Control method and device for performing trickle irrigation according to requirement of fruit tree for soil water content

Abstract

The invention discloses a device for performing trickle irrigation according to the requirement of fruit trees for the soil water content. The device comprises a driven waterway control device and a soil water content feedback active control device for controlling the action of the driven waterway control device, wherein the soil water content feedback active control device comprises a hollow china clay head, a shell pipe, a piston, a push rod, a screw cap and a guide connecting pipe; the driven waterway control device comprises a water pipe, a valve shell, a valve plate and a spring, and a space formed by the hollow china clay head under the piston and the shell pipe is filled with a high polymer material which has the capability of expansion when absorbing water and expansion when losing water. The device is applied to trickle irrigation without manual operation or electric power supplying, the requirement of the fruit tree for soil water content can be met, reasonable irrigation is realized, and the influence of the artificial irrigation error on the fruit tree is reduced.

Description

technical field [0001] The invention belongs to the technical field of fruit tree cultivation, and in particular relates to a control method and device for drip irrigation according to the demand of fruit trees for soil water content. Background technique [0002] Fruit trees have different irrigation requirements in different periods. When the fruit trees are in the flowering period and the soil moisture cannot meet the reasonable requirements, it will cause irregular flowering and lower fruit setting rate, which will directly affect the annual yield. When entering the period of rapid fruit expansion, the soil content If the amount of water cannot meet the reasonable requirements, it will seriously affect the growth of the fruit and the quality of the fruit will decline; in the prior art, the drip irrigation of fruit trees needs to be manually adjusted and controlled, which cannot guarantee real-time and effective irrigation needs. The water volume sensor measures and feeds...

AI Technical Summary

Problems solved by technology

[0002] Fruit trees have different irrigation requirements in different periods. When the fruit trees are in the flowering period and the soil moisture cannot meet the reasonable requirements, it will cause irregular flowering and lower fruit setting rate, which directly affects the annual yield. When entering the period of rapid fruit expansion, the soil contains If the amount of water cannot meet the reasonable requirements, it will seriously affect the growth of the fruit and reduce the quality of the fruit; in the prior art, the drip irrigation of fruit trees needs to be manually adjusted and controlled, which cannot guarantee real-time and effective irrigation needs. The water volume sensor measures and feeds back through the data transmission system, the investment cost is high, and it is not convenient to use in some field test areas

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