The flowering and bolling period is the most critical period to determine the cotton yield and quality. The management objective of this period is to promote early ringing, ringing bells, and ringing large bells with large peach seal lines. It neither grows madly nor prematurely and coordinates nutrition. The relationship between growth and reproductive growth, and the relationship between individuals and groups, to achieve peach, peach, high yield, high quality. From the current appearance of cotton growth, we must pay close attention to the management of flower bell fertilizer and chemical control. 1. Reapply flowers and bells. The flowering and bolling period is the period when most of the fertilizer is needed. Fertilizer deficiency will easily lead to the shedding of a large number of bolls and premature aging. Excessive fertilization, especially excessive nitrogen fertilizer, will cause the cotton plant to grow in size and cause budding. The timing of flower and bell-fertilizer application is also very important. If it is too early or too early, it will affect the yield of cotton. Some farmers do not determine the timing of flower-bell-fertilizer application according to the growth of cotton, but instead perform top dressing according to time. This is unscientific. Poor growth of cotton field bells and fertilizers should be carried out during the flowering period. Generally, cotton fields are used to hold 1 to 2 young bells, and high-yield fields are sat in 1 to 2 bells of cotton. The end of application of phosphorus and potassium fertilizer sufficient cotton acres of acres of 15 to 20 kg of urea, the end of application of phosphorus and potassium fertilizer should be combined with the application of phosphorus and potassium fertilizers to meet the fertilizer requirements of cotton in order to achieve multi-peach, knot peach, stamina. 2. Reasonable control. According to the growth of cotton, fertilizer and water conditions, and climate characteristics, cotton chemical control should reasonably determine the period of chemical control and the dosage of chemical agents. The best timing for chemical control is to use drugs when there is a prolonged emergence. The cotton fields with sufficient fertilizer, abundant rainfall, and good growth should be reinstated, whereas they should be lightly controlled or not controlled. General cotton fields are controlled once in the early flowering period, using 1.5 to 2 grams per mu, or 6 to 8 milliliters of medicin, to control the plant height and the fruit branch in the middle and upper part to cultivate strong strains. In late July, for the prosperous cotton fields, the amount of the previous dose was once again controlled. After the topping is over, there are still 6 to 7 days of growth of cotton buds in the field, with 3 grams of shrinkage, or 12 milliliters of auxiliaries, to adjust the growth of the top fruit branches, to reduce the inefficiency of flower bells and axillary buds, and to improve the conditions for late ventilation and light transmission. , increase the rate of ringing, increase the boll weight, and promote precocity. Beverage Fiber,Polydextrose Fiber,Bulk Nutrients Polydextrose,Litesse Polydextrose Qingdao Bailong Huichuang Bio-tech Co., Ltd. , https://www.qdblcycn.com