Device for automatically controlling irrigation and water draining of paddy field

Abstract

The invention provides a device for automatically controlling irrigation and water draining of paddy field, and is characterized by comprising a water level control cabinet. A water inlet pipe and a water outlet pipe are arranged at the side wall of the water level control cabinet; an open end through which the water outlet pipe stretches towards the inside of the water level control cabinet is provided with a sealing cover; the sealing cover is connected to the bottom of a floating ball through a digging rope; an electromagnetic relay is arranged at the top of the water level control cabinetand connected with a water pump; an adjusting plate is fixed at the inner side wall of the water level control cabinet; the adjusting plate is contacted with a contact switch of the electromagnetic relay. The invention has the advantages of conservation of time and labour, is simple in operation and adjusts water level of the paddy field according to growth demands of rice, maximally utilizes rainfall and reduces irrigation water use. By controlling water draining, the device provided by the invention can effectively prevent crop water-logging, improve Saline-sodic soils while reducing outputof nutrient substances such as nitrogen, phosphorus and the like due to agricultural drainage and agricultural pollution reducation.

Description

technical field [0001] The invention relates to water-saving irrigation and drainage control technology for paddy fields in the field of agricultural water and soil engineering. According to the law of water demand of crops, the water level in the field is controlled at the desired height with the necessary minimum amount of irrigation water, and irrigation and drainage are performed relatively easily. , to achieve the purpose of saving water, controlling salt and reducing labor. Background technique [0002] At present, the shortage of water resources and the deterioration of water environment have become one of the reasons that affect the quality of life of Chinese residents and restrict economic development. With the rapid increase of population and industrial development, the biggest gap in the future will be agricultural water. At the same time, the high application of chemical fertilizers and pesticides and unreasonable irrigation and drainage in the field have caused ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a device for automatically controlling the water level of paddy fields, so as to solve the problems of time-consuming and labor-intensive operation of the existing device, and untimely irrigation and drainage.

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