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近几年来全国不少棉区在棉铃吐絮中后期试用乙烯利,促使棉铃早熟,效果明显。1977年开始上海郊县在棉花上试用乙烯利,面积约50亩,取得初步效果。1978年扩大到5000余亩,1979年有较大发展,施用面积约达45000亩,有的公社施用面积已占棉田的81.7%(表1)。的产量和品质,又能提早腾出土地,及时种上麦子,可以一举两得。有一部分作油菜秧田的棉田,要在9月底前拔杆,这时棉株上青铃还有一大半,喷乙烯利可使青铃早熟,挽回部分损失。又据试验,棉花上喷乙烯利后,籽棉的品级和单价都有提高(表2)。
In recent years, many cotton areas throughout the country in the trial of etoposide cotton boll floc, prompting cotton boll premature, the effect is obvious. Since 1977, suburban Shanghai experimented with ethephon on cotton with an area of about 50 mu and achieved initial results. In 1978 it was expanded to more than 5,000 mu. In 1979, there was a great development with an area of about 45,000 mu. Some communes have used 81.7% of the cotton fields (Table 1). Yield and quality, but also to free up land early, timely planting wheat, you can kill two birds with you. Part of the field for rapeseed cotton fields, to pull the bar before the end of September, when there is more than half of the cotton plant on the green bell, sprinkle ethephon blue bell premature, restore some of the loss. According to the test, after spraying ethephon on cotton, the grade and unit price of seed cotton have increased (Table 2).