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Fertilizers for cotton
Cotton is a full-nutrition crop, but it is also a crop that requires a large amount of fertilizer and requires a relatively high fertilization technology. According to the study, for every 100 kilograms of lint produced, 10 to 18.5 kilograms of nitrogen, 3.5 to 6 kilograms of phosphorus (P2O5), and 13 to 16.5 kilograms of potassium (K2O) are needed. The ratio of nitrogen, phosphorus, and potassium is roughly 3:1. : 3; need to absorb 1.29 kilograms of magnesium, sulfur 1.86 kilograms; every production of 100 kilograms of seed cotton, need to absorb 36 grams of calcium; cotton to form 1 tonne of dry matter, need to absorb 106 grams of iron, 15 grams of boron, 14 grams of manganese, 16 grams of zinc 0.77 grams of molybdenum.