Why no effect of fertilizer applied in corn fields
Mr. Chen from Jinzhou City, Liaoning Province, asked that the effect of applying the fungus fertilizer on greenhouse vegetables he planted was good, but there was no effect when applied in corn fields. Why is this?
Answer: The main effect of the fungus fertilizer is to activate soil nutrients or turn nitrogen in the air into nitrogen that the crop can absorb. However, its role in nutrient supply is limited. Greenhouse soil has high fertility, and organic fertilizer and chemical fertilizer are used in large amounts. After fertilization, the amount of chemical fertilizer is small, but it is not harmful to the crop in the short term. The field soil fertility is low, and the role of the fungus fertilizer is limited. The light application of the fungus fertilizer is not enough. This example shows that although the fungus fertilizer is good, it cannot replace chemical fertilizers.
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