缩节安是一种新型生长调节剂。1981～1984年,我们研究了缩节安对地膜覆盖棉和育苗移栽棉的调控效应及经济效益,取得了良好的结果。 缩节安的应用效果 1.在不同栽培方式下应用缩节安的效果。试验结果表明,地膜棉初花期喷施100ppm缩节安(有效剂量为2.5克/亩),株高较对照降低12.26％,主茎节距较对照缩短17.76％,顶、中、下部的果枝长度分别比对照降低64.45％、48.17％、32.77％。前者呈宝塔型,后者呈伞型。移栽棉初花期喷施一次100ppm缩节安(剂量2.0克/亩),也表现为株高比对照 Condensation is a new growth regulator. From 1981 to 1984, we studied the regulation effect and economic benefit of dian-jian-an on mulching cotton and transplanting cotton seedlings, and achieved good results. Reduced security application effects 1. In different cultivation methods, the application of reduced security effect. The results showed that the initial mulching speed was 100ppm, the effective dose was 2.5 g / mu. The height of the mulching cotton was 12.26% lower than that of the control. The pitch of the main stem shortened 17.76% Respectively, lower than the control 64.45%, 48.17%, 32.77%. The former is a pagoda type, which is umbrella type. The first flowering of cotton transplanting spraying a 100ppm shrinking safety (dose 2.0 g / acre), also showed a higher plant height than the control