Water and fertilizer integrated irrigation system and method for protected cultivation

Abstract

The invention provides a water and fertilizer integrated irrigation system and method for protected cultivation. The water and fertilizer integrated irrigation system is characterized in that a water outlet of a water supply end is connected with a water inlet of a liquid mixing tank and a water inlet of a mother liquor tank, a water outlet of the mother liquor tank is connected with a liquid injection port of the liquid mixing tank through a first water pump, a fertilizer stock solution in the mother liquor tank and water at the water supply end are mixed through the liquid mixing tank, a water outlet of the liquid mixing tank is connected with an irrigation terminal through the first water pump, mixed fertilizer is pumped out by the first water pump to irrigate crops, and a recovered solution after irrigation is recovered, is collected in a first recovery tank and returns to the water inlet of the liquid mixing tank through the first recovery tank. The water and fertilizer integrated irrigation system is simple in structure, convenient to mount, high in automation degree and labor-saving, and reduces the labor intensity. The irrigation and fertilization amounts are adjusted flexibly through collection of environmental data in a protected cultivation process, a nutrient solution is recycled, and the water-saving and fertilizer-saving effects are obvious.

Description

technical field [0001] The invention relates to the field of agricultural irrigation control, in particular to an irrigation system and method for facility cultivation water and fertilizer integration. Background technique [0002] Since the development of my country's water and fertilizer integration technology, on the basis of introducing and absorbing foreign advanced technology, the large-scale production of water and fertilizer integration equipment has gradually formed, and the production has gradually developed from test demonstration to large-scale promotion. [0003] The overall technical level of my country's water and fertilizer integrated irrigation has been developed from the primary stage in the 1980s to the current intermediate stage. Some scientific research institutes cooperate with enterprises to adapt measures to local conditions and develop a variety of fertilization equipment and technologies, including differential pressure fertilization tanks, Venturi ...

AI Technical Summary

Problems solved by technology

However, from an overall analysis, the management level of my country's water and fertilizer integration technology system is relatively low; the proportion of the area covered by irrigation and fertilization technology is still small, and the theoretical and applied research results of water and fertilizer coupling are still few, and the depth is not enough; The research and development of special fertilizers required by chemical technology has just started; the quality of some domestic micro-irrigation equipment products and supporting equipment still has a large gap compared with similar foreign advanced products

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