Unripe organic fertilizers carry a large number of pathogenic microorganisms and parasitic roundworm eggs. After being applied to farmland, some of them adhere to the crops to cause direct pollution, and some of them enter the soil to cause indirect pollution. In addition, organic fertilizers that have not been cooked before they are applied to the soil must be fermented before they can be absorbed and used by plants. Otherwise, they will not only produce high temperatures and cause burning, but will also release ammonia gas and cause poor plant growth. Therefore, be sure to fully decompose when applying organic fertilizer.
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