Bypass automatic fertigation device and method thereof

Abstract

The invention provides a bypass automatic fertigation device which comprises a mixed fertilizer unit, an EC / PH detection unit, a control unit and an execution unit; the mixed fertilizer unit comprises a plurality of fertilizer injection pipelines, a pH regulating pipeline which are parallelly connected with the fertilizer injection pipelines, and water inlet pipelines and mixed fertilizer pipelines which are respectively arranged on the front end and the rear end of the parallel pipelines; the EC / PH detection unit is used for detecting the EC and the pH of the mixed fertilizer solution in the mixed fertilizer pipelines; the control unit controls the proportion of the fertilizer solution in the mixed fertilizer pipelines by respectively controlling the fertilizer injection and the conditioning solution injection of the fertilizer injection pipelines and the ph regulating pipeline, so that they meet the set values; and the execution unit responds to the fertilizing instructions of the control unit, and leads the fertilizer solution in the mixed fertilizer pipelines into a farmland irrigation network. The device can precisely control the fertilizing concentration, the fertilizing proportion and the fertilization in the fertilizing process, and can be simply and quickly connected with an irrigation system with a certain scale and an irrigation head with a certain size, so as to reduce the equipment cost.

Description

technical field [0001] The invention relates to the technical field of farmland irrigation, in particular to a bypass automatic irrigation and fertilization device and a method thereof capable of precisely controlling the fertilization concentration, fertilization ratio and fertilization amount in the fertilization process. Background technique [0002] Precision irrigation and fertilization technology is a modern agricultural technology that combines water and fertilizer supply through irrigation. It can not only maximize the output, but also minimize the pollution to the environment. The use of precise irrigation and fertilization technology can easily adjust the quantity and concentration of nutrients in irrigation water, adjust the proportion of various fertilizers, and make it suitable for the needs of plants; it can greatly improve the utilization rate of chemical fertilizers, improve the effectiveness of nutrients, and promote plant growth. The absorption of nutrients...

AI Technical Summary

Problems solved by technology

However, foreign equipment generally has shortcomings such as large control area, complex system, inconvenient operation, high price, bulky size, and difficulty in moving, making it difficult to promote and apply it on a large scale

China started late in the development of automatic irrigation and fertigation technology. Judging from the current patent and market application situation, the automatic degree of irrigation and fertigation system in my country is not high, and the practicability is not strong; the related equipment and methods are only limited to the improvement and improvement of the original irrigation equipment. The innovation of fertilization and irrigation methods has not applied mature self-control technology to the whole process of fertilization and irrigation; Fertilizer, and inject fertilizer water into the irrigation system through a pressure pump or a height differential method, the entire operation process is time-consuming and laborious; at the same time, there is a lack of accurate EC / pH real-time monitoring in all aspects, and the application sensor has low accuracy and large drift under water pressure, resulting in poor fertilization effect ; Fertilization and irrigation software is only functionally realized, and fails to provide users with in-depth data services

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