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乙烯利是一种生长调节剂,在高梁挑旗或灌浆初期,全株或在穗部喷洒,有提早成熟和增产的作用。据我所1976年试验,用1,000ppm的乙烯利在挑旗期喷洒,亩产1,201斤,对照亩产仅807斤,增产48.7％,提早成熟8—9天。1976年是低温冷害年,对照没有成熟好,所以增产效果特别显著。同年在林甸县东风基点大面积示范,提早成熟7天,增产12.8％。乙烯利促熟增产的效果是显著的。但必须掌握好如下几个技术环节: 一、浓度要适当。一般使用的浓度以1,000ppm为最适宜。浓度过大抑制营养体的生长,影响其产
Ethephon is a growth regulator, in sorghum flag or filling early, whole plant or in the spike spray, the role of early maturity and yield. According to my 1976 test, 1,000 ppm of ethephon was sprayed during the flag-cutting period, yielding 1,201 kg per mu and controlling only 807 kg per mu, an increase of 48.7% and an earlier maturity of 8-9 days. The year of 1976 is chilling injury year, the control is not mature, so the yield increase effect is particularly notable. In the same year in Lindian County, a large area demonstration of the east wind base, matured seven days earlier, an increase of 12.8%. The effect of ethephon to boost yield is significant. However, we must grasp the following several technical aspects: First, the concentration should be appropriate. The most commonly used concentration of 1,000ppm is the most appropriate. Concentration is too large to inhibit the growth of vegetative and affect its production