棉花使用植物生长调节剂,不仅能抑制营养生长,防止旺长,而且促进生殖生长,减少蕾铃脱落。 1.棉株旺长的时间 据观察,棉株旺长的时间,从开始开花到4、5果枝第一果节开花,平均单株每天开花达到1个以上之前的初花期。这段时间大约有半月左右,是棉株一生中生长最快的时期。 2.使用时期 植物生长调节剂控制棉株旺长的使用时间,应在4、5果枝第一果节开花之前,1、2果枝第一果节开花时。不要使用过早或过晚,过早棉株控的过很,过晚起不到控旺作用。 Plant growth regulators used in cotton, not only inhibit vegetative growth, prevent the growth of long, but also promote reproductive growth and reduce the loss of the buds. 1. Long cotton plantings It is observed that the cotton plants grow for a long time, from the beginning of flowering to the first fruiting 4, 5 fruiting branches of the flowering, the average flowering per plant to reach more than one before the beginning of flowering. About half a month or so during this time is the fastest growing period of cotton plant life. 2. The use of plant growth regulators during the control of the long use of cotton plants should be 4, 5 fruit branch first fruit before the flowering, 1, 2 fruit branch when the first fruit flowering. Do not use too early or too late, premature cotton plant control is too late to control the role of Wang too late.