The Greenhouse Fertilizing Management in Winter

The organic fertilizer should be used after becoming thoroughly decomposed. The fresh cow dung and PM will produce a large number of organic acid, ammonia gases, hydrogen sulfide, and NOX during the decay process. These gases not only will damage the vegetables roots, but also cause poisoning from the accumulative ammonia and NOX in the whole greenhouse.
Fertilizing should be done according to the soil conditions. The commonly used fertilizers are potassium chloride, potassium sulfate, ammonium chloride, and ammonium sulfate. They have been absorbed by very few, when they were all applied into the soil, dissociating the sulphate ions and chloride. In the common fertilized fields, the fertilizer will flow away with the water, which has greatly reduced the harm. But in the greenhouse, the fertilizer often accumulated in the soil, which has increased the acidity of soil. Therefore, the acid soil couldn’t fertilize. On the alkaline soils, the calcium magnesium phosphate and lime nitrogen is not good for the crops.

Topic：
E-mail：
Message：
Name：

Topic：
E-mail：
Message：
Name：