Distributed tidal irrigation cultivation system

Abstract

The invention provides a distributed tidal irrigation cultivation system. The system comprises a liquid storage tank, a water and fertilizer delivery mechanism, a planting container and an overflow pipeline, wherein the water and fertilizer delivery mechanism comprises a submersible pump, a liquid supply pipeline and a liquid return pipeline; the submersible pump is arranged at the bottom of the liquid storage tank and is connected with the liquid supply pipeline; the other end of the liquid supply pipeline is communicated with the interior of the planting container; the liquid supply pipeline is provided with a liquid supply control valve; the elevation of the liquid return pipeline is lower than the liquid supply pipeline; the liquid return pipeline is provided with a liquid discharge control valve; one end of the overflow pipeline is communicated with the part between the liquid supply control valve and the planting container on the liquid supply pipeline, and the other end of the overflow pipeline is communicated with the part between the liquid discharge control valve and the liquid storage tank on the liquid return pipeline; the limiting height of the overflow pipeline is matched with the highest liquid level of the planting container corresponding to the liquid supply pipeline connected with the overflow pipeline. Automatic control over water and fertilizer liquid during irrigation is realized, and the phenomenon that the water and fertilizer liquid overflows from the planting container is avoided.

Description

technical field [0001] The invention relates to the field of plant water and fertilizer supply, in particular to a distributed tidal irrigation cultivation system. Background technique [0002] With the development of science and technology and social progress, irrigation methods in agriculture have also been enriched and diversified from the original single flood irrigation method, and irrigation methods such as sprinkler irrigation, drip irrigation, and infiltration irrigation have gradually been widely used. [0003] Among them, the principle of tidal irrigation is to simulate the tide of the ocean and irrigate the crops at regular intervals. The existing tidal irrigation method mainly adopts flood irrigation, and the water, fertilizer and nutrient solution are directly input into large-area storage areas. Planting containers are arranged in the water bed and trough, so that water and fertilizer enter and exit through the pores on the container, and then penetrate into th...

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Problems solved by technology

Although this improved solution solves the above-mentioned problems to a certain extent, the inventors have found in the test process that if there is no device for controlling the amount of nutrient solution delivered in the improved system, it may occur that the nutrient solution overflows out of the planting container and thus Disadvantages that the nutrients that cause overflow cannot be recycled

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