A precision irrigation and fertigation control method and system for field crops

A technology for precision irrigation and field crops, applied in liquid fertilizer adjustment systems, botany equipment and methods, fertilization devices, etc., can solve problems such as difficult automatic control, high maintenance costs, and complex structures, and achieve precise irrigation and fertilization and control accuracy High, simple effect of fertigation model

Active Publication Date: 2021-08-31
CHINA AGRI UNIV
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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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  • A precision irrigation and fertigation control method and system for field crops
  • A precision irrigation and fertigation control method and system for field crops
  • A precision irrigation and fertigation control method and system for field crops

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] At present, the fertilization equipment products in the water and fertilizer integration system mainly include Venturi fertilizer applicators, differential pressure fertilization tanks, gravity self-pressure fertilization, centrifugal pumps, vortex pumps, jet pumps, etc., which are suitable for micro-irrigation systems, pipeline sprinkler ir...

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Abstract

The embodiment of the present invention provides a precision irrigation and fertigation control method and system for field crops. By establishing an irrigation and fertilization model, setting the power frequency of the irrigation water pump to control the irrigation flow rate; Liquid concentration and the relationship between the flow rate of the plunger pump fertilizer applicator and the pressure of the main pipe and the relationship between the power supply frequency. For precision irrigation and fertilization of field crops, the irrigation and fertilization model of the system is simple, the flow error is less than 1%, the control precision is high, the adjustment is convenient, and the system response time is short. It has the advantages of stable operation, durability, safety and reliability.

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...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C23/00A01G25/16
CPCA01C23/007A01G25/16
Inventor 严海军王晶晶黎耀军张再军
Owner CHINA AGRI UNIV
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