development evaluation module, after measurement and simple operation of indexes such as the single leaf weight, the leaf length and the leaf width of tobacco leaves, the evaluation of any tobacco leaf development condition can be realized, a technical method is provided for scientific evaluation of nutrition and development balance conditions of the flue-cured tobacco leaves, and method loss in the aspect of tobacco leaf development condition evaluation is purposefully solved; meanwhile, variable factors influencing the flue-cured tobacco planting are accurately found out through a yield prediction module, an accurate flue-cured tobacco single-yield prediction model is established through statistical analysis of flue-cured tobacco planting data, flue-cured tobacco single-yield can be obtained by obtaining flue-cured tobacco planting data of the variable factors in the prediction of the flue-cured tobacco single-yield, and further total yield is obtained.
Secondly, considering the technical scheme as a whole or from the perspective of products, the technical effect and advantages of the technical scheme to be protected by the invention are specifically described as follows:
the flue-cured tobacco cultivation drip irrigation system based on the reference crop water demand has the advantages of being simple in structure, easy to operate, rapid, accurate, flexible and convenient, and capable of effectively solving the problems that the development condition of flue-cured tobacco leaves cannot be evaluated in a balanced mode, the detection process is relatively complicated and the like, and the prediction of the yield of the flue-cured tobacco leaves is inaccurate due to the fact that factors such as single leaf weight and leaf size are not comprehensively considered in the existing flue-cured tobacco cultivation drip irrigation method.
Drawings
FIG. 1 is an information interaction schematic diagram of a flue-cured tobacco cultivation drip irrigation system based on reference crop water demand provided by an embodiment of the invention;
FIG. 2 is a flowchart of a method for calculating a reference crop water demand of a flue-cured tobacco cultivation drip irrigation system through a water demand calculation module according to an embodiment of the invention;
fig. 3 is a flowchart of a method for evaluating the development of flue-cured tobacco leaves by a flue-cured tobacco leaf development evaluation module according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
1. Illustrative embodiments are explained. This section is an illustrative example developed to explain the claims in order to enable those skilled in the art to fully understand how to implement the present invention.
The flue-cured tobacco cultivation drip irrigation system based on the reference crop water demand provided by the embodiment of the invention comprises:
the cultivation soil humidity acquisition module is connected with the wireless communication module and the central control module and used for acquiring humidity data of flue-cured tobacco cultivation soil in a planting area to be evaluated through a humidity sensor;
the cultivation environment temperature acquisition module is connected with the wireless communication module and the central control module and is used for acquiring temperature data of the flue-cured tobacco cultivation environment in the planting area to be evaluated through a temperature sensor;
the illumination intensity acquisition module is connected with the wireless communication module and the central control module and is used for acquiring illumination intensity data of the flue-cured tobacco cultivation environment in the planting area to be evaluated through an illumination sensor;
the wireless communication module is connected with the cultivation soil humidity acquisition module, the cultivation environment temperature acquisition module, the illumination intensity acquisition module and the central control module and is used for sending acquired temperature and humidity data and illumination intensity data of flue-cured tobacco cultivation soil in the planting area to be evaluated to the central processing unit through the wireless communication device;
the central control module is connected with the cultivation soil humidity acquisition module, the cultivation environment temperature acquisition module, the illumination intensity acquisition module, the wireless communication module, the water demand calculation module, the drip irrigation water supply module, the drip irrigation timing module, the flue-cured tobacco leaf development evaluation module, the yield prediction module, the data storage module and the updating display module and is used for coordinately controlling the normal operation of each module of the flue-cured tobacco cultivation drip irrigation system through a central processing unit;
the water demand calculation module is connected with the central control module and the drip irrigation water supply module and used for calculating the water demand of a reference crop of the flue-cured tobacco cultivation drip irrigation system according to the collected temperature and humidity data and illumination intensity data of the flue-cured tobacco cultivation soil in the planting area to be evaluated through a water demand calculation program;
the drip irrigation water supply module is connected with the central control module and the water demand calculation module and used for obtaining the reference crop water demand of the flue-cured tobacco cultivation drip irrigation system through the drip irrigation device according to calculation to carry out drip irrigation water supply for flue-cured tobacco cultivation;
the drip irrigation timing module is connected with the central control module and is used for setting drip irrigation time for flue-cured tobacco cultivation;
the flue-cured tobacco leaf development evaluation module is connected with the central control module and is used for evaluating the development of the flue-cured tobacco leaves;
the yield prediction module is connected with the central control module and used for predicting the yield of the flue-cured tobacco;
the data storage module is connected with the central control module and used for storing collected temperature and humidity data, illumination intensity data, water demand of reference crops, drip irrigation water supply data, drip irrigation time, flue-cured tobacco leaf development evaluation data and yield prediction data of flue-cured tobacco cultivation soil in a planting area to be evaluated through a storage;
and the updating display module is connected with the central control module and is used for updating and displaying the collected temperature and humidity data, illumination intensity data, water demand of reference crops, drip irrigation water supply data, drip irrigation time, flue-cured tobacco leaf development evaluation data and yield prediction data of the flue-cured tobacco cultivation soil in the planting area to be evaluated through a display.
