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棉花在早发、稳长、早结桃的前提下,只要不遭虫害,高产的关键是花铃肥的施用。适时适量地施好花铃肥,能够充分利用伏天温高、光照足的有利时机,使棉株多增枝节、多长早桃,一般比施肥不适时和不施花铃肥的增产二至三成以上。但由于不同年份之间天气、茬口、苗蕾肥用量以及棉花本身生长发育等情况不同,各地在花铃肥施用的时间上差异较大。尤其是生产责任制以后,不同农户种植的茬口、品种、密度和前期施肥水平不同,花铃肥的施用时间、用量就更难掌握。根据我们的调查和总结多年的实践经验,我们认为,在各种不同情况下,只要以看桃为前提、看色为依据、桃色结合就能施准花铃肥。
Cotton in the early onset, stable, early peach under the premise, as long as not pests, the key to high yield is the application of flower boll fertilizer. Appropriate amount of time to give the role of flower boll fertilizer, can make full use of the V days of high temperature, light sufficient time, so that more cotton stalks, how long early peach, generally not fertilizing fertilizer and no flower boll yield 20% to 30%. However, due to the different years between the weather, stubble, the amount of seedlings buds and the growth and development of cotton itself is different, around the time in Huapingfei differences in the use of large. Especially after the production responsibility system, the stubble, variety, density and the level of the previous fertilization planted by different farmers are different, and the application time and dosage of the bollworm fertilizer are more difficult to grasp. According to our investigation and summary of many years of practical experience, we believe that in various circumstances, as long as the peach as a precondition, look at the color as the basis, the combination of peach color can be fertilized boll fertilizer.