Multiple-irrigation-area automatic irrigation and fertilizer application device control equipment

Abstract

The invention provides multiple-irrigation-area automatic irrigation and fertilizer application device control equipment which comprises a water feeding device, a water complementing device, a fertilizer sucking device, a mixing device, an irrigation and fertilizer application device and a control device. The water feeding device, the water complementing device and the fertilizer sucking device are respectively connected with the mixing device, the irrigation and fertilizer application device is connected with the mixing device, and the control device is respectively connected with the water complementing device, the fertilizer sucking device, the mixing device and the irrigation and fertilizer application device, receives a detection signal and outputs a control signal. The equipment is simple in structure, low in cost, convenient to use and capable of monitoring water feeding, fertilization matching and pressure adjustment in the irrigation and fertilizer application procedure when multiple irrigation areas are automatically irrigated through the equipment, meanwhile, the equipment can automatically adjust system output pressure of irrigation and fertilizer application, guarantee consistency of nutrition ingredients of a nutrient solution and target values and guarantee precision of fertilization matching, and the equipment can be applied to soilless cultivation, drop irrigation and micro irrigation systems in modernized glass greenhouses, sunlight greenhouses, plastic greenhouses and other agricultural facilities.

Description

technical field [0001] The invention belongs to the field of agricultural equipment, in particular to a control device for an automatic irrigation and fertilizer applicator in multiple irrigation areas. Background technique [0002] With the rapid development of facility agriculture represented by smart greenhouses, solar greenhouses and plastic greenhouses in my country, the area of ​​facility cultivation in China has also increased, and there are more and more applications of automatic irrigation and fertilization machines that can perform irrigation and fertilization at the same time. The automatic irrigation and fertilizer applicator can mix fertilizer and irrigation water into nutrient solution and deliver it to crops according to the needs of crops. Automatic irrigation and fertilization technology can greatly improve the utilization rate of water and fertilizer, achieve the purpose of saving resources and reducing environmental pollution, and at the same time, it can ...

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Problems solved by technology

[0004] However, when the existing multi-irrigation area automatic irrigation and fertigation machine adopts Venturi as the core component of the fertilizer distribution system, the amount of fertilizer absorption is proportional to the outlet pressure. Fertilizer amount) also changes accordingly, causing the nutrient solution concentration to deviate from the target valu

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