An information interaction schematic diagram of the flue-cured tobacco cultivation drip irrigation system based on the reference crop water demand provided by the embodiment of the invention is shown in fig. 1.
As shown in fig. 2, the calculating the reference crop water demand of the flue-cured tobacco cultivation drip irrigation system by the water demand calculation module according to the embodiment of the present invention includes:
s101, carrying out drip irrigation water supply on the flue-cured tobacco of a flue-cured tobacco cultivation drip irrigation system through a drip irrigation device, and determining the irrigation water amount I of the flue-cured tobacco cultivation drip irrigation system;
s102, measuring the thickness H of a flue-cured tobacco cultivation soil layer by using a TDR sensor 0 Determining the moisture increment delta H in the flue-cured tobacco cultivation soil before and after each irrigation;
s103, when the flue-cured tobacco cultivation drip irrigation system is subjected to drip irrigation through the drip irrigation device, the effective soil humid area is a cuboid area, and the effective water depth h penetrating into the field after each drip irrigation is determined 1 。
The moisture increment delta H = H in the flue-cured tobacco cultivation soil before and after each irrigation provided by the embodiment of the invention 0 (θ 1 -θ 0 )％。
The calculation formula of the reference crop water demand of the flue-cured tobacco cultivation drip irrigation system provided by the embodiment of the invention is as follows:
ET＝I-Δθ＝h 1 -H 0 (θ 1 -θ 0 )％；
in the formula, ET refers to the water demand of the reference crop of the flue-cured tobacco cultivation drip irrigation system and is in unit of mm/d; i is the irrigation water amount of a flue-cured tobacco cultivation drip irrigation system, and the unit is mm/d;delta theta is the water storage capacity change of the flue-cured tobacco cultivation soil in the planting area to be evaluated, and the unit is mm/d; h is a total of 1 The actual effective water depth of the flue-cured tobacco cultivation drip irrigation system which is dripped into the field is m; h 0 The thickness of the flue-cured tobacco cultivation soil layer in the planting area to be evaluated is m; theta 1 Actually measuring the volume water content percent of flue-cured tobacco cultivation soil after irrigation; theta 0 Actually measuring the volume water content percent of flue-cured tobacco cultivation soil before irrigation;
in the formula, delta Q is the difference value of the water meter readings before and after irrigation, eta is the irrigation coefficient, and n is the number of the mulching films.
As shown in fig. 3, the evaluation of the development of the flue-cured tobacco leaves by the flue-cured tobacco leaf development evaluation module according to the embodiment of the present invention includes:
s201, collecting basic index data of a plurality of flue-cured tobacco leaves in a planting area to be evaluated, and calibrating the basic index data of the plurality of flue-cured tobacco leaves in the planting area to be evaluated;
s202, introducing the basic index data of the plurality of flue-cured tobacco leaves after calibration treatment into a constructed flue-cured tobacco leaf development balance index calculation model to calculate the development balance index of each flue-cured tobacco leaf;
s203, evaluating the development conditions of a plurality of flue-cured tobacco leaves in the planting area to be evaluated according to the calculated development balance index of the flue-cured tobacco leaves through a flue-cured tobacco leaf development evaluation module.
The flue-cured tobacco yield prediction through the yield prediction module provided by the embodiment of the invention comprises the following steps:
(1) Establishing a flue-cured tobacco planting database, collecting multiple groups of historical flue-cured tobacco planting data of flue-cured tobaccos planted by multiple planting households, and storing the collected multiple groups of historical flue-cured tobacco planting data into the flue-cured tobacco planting database;
(2) And modeling the multiple groups of historical flue-cured tobacco planting data by adopting a multivariate regression method to obtain a flue-cured tobacco single-yield prediction model, and predicting the flue-cured tobacco planting single yield of the planting households.
In the range of the confidence interval of 0-70%, the single-yield prediction model of the flue-cured tobacco is as follows:
Y＝-185.184-0.792X 1 +0.514X 2 -1.731X 3 -1.073X 4 +22.243X 5 +1.818X 6 ；
wherein the dependent variable Y is used for predicting the yield of the flue-cured tobacco, and the independent variable X is used for predicting the yield of the flue-cured tobacco 1 Is contract acre, X 2 For actual planting of acre and X 3 Is the incidence of disease, X 4 Incidence rate of insect pest, X 5 The effective leaf number of the single flue-cured tobacco plant, X 6 The confidence rate of the prediction model is 65.8% for the average fertilizer application rate per mu of flue-cured tobacco.
