Water-fertilizer-integrated four-control irrigating and fertilizing system

Abstract

The invention discloses a water-fertilizer-integrated four-control irrigating and fertilizing system. The system comprises middle-level soil moisture sensors and bottom-level soil moisture sensors, which are arranged in dense root areas of plants or middle parts of maximum root soil functional areas, wherein a controller is connected with the middle-level soil moisture sensors and the bottom-level soil moisture sensors. According to the system, the operation is easy, labor is saved, and the popularization and application are facilitated; accurate fertilizer application is achieved through scientifically formulating the total amount of fertilizer application according to the nutrient requirements of crops and regulating and controlling the amount of applied fertilizer through methods such as metered fertilizer application, concentration control, designed irrigation and fertilizer application frequency and proportional fertilizer applicator application, and equipment, and irrigation and fertilizer application control is carried out according to water and fertilizer requirement rules of the crops, so that the crops can be good in growth, high and stable yield is achieved, environmental pollution caused by excessive irrigation and fertilizer application can be controlled, and thus, the irrigation and fertilizer application of comprehensive and accurate control on the period and duration of irrigation and fertilizer application, the total amount and single usage amount of fertilizer application, the degree and depth of irrigation humidification and the concentration and nutrient proportion of fertilizer and water are truly achieved.

Description

technical field [0001] The invention relates to the technical field of water and fertilizer integration, in particular to a water and fertilizer integrated irrigation and fertilization control system. Background technique [0002] Water and fertilizer integration technology is the development direction of modern agriculture and an important means of precise fertilization. According to different environmental conditions and crop water and fertilizer demand rules, using scientific and reasonable control methods to implement water and fertilizer integration is the only way to achieve efficient irrigation and fertilization. However, since the water and fertilizer integration technology has not been used for a long time in China, people generally lack both application experience and in-depth research on the application technology. When implementing the water and fertilizer integration technology, how to control irrigation and fertilization is still lacking. And the method with st...

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Problems solved by technology

[0003] In the disclosed technology, although some people have proposed a modular control scheme for the irrigation and fertilization period, the irrigation and fertilization amount and the irrigation and fertilization cycle, it is not specific and comprehensive enough, the control object is not clear enough, and the operability is not strong in practical application. The comprehensive control of fertigation and fertigation must include the control of the period and duration of fertigation and fertigation, the total amount and single amount of fertilization, the degree and depth of irrigation, the concentration of fertilizer and water, and the proportion of nutrients. In order to achieve effective control of the above objects, this Invented and proposed the design of water and fertilizer integration four-control irrigation and fertilization system

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