30%飞达草甘膦可溶性粉剂防除苗圃杂草试验

Trial on Weed Control by 30% "Feida" Roundup Soluble Powder in Nursery

分析了在苗圃地使用30%飞达草甘膦可溶性粉剂防除杂草试验,结果表明:使用30%飞达草甘膦可溶性粉剂的最佳剂量丁香苗圃地为3.0kg/hm2,除草效果可达到80%以上;青海云杉和祁连圆柏苗圃地为3.7 kg/hm2以上,除草效果可达到70%以上.河西地区使用30%飞达草甘膦可溶性粉剂防除苗圃杂草,全年施药2～3次即可达到理想效果.施药除草必须严格按照操作规程进行,以取得最大防除效果,并避免发生药害.

Analyzed the control effects of weeding of 30 % “Feida” roundup soluble powder in nursery. The results indicated that its optimum usage quantity is 3.0 kg/hm2 in the land of Syzygium aromaticum, above 3.7 kg/hm^2 in the land of Picea crassifolia and Sabina przewalskii and the control effect of weed reached over 70%. To use medicament of 30% “Feida” roundup .soluble powder 2-3 times annually can obtain ideal control effect in nursery of Hexi district. But the usage of medicament must keep to the operating regulation lest the occurrence of poisonous damages.