2. Application examples. In order to prove the creativity and the technical value of the technical scheme of the invention, the part is the application example of the technical scheme of the claims on specific products or related technologies.
An application embodiment of the present invention provides a computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface for applying the reference crop water demand based flue-cured tobacco cultivation drip irrigation system when executed on an electronic device.
An application embodiment of the present invention provides a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to apply the reference crop water demand-based flue-cured tobacco cultivation drip irrigation system.
The application embodiment of the invention provides an information data processing terminal, which is used for realizing the flue-cured tobacco cultivation drip irrigation system based on the reference crop water demand.
It should be noted that embodiments of the present invention can be realized in hardware, software, or a combination of software and hardware. The hardware portion may be implemented using dedicated logic; the software portions may be stored in a memory and executed by a suitable instruction execution system, such as a microprocessor or specially designed hardware. It will be appreciated by those skilled in the art that the apparatus and methods described above may be implemented using computer executable instructions and/or embodied in processor control code, for example such code provided on a carrier medium such as a diskette, CD-or DVD-ROM, a programmable memory such as read-only memory (firmware) or a data carrier such as an optical or electronic signal carrier. The apparatus and its modules of the present invention may be implemented by hardware circuits such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., or by software executed by various types of processors, or by a combination of hardware circuits and software, e.g., firmware.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a flue-cured tobacco cultivation drip irrigation system based on reference crop water demand, its characterized in that, flue-cured tobacco cultivation drip irrigation system based on reference crop water demand includes:
the cultivation soil humidity acquisition module is connected with the wireless communication module and the central control module and used for acquiring humidity data of flue-cured tobacco cultivation soil in a planting area to be evaluated through a humidity sensor;
the cultivation environment temperature acquisition module is connected with the wireless communication module and the central control module and used for acquiring temperature data of the flue-cured tobacco cultivation environment in the planting area to be evaluated through the temperature sensor;
the illumination intensity acquisition module is connected with the wireless communication module and the central control module and used for acquiring illumination intensity data of the flue-cured tobacco cultivation environment in the planting area to be evaluated through an illumination sensor;
the water demand calculation module is connected with the central control module and the drip irrigation water supply module and used for calculating the water demand of the reference crop of the flue-cured tobacco cultivation drip irrigation system according to the collected temperature and humidity data and illumination intensity data of the flue-cured tobacco cultivation soil in the planting area to be evaluated through a water demand calculation program;
the drip irrigation water supply module is connected with the central control module and the water demand calculation module and used for obtaining the reference crop water demand of the flue-cured tobacco cultivation drip irrigation system through the drip irrigation device according to calculation to carry out drip irrigation water supply for flue-cured tobacco cultivation;
and the drip irrigation timing module is connected with the central control module and is used for setting drip irrigation time for flue-cured tobacco cultivation.
2. The reference crop water demand based flue-cured tobacco cultivation drip irrigation system of claim 1, further comprising:
the wireless communication module is connected with the cultivation soil humidity acquisition module, the cultivation environment temperature acquisition module, the illumination intensity acquisition module and the central control module and is used for sending acquired temperature and humidity data and illumination intensity data of flue-cured tobacco cultivation soil in the planting area to be evaluated to the central processing unit through the wireless communication device;
the central control module is connected with the cultivation soil humidity acquisition module, the cultivation environment temperature acquisition module, the illumination intensity acquisition module, the wireless communication module, the water demand calculation module, the drip irrigation water supply module, the drip irrigation timing module, the flue-cured tobacco leaf development evaluation module, the yield prediction module, the data storage module and the updating display module and is used for coordinately controlling the normal operation of each module of the flue-cured tobacco cultivation drip irrigation system through a central processing unit;
the flue-cured tobacco leaf development evaluation module is connected with the central control module and is used for evaluating the development of the flue-cured tobacco leaves;
the yield prediction module is connected with the central control module and used for predicting the yield of the flue-cured tobacco;
the data storage module is connected with the central control module and used for storing collected temperature and humidity data, illumination intensity data, water demand of reference crops, drip irrigation water supply data, drip irrigation time, flue-cured tobacco leaf development evaluation data and yield prediction data of flue-cured tobacco cultivation soil in a planting area to be evaluated through a storage;
and the updating display module is connected with the central control module and is used for updating and displaying the collected temperature and humidity data, illumination intensity data, water demand of reference crops, drip irrigation water supply data, drip irrigation time, flue-cured tobacco leaf development evaluation data and yield prediction data of the flue-cured tobacco cultivation soil in the planting area to be evaluated through a display.
