Organic Fertilizer without Organic Fertilizer Must be decomposed before application, especially after poultry manure is fermented, mixed with chemical fertilizer.

The rational use of chemical fertilizers must be measured and applied at a concentration. In particular, nitrogen fertilizer should not be excessive at one time. Foliar spray concentration should not be too high, urea for foliar fertilizer, the concentration should not exceed 0.3%, spray wet.

Organic fertilizers added to the soil with organic fertilizers have a strong adsorption capacity for cations, so that the concentration is not too high, and the buffer capacity of soil nutrients is increased, which can greatly reduce the occurrence of fertilizer damage.

The fertilization distance should be about 10 cm from the root of the crop and should be applied deeply. Immediately after dressing, cover the soil to prevent seedlings from burning and losing fertilizer. Soil dry topdressing requires timely irrigation, lowering the concentration, and avoiding the phenomenon of burning seedlings.

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