One of the basal fertilizers for cotton field is to increase various types of organic fertilizers or bio-organic compound fertilizers; the second is to make formula fertilization and balanced fertilization; nitrogen, phosphorus and potassium are formulated according to the ratio of 3:1:3; and the third is insect-resistant cotton. To increase potassium fertilizer, base fertilizer per acre of not less than 15 kg, and apply 0.5 to 0.7 kg of zinc fertilizer, holding 0.4 kg of boron; four is the amount of fertilization, should not blindly pursue the number of high content of ternary compound fertilizer per acre 25 to 30 kilograms can be; five is to change the spread of fertilization material for the ditch strip application or acupuncture points, cotton seedling roots and fertilizers to maintain a certain distance.
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