3. The reference crop water demand-based flue-cured tobacco cultivation drip irrigation system according to claim 1, wherein the calculating of the reference crop water demand of the flue-cured tobacco cultivation drip irrigation system through the water demand calculation module comprises:
(1) Drip irrigation water supply is carried out on the flue-cured tobacco of the flue-cured tobacco cultivation drip irrigation system through a drip irrigation device, and the irrigation water quantity I of the flue-cured tobacco cultivation drip irrigation system is determined;
(2) Thickness H of flue-cured tobacco cultivation soil layer measured by TDR sensor 0 Determining moisture increment delta H, delta H = H in the flue-cured tobacco cultivation soil before and after each irrigation 0 (θ 1 -θ 0 )％；
(3) The effective soil moistening area is a cuboid area when the flue-cured tobacco cultivation drip irrigation system is subjected to drip irrigation through the drip irrigation device, and the effective water depth h penetrating into the field after each drip irrigation is determined 1 。
4. The reference crop water demand-based flue-cured tobacco cultivation drip irrigation system according to claim 3, wherein the reference crop water demand calculation formula of the flue-cured tobacco cultivation drip irrigation system is as follows:
ET＝I-Δθ＝h 1 -H 0 (θ 1 -θ 0 )％；
in the formula, ET is the water demand of a reference crop of a flue-cured tobacco cultivation drip irrigation system and is unit mm/d; i is the irrigation water amount of a flue-cured tobacco cultivation drip irrigation system, and the unit is mm/d; delta theta is the water storage capacity change of the flue-cured tobacco cultivation soil in the planting area to be evaluated, and the unit is mm/d; h is 1 The actual effective water depth of the flue-cured tobacco cultivation drip irrigation system after dripping water and infiltrating into the field is m; h 0 Planting flue-cured tobacco in area for evaluationThe thickness of the cultivation soil layer is unit m; theta 1 Actually measuring the volume water content percent of flue-cured tobacco cultivation soil after irrigation; theta 0 Actually measuring the volume water content percent of flue-cured tobacco cultivation soil before irrigation;
in the formula, delta Q is the difference value of the readings of the water meters before and after irrigation, eta is the irrigation coefficient, and n is the number of the mulching films.
5. The reference crop water demand-based flue-cured tobacco cultivation drip irrigation system of claim 2, wherein the evaluating of the flue-cured tobacco development by the flue-cured tobacco development evaluation module comprises:
(1) Collecting basic index data of a plurality of flue-cured tobacco leaves in a planting area to be evaluated, and calibrating the basic index data of the plurality of flue-cured tobacco leaves in the planting area to be evaluated;
(2) Introducing the calibrated basic index data of the plurality of flue-cured tobacco leaves into the constructed flue-cured tobacco leaf development balance index calculation model to calculate the development balance index of each flue-cured tobacco leaf;
(3) And evaluating the development conditions of a plurality of flue-cured tobacco leaves in the planting area to be evaluated according to the calculated development balance index of the flue-cured tobacco leaves by a flue-cured tobacco leaf development evaluation module.
6. The reference crop water demand-based flue-cured tobacco cultivation drip irrigation system of claim 2, wherein the predicting of the yield of the flue-cured tobacco by the yield prediction module comprises:
(1) Establishing a flue-cured tobacco planting database, collecting multiple groups of historical flue-cured tobacco planting data of flue-cured tobaccos planted by multiple planting households, and storing the collected multiple groups of historical flue-cured tobacco planting data into the flue-cured tobacco planting database;
(2) And modeling the multiple groups of historical flue-cured tobacco planting data by adopting a multivariate regression method to obtain a flue-cured tobacco single-yield prediction model, and predicting the flue-cured tobacco planting single yield of the planting households.
7. The reference crop water demand-based flue-cured tobacco cultivation drip irrigation system according to claim 6, wherein within a confidence interval of 0-70%, the flue-cured tobacco single-yield prediction model is as follows:
Y＝-185.184-0.792X 1 +0.514X 2 -1.731X 3 -1.073X 4 +22.243X 5 +1.818X 6 ；
wherein the dependent variable Y is used for predicting the yield of the flue-cured tobacco, and the independent variable X is used for predicting the yield of the flue-cured tobacco 1 Is contract acre, X 2 For actual planting of acre and X 3 Is the incidence of disease, X 4 Incidence rate of insect pest, X 5 Is the effective leaf number, X, of the flue-cured tobacco of a single plant 6 The confidence rate of the prediction model is 65.8% for the average fertilizer application rate per mu of flue-cured tobacco.
8. A computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface for applying the reference crop water demand based flue-cured tobacco cultivation drip irrigation system of any one of claims 1-7 when executed on an electronic device.
9. A computer readable storage medium storing instructions that, when executed on a computer, cause the computer to apply the reference crop water demand-based flue-cured tobacco cultivation drip irrigation system according to any one of claims 1-7.
10. An information data processing terminal, characterized in that the information data processing terminal is used for realizing the reference crop water demand-based flue-cured tobacco cultivation drip irrigation system according to any one of claims 1-7.
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