What is the application rate of medium and micro fertilizer for various crops? The amount of soil applied by medium-quantity fertilizer is roughly equivalent to that of NPK fertilizer, and even more, and the application amount of trace element fertilizer is less. For example, the application amount of most field crops is only 1~2 kg of zinc sulfate, and borax is only 0.5~1 kg. Economic crops such as fruit trees and vegetables are higher, generally not more than 3 to 5 kg per mu. Therefore, before the sowing or transplanting, the micro-fertilizer is mixed with the moist dry soil or the decomposed organic fertilizer, and then mixed with the base fertilizer or applied. In addition, most of the micro-fertilizer and phosphate fertilizer will form a poorly soluble substance, which reduces the fertilizer effect, so do not mix them together.
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