Fertilizer suitable time for organic fertilizer
Organic fertilizers include manure and green manure, preferably applied before sowing so that they can be well decomposed and mineralized. In warm and humid areas, as time permits, it is better to turn in 20-30 days before planting, so that when the crop grows vigorously, there will be sufficient supply of nutrients. In northern China, organic fertilizers require more time to decompose and mineralize, but sometimes they cannot be applied on cornices. Whether in the South or North of China, organic fertilizers are usually piled up for a period of time in advance so that their nutrient release can be consistent with the crop's need for fertilizer. In fact, the timely application of organic fertilizers to meet the nutrient requirements of crops is difficult, and it is best to use chemical fertilizers, especially nitrogen fertilizers.
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