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防止西红柿落花落果,多年来一直采用2.4—D 浸花或涂花的办法,增产效果虽然显著,但由于对叶片有药害,使用时费工,不易大面积推广,目前国外已不再用。浙江农业大学和浙江化工学院首先合成“番茄灵”,由上海市正式投产推广。1983年我们进行多点试用,对西红柿嫩芽嫩叶药害较轻,用专制手持小喷雾器喷花,工效比2.4—D
To prevent the fall and fall of tomatoes, over the years has been the method of 2.4-D bloom or Tuhua, although the yield-increasing effect is significant, but because of the leaves have injury, the use of labor, difficult to promote large-scale promotion, the current foreign no longer use. Zhejiang Agricultural University and Zhejiang Institute of Chemical Technology first synthesized “tomato spirit”, officially put into operation by the Shanghai promotion. In 1983, we conducted more trial, on young shoots of tomato shoots lighter, with a small hand-held spray spray device, the efficiency of 2.4-D