Precise irrigation and fertilization control method and system for field crops

Abstract

The embodiment of the present invention provides a precise irrigation and fertilization control method and system for field crops. The power frequency of an irrigation pump is set to control the irrigation flow through establishing an irrigation and fertilization model; according to the fertilization model, the power frequency of a plunger pump fertilization machine is automatically adjusted to control the fertilizer injection through setting the conductivity of an irrigation main pipe, the concentration of a prepared fertilizer solution, and the relationship among the flow rate of the plungerpump fertilization machine, the pressure of the main pipe and the power frequency; and the irrigation water amount, fertilizer amount and fertilizer solution concentration can be accurately controlled to achieve precise irrigation and fertilization of field crops. The system has a simple irrigation and fertilization model, a flow error of less than 1%, high control precision, convenient adjustment and short system response time of the system, and has the advantages of stable operation, durability, safety, reliability, etc.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of water and fertilizer integration, and in particular to a method and system for precise irrigation and fertilization control of field crops. Background technique [0002] Water and fertilizer integration technology is to use the pressure pipeline irrigation system (with sprinkler irrigation system and micro-irrigation system as the main carrier) to configure soluble solid or liquid fertilizer into water and fertilizer liquid. Irrigation devices such as drippers and micro-spray belts perform regular, quantitative, and uniform irrigation and fertilization of crops to meet the needs of crops for nutrients and water, and realize simultaneous management and efficient use of water and fertilizer. The application of integrated water and fertilizer technology started early in developed countries. Currently, more than 90% of Israel's agricultural land has adopted integrated water and ferti...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a precision irrigation and fertilization control method and system for field crops, which are used to solve the shortcomings of the prior art, such as large losses, difficult automatic control, low efficiency, complex structure, and high maintenance costs. Convenient and short system response time, with the advantages of stable work, durable, safe and reliable

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