At the moment, it is the time when cotton is ready for planting. Many farmers believe that the fertilization techniques for base fertilizer and nutrient seedlings in cotton fields are not well understood. To this end, the reporter interviewed senior agronomist and cotton expert Yu Hongzhang. Yu Hongzhang said that although the fertilization methods and cotton fronts are inconsistent throughout the country, the specifics are as follows:
Nutrient seedling nursery bed seedlings: early processing of human fecal urine and decomposed organic fertilizer, appropriate application of compound fertilizer, generally 10 square meters of seedbed nitrogen, phosphorus, potassium content of 45% of the compound fertilizer 1 to 1.5 kg, should not Urea is used as a base fertilizer for the seedbed.
Base fertilizer for cotton field: First, increase all kinds of organic fertilizer, or bio-organic compound fertilizer; Second, do formula fertilization, balanced fertilization, nitrogen, phosphorus, potassium according to the ratio of 3:1:3 formula; third is insect resistance The cotton should be increased with potassium fertilizer. The base fertilizer should be no less than 30 pounds per mu, and apply 1 to 2 pounds of zinc fertilizer, holding 0.8 pounds of boron. Fourth, the appropriate amount of fertilization should not be blindly pursued. Yuan compound fertilizer can be 50-60 pounds; five changes to spread fertilization material for the ditch or application of acupuncture points, cotton seedling roots and fertilizers to maintain a certain distance.
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