Water and fertilizer integrated precise fertilization control system

Abstract

The invention discloses a water and fertilizer integrated precise fertilization control system. The system mainly comprises a fertilizer storage tank, an electromagnetic flowmeter, a pressure sensor, an electric valve module, a screw pump module and an electric control module. The electric valve module comprises a first electric valve and a second electric valve, the screw pump module comprises a pump body and a motor, and the electric control module comprises a main control unit, a power supply subsystem, a man-machine interaction module and a variable-frequency conversion speed regulation device. The fertilizer storage tank is used for storing liquid fertilizer, the screw pump module pumps out the liquid fertilizer in the fertilizer storage tank and discharges the liquid fertilizer into a main water pipeline, the electromagnetic flowmeter collects the amount of applied fertilizer, a power supply subsystem of the electric control module provides required electric energy for the system, the main control unit receives, processes and sends instructions, the variable-frequency speed regulation device is used for changing the frequency of a screw pump motor, and the man-machine interaction module is used for parameter setting and operation control. The water and fertilizer integrated precise fertilization control system has the advantages that the fertilizing amount of the liquid fertilizer can be accurately controlled, and the fertilizing precision and efficiency are greatly improved.

Description

technical field [0001] The invention belongs to the field of agricultural automation control, and relates to a water and fertilizer integrated precision fertilization control system. Background technique [0002] Xinjiang is located in the hinterland of the Eurasian continent, and belongs to the typical temperate continental arid climate. Since the oases in the north and the south are surrounded by deserts and Gobi, the local ecosystem is very fragile. Drought, salinity, and sandstorms have become the three major obstacles to the development of oasis agriculture. Factors, agricultural production mainly depends on the rational application of water and fertilizer. At present, agricultural water and fertilizer in Xinjiang is still in the extensive stage of high consumption and low yield. For the same crop yield indicators, Xinjiang is lower than the national average. This is mainly due to the low utilization rate of fertilizers caused by traditional extensive fertilization an...

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Problems solved by technology

Drip irrigation under mulch has been widely used as a cotton planting method in Xinjiang, and has basically realized automatic control; however, in terms of fertilizer application, due to problems such as unstable external water pressure and low reliability of fertilization equipment, it still mainly relies on manual experience. Dispensing

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