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Precise irrigation and fertilization control method and system for field crops

A technology for precise irrigation and field crops, applied in the fields of botanical equipment and methods, liquid fertilizer adjustment systems, fertilization devices, etc., can solve the problems of difficult automatic control, high maintenance cost, complex structure, etc., and achieve precise irrigation and fertilization, control accuracy High, simple effect of irrigation and fertilization model

Active Publication Date: 2020-09-08
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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  • Precise irrigation and fertilization control method and system for field crops
  • Precise irrigation and fertilization control method and system for field crops
  • Precise irrigation and fertilization 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 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...

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Application Information

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Patent Type & Authority Applications(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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