Oxygen enriching and sterilizing device and oxygen enriching and sterilizing method for soilless culture nutrient solution

Abstract

The invention discloses an oxygen enriching and sterilizing device and an oxygen enriching and sterilizing method for soilless culture nutrient solution. The method includes dissolving air or oxygen into the nutrient solution by the aid of a micro-nano bubble generation technology to form micro-nano bubble oxygen-enriched water so as to enrich the oxygen in the nutrient solution; dissolving ozone in the nutrient solution by the aid of the micro-nano bubble generation technology to form micro-nano bubble ozone water and jointly sterilizing the nutrient solution by an ultraviolet sterilizer. The oxygen enriching and sterilizing device and the oxygen enriching and sterilizing method have the advantages that the dissolved oxygen in the nutrient solution can be effectively increased, root rotting phenomena of hydroponics plants can be reduced, and the yield can be increased; spreading of microbial diseases in the nutrient solution can be effectively suppressed, and the application amount of pesticides can be reduced.

Description

technical field [0001] The invention relates to the field of agricultural production, in particular to a device and method for increasing oxygen and disinfecting nutrient solutions for soilless cultivation. Background technique [0002] Soilless cultivation is a crop cultivation technology that does not use natural soil as a substrate. It is a modern agricultural cultivation that directly cultivates crops in a nutrient solution in a certain device, or on a cultivation bed filled with an inactive solid substrate and a certain nutrient solution. Way. The use of soilless cultivation can effectively overcome continuous cropping obstacles such as soil salinity and soil-borne diseases in the protected cultivation of vegetables and flowers, and can be planted on non-cultivated land every year; and can improve the yield per unit area and product quality. In European developed countries such as the Netherlands, more than 90% of fruits, vegetables and flowers are cultivated without s...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a new type of highly efficient soilless culture solution for the problems of low oxygenation efficiency of the existing soilless culture nutrient solution, single use of various disinfection methods, large environmental pollution, high operating cost, poor effect, and low efficiency. Oxygenation and disinfection device and method for cultivation nutrient solution

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