南疆棉区棉花脱叶剂的筛选

对4种棉花脱叶剂进行了脱叶剂与乙烯利混配处理棉花试验,研究脱叶剂不同处理脱叶效果及其对棉花衣分、纤维长度、产量的影响.结果表明,脱落宝和瑞丰脱叶剂的脱叶、催熟效果较缓和,对品质影响较小,真功夫、HARVADE和氯酸镁的脱叶、催熟效果好,但对棉花品质有一定的影响,特别是氯酸镁表现特突出.建议单独使用真功夫脱叶剂.

Screening of Cotton Fisleave Agent of Cotton Area in the South of Xinjiang

On the basis of 4 kinds of cotton disleave agent, the test for disleave agent and the disleave agent mixed with ethrel to treat the cotton was conducted. The effect of disleave treated with different defoliations and its influence on ginning outtum, fibre length and yield of cotton were analysed. The analytical results show that the disleave and accelerating effect of Tuoluobao and Ruifeng disleave agent is more moderate, the effect they have on the cotton quality is less, the disleave and avvelerating effect of Zhengongfu, HARVADE and magron is better. But they have a certain influence on cotton quality, especially magron does. The authors proposed that Zhengonfu disleave agent be applied alone.