control weed effect 除草效果
percentage of weed control 杀草率
weed control equipment 除草机具 ; 除草机械
preemergent weed control 作物苗前杂草防治
Principle of Weed Control 杂草治理的原理
weed-control method 杂草防除法
control of weed 杂草防治
To control weed in tobacco field more effectively, field experiments were carried out with 3 types of herbicidal film after flue-cured tobacco transplanting.
为更有效地防除烟田杂草,在烤烟移栽大田后采用3种除草膜进行了烟田除草试验。
It found that many farmers have better harvests, better weed control and fewer losses from insect damage compared to traditional crops.
VOA: special.2010.04.27
The study found that many farmers have better harvests, better weed control and fewer losses from insect damage compared to traditional crops.
VOA: special.2010.05.18
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