湖北省长山药田间杂草发生规律与化学防治

Occurrence Regularity and Chemical Control of Weeds in Dioscorea batatas Field in Hubei Province

通过对湖北省几个长山药(Dioscorea batatas Decne.)主产区进行定点、定时田间调查,基本上摸清了危害长山药的主要杂草种类及其发生规律,并有针对性地进行了化学除草试验,明确了化学除草的最佳时期,并筛选出了毒性低、残留时间短的几种适宜于长山药田间施用的化学除草剂。

The species and occurrence regularity of the main weeds in Dioscorea batatas field in Hubei province were found out by fixed-spot and time field survey in the main long yam production area.The chemical weedicide test of were conducted accordingly to ensure the optimal time for chemical control of weed.Several chemical herbicide with low toxicity and short residual time suitable for application in long yam field.