Cotton fertilization method
2022-08-26 04:03:43
Nitrogen fertilizer is generally applied in three applications, that is, 40% is used as base fertilizer, 40% is used as flowering fertilizer, and 20% is applied when starting to sit on peach. Phosphate fertilizer is better to be used as base fertilizer, and potassium fertilizer has better effect on base fertilizer and topdressing. Attention should also be paid to the application of zinc fertilizer and boron fertilizer.
I. Organic fertilizer Cotton field applies 2000-3000 kg of organic fertilizer per mu. For cotton fields with medium or above fertility, the fertilizer-retaining ability is strong. The organic fertilizer should be applied twice, that is, 45% of the total amount of organic fertilizer applied, and the rest is applied during the flowering and bolling period. A cotton field with a high fertility and a strong fertilizer-preserving capacity can be applied as a base fertilizer once a proper amount of nitrogen fertilizer. For cotton fields with poor soil fertility and poor fertilizer retention capacity, nitrogen fertilizer can be applied in three applications, namely 30% base fertilizer, 20% topdressing in bud stage and 50% topdressing in flowering and boll period.
Second, the potash fertilizer base fertilizer, topdressing each accounted for 1/2 application effect is good, can also be used alone as base fertilizer application. Potassium fertilizer should be determined according to soil fertility. On the basis of nitrogen fertilizer and phosphate fertilizer, medium-fertility cotton field applies 9-10 kg of potassium chloride or potassium sulfate per mu, and potassium chloride or potassium sulfate is applied per mu of cotton field of lower fertility. About 15 kg.
Third, boron fertilizer can be used as base fertilizer, seed fertilizer and top dressing. For cotton fields that are seriously deficient in boron, apply 250-500 grams per acre to planting ditch or transplanting ditch to make seed fertilizer. In the case of cotton and wheat interplanting, proper topdressing is required. In the seedling stage, 3.5 to 5 kg of urea per acre or 150 to 250 kg of decomposed manure.
4. Phosphate Fertilizer A sufficient amount of phosphate fertilizer can be used as a base fertilizer to meet the needs of the whole growth period of cotton, so it is generally no longer applied with phosphate fertilizer.
Source: Henan Science and Technology News
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I. Organic fertilizer Cotton field applies 2000-3000 kg of organic fertilizer per mu. For cotton fields with medium or above fertility, the fertilizer-retaining ability is strong. The organic fertilizer should be applied twice, that is, 45% of the total amount of organic fertilizer applied, and the rest is applied during the flowering and bolling period. A cotton field with a high fertility and a strong fertilizer-preserving capacity can be applied as a base fertilizer once a proper amount of nitrogen fertilizer. For cotton fields with poor soil fertility and poor fertilizer retention capacity, nitrogen fertilizer can be applied in three applications, namely 30% base fertilizer, 20% topdressing in bud stage and 50% topdressing in flowering and boll period.
Second, the potash fertilizer base fertilizer, topdressing each accounted for 1/2 application effect is good, can also be used alone as base fertilizer application. Potassium fertilizer should be determined according to soil fertility. On the basis of nitrogen fertilizer and phosphate fertilizer, medium-fertility cotton field applies 9-10 kg of potassium chloride or potassium sulfate per mu, and potassium chloride or potassium sulfate is applied per mu of cotton field of lower fertility. About 15 kg.
Third, boron fertilizer can be used as base fertilizer, seed fertilizer and top dressing. For cotton fields that are seriously deficient in boron, apply 250-500 grams per acre to planting ditch or transplanting ditch to make seed fertilizer. In the case of cotton and wheat interplanting, proper topdressing is required. In the seedling stage, 3.5 to 5 kg of urea per acre or 150 to 250 kg of decomposed manure.
4. Phosphate Fertilizer A sufficient amount of phosphate fertilizer can be used as a base fertilizer to meet the needs of the whole growth period of cotton, so it is generally no longer applied with phosphate fertilizer.
Source: Henan Science and Technology News
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