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乙烯利能刺激雌花形成,西葫芦、黄瓜等在苗期(2～6片真叶)喷施乙烯利可以提高产量,但使用不当会产生药害,造成减产甚至绝产。笔者曾遇到乙烯利在西葫芦上使用造成药害的事例,并成功解除药害。一、基本情况 2001年2月10日,一菜农来咨询,笔者实地调查了解到,该菜农种植的西葫芦采用育苗移栽的方法,2000年12月上旬播种,定植后两片真叶时,使用800×10_(-6)乙烯利全株喷雾。处理后西葫芦一直不能形成主茎,在两片子叶中间长出3～5个细弱的小芽,生长迟缓。而同期种植,未使用乙烯利的西葫芦已进入开花结果期。二、处理方法每株西葫芦只保留一个较壮的芽,其余全部去掉,用0.01%天丰素(油菜素内酯,江门农药厂生产)5 000倍,植健宝(山西精研化工厂生产)1 500倍混
Ethephon can stimulate the formation of female flowers, squash, cucumbers and other seedlings (2 to 6 true leaves) spraying ethephon can increase the yield, but improper use will produce phytotoxicity, resulting in reduced production or even abortion. I have encountered ethephon in the case of the use of squash caused injury, and the successful lifting of injury. First, the basic situation February 10, 2001, a dish of farmers to consult, the author learned on the spot, the vegetable farmers planted zucchini seedlings transplanting method, sowing in early December 2000, after planting two true leaves, the use of 800 × 10 _ (- 6) ethephon whole plant spray. Zucchini treatment has been unable to form the main stem, in the middle of two cotyledons grow 3 to 5 weak small buds, growth retardation. The same period planted, not the use of ethephon zucchini has entered the flowering period. Second, the treatment of each plant remained only a zucchini stronger buds, the remaining all removed, with 0.01% Tian Feng Su (brassinolide, Jiangmen Pesticide Factory production) 5 000 times, Jian Jian Bao (Shanxi refinement chemical plant production 1,500 times mixed