Cotton needs a large amount of fertilizer, long growth period, and many fertilization times. Generally, for every 50 kilograms of lint produced, about 6-9 kg of pure nitrogen, 2-3 kg of phosphorus pentoxide, and 6-8 kg of potassium oxide are needed. Scientific and economic fertilization should be based on the basic fertilizer, supplemented by topdressing; organic fertilizer-based, supplemented by chemical fertilizers; increased nitrogen fertilizer, combined with the principle of phosphorus and potassium fertilizer. On the basis of the application of the base fertilizer (generally accounting for more than 60% of the total fertilization amount), according to the characteristics of fertilizer demand in different growth stages of cotton, it is necessary to master the “light application of seedling fertilizer, stable application of bud fertilizer, re-application of flower-bell fertilizer, and application of cover. The principle of top fat.
This article URL: Cotton formula fertilization principle
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