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Nutrient solution in soilless culture methods are commonly used in aerobic What

jyhe3122010-02-20 05:11:08 +0000 #1

Zucai bet I will get tomorrow2010-02-20 05:27:31 +0000 #2
crop root development requires adequate oxygen supply. Although the soilless culture significantly improved the environmental conditions of root crops, but in soilless culture, especially when nutrient solution cultivation, such as when not handled properly, but also easy to hypoxia, affecting root and shoot part of the normal growth and development.

In the cycle of nutrient solution cultivation system, the oxygen needed for root respiration, mainly from the dissolved oxygen in nutrient solution. Aerobic measures mainly the use of mechanical and physical methods to increase the nutrient solution come into contact with air to increase the oxygen in the nutrient solution in the diffusion capacity, so as to enhance the content of oxygen in nutrient solution. Common aerobic methods differ, and spray, agitation, compressed air and so on.

Summer high temperature can be nutrient pool built in the ground, in order to reduce the temperature of nutrient solution to increase the dissolved oxygen. Alternatively, you can reduce the nutrient solution to increase the concentration of dissolved oxygen. Experiment proved that every lower conductivity can increase the oxygen content of about 0.25 milli-West 0.1ppm.
deetcn2010-02-20 05:28:41 +0000 #3
oxygen pump oxygen; nutrient circulation and oxygen, etc..

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