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一、试验方法“缩节安”是我国1980年新合成的一种棉花生长调节剂。我县81～83年从河北省沙城农药厂引入一批新产品,在永兴公东岸三队示范户李宗平的棉地上进行了小面积试验,82年在杨柳津等大队进行多点示范,83年全社进行大面积推广。其结果对棉花生长调节作用很佳,深受群众欢迎。具体做法是:在同一块棉地上划分四个面积相等的试验小区(0.092亩),重复一次,供试品种赣棉78—7,四周留有保护行,在同样的田间管理条件下,分别进行三个不同药液比例即50、100、150ppm 和清水(ck)作对照,喷药时间均在6月4日盛蕾初期喷一次。二、试验结果试验结果表明,喷药的平均比喷清水的株高矮17厘米,主茎节距缩短2.1厘米,果
First, the test method “Reduced safety” is China’s newly synthesized in 1980 a cotton growth regulator. From 1981 to 1983, a series of new products were introduced from Shacheng Pesticide Factory in Hebei Province. A small area test was conducted on the cotton field of Li Zongping, a model household of three teams in the east coast of Yongxing Gong. In 82 years, a number of demonstration projects were carried out in the brigade of Yangliujin, 83 years, the whole community to promote large-scale. The results of the regulation of cotton growth is very good, welcomed by the masses. In practice, four test plots of equal size (0.092 mu) were divided on the same paddy field. The test plots were repeated with cotton boll lines 78-7, surrounded by protective lines. Under the same field management conditions, The proportion of three different liquid that is 50,100,150ppm and water (ck) as a control, spraying time are June 4 early Lei spray once. Second, the test results The test results show that the spraying of the average spraying water than the plant height of 17 cm, shorten the main stem pitch 2.1 cm, fruit