Cotton planting technology: how to fertilize cotton in flower and boll stage?

How to fertilize cotton in flower and boll period? please guide The flowering and boll stage is the key period for cotton to change from vegetative growth to reproductive growth gradually, and it is also the period when cotton needs most fertilizer. For cotton at the peak of flowering, because vegetative growth is still parallel to reproductive growth, partial application of nitrogen fertilizer at this time will lead to vigorous growth and crazy growth of cotton, not only aggravate bud and boll shedding, but also cause premature senescence. Therefore, part of the cotton in full bloom should be mainly applied compound fertilizer, 15~20 kg compound fertilizer with high content per mu, or a small amount of urea, phosphorus and potassium fertilizer. Especially for cotton fields planted with hybrid insect-resistant cotton, potassium fertilizer should be added, and the potassium fertilizer per mu should not be less than 15 kg. Fertilizers should be applied deeply at flowering stage, and ridging should be done. For cotton that has bolled, peach fertilizer should be applied. In places where hybrid insect-resistant cotton is planted, peach fertilizer should be applied twice. When there are 2~3 mature peaches per cotton plant, urea should be applied about 15 kg per mu. When there are about 10 mature peaches per cotton plant, urea should be applied about 15 kg again. When cotton has more peaches, urea application does not have to worry about excessive growth, because after cotton peaches, the direction of nutrient transport has shifted from branches and leaves to bolls, timely supply of sufficient nutrients, not only increase boll weight, seed finger weight, but also improve quality. But peach fertilizer can not be applied too late, too late application will only cause cotton greedy late maturity. Click for more cotton growing technology Click for more food crop growing technology