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新的棉花去蕾药剂具有提高棉花品质,去蕾效果稳定,增产和省工省时等优点。为使其尽快用于棉花大面积生产,1988年我们利用系统工程原理,进行深入研究,为化学调控棉花成铃的规范化栽培提供科学依据。材料与方法供试药剂为S_1A_(11),品种新棉291。试验地前茬麦棉套种。0—20厘米耕层含有机质1.124%,全氮0.0627%,碱解氮57.99ppm,速效磷11.56ppm,速效钾117.41ppm。麦棉套种,小麦6月6日收获,单产175公斤。棉花4月19日播种,喷药后亩追尿素11.4公斤,其它按照丰产田管理。试验选择S_1A_(11)的浓度(x_1)、喷药时期
The new cotton to Lei medicine has the advantages of improving cotton quality, to the bud effect is stable, increase production and save time and labor. In order to make it as soon as possible for large-scale cotton production, in 1988 we use the principles of systems engineering, conduct in-depth study for the chemical regulation of cotton bolls to provide a scientific basis for standardized cultivation. MATERIALS AND METHODS The test agent was S_1A_ (11) and the variety New Cotton 291. Test before crop cotton interplanting. 0-20 cm tillage contains 1.124% organic matter, total nitrogen 0.0627%, alkali hydrolysis nitrogen 57.99ppm, available phosphorus 11.56ppm, available potassium 117.41ppm. Cotton intercropping wheat harvest on June 6, yield 175 kg. Cotton sown on April 19, after spraying mu mu urea 11.4 kg, the other in accordance with high yield management. Test choose S_1A_ (11) concentration (x_1), spraying period