When the and formed heads, then the weeds also appeared.
到长苗吐穗的时候, 稗子也显出来。
When uprooted poisonous weeds can be used as fertilizer.
毒草拔了能肥田。
Eliminating ill weeds destroyed or badly damaged by fire.
消灭危害性大的杂草被火毁灭或者严重损害。
Allelopathy of wheat extraction to the growth of two weeds
小麦提取物对反枝苋、繁缕生长的化感效应研究
Use work in the fields of artificial uprooting weeds road.
利用工作道下田人工拔除杂草。
The backyard of our house has a luxuriant growth of weeds.
我们家得后院长了一大堆杂草。
Study on Chrysomelidae for the biological control of weeds
叶甲科昆虫在杂草生防中的研究与利用
differentiate between fragrant flowers and poisonous weeds.
辨别香花毒草
She spend the afternoon pull up the weeds in the flowerbeds.
她用整个下午的时间拔除花坛中的杂草。
Weeds were well controlled in the trials of GM rape and beet.
在转基因油菜和甜菜的试验中, 杂草得到有效控制。
The Applications of Insects in the Biological Control of Weeds
昆虫在杂草生物防除中的应用
Controlling techniques of weeds in autumn seeding wheat fields
秋播麦田杂草防除技术探讨
Also bare patches of ground leave room for weeds to take root.
而且，没有覆盖的菜田为杂草扎根生长创造了条件。
It is not the business of the botanist to eradicate the weeds.
除杂草不是植物学家要干的事。
Coal was effective on annual weeds with grade over 8 in 70 DAT.
果尔对一年生杂草得除草效果在处理后70天达8级以上。
However, many herbicides are losing their ability to kill weeds.
不过，许多除草剂正在丧失杀死杂草的能力。
They can eat weeds and small organisms, like plankton and algae.
它们可以吃水草和小的生物，比如浮游生物和藻类。
Summer and autumn harvest, weeds to the net, use fresh or dried.
夏, 秋季采收, 去净杂草, 晒干或鲜用。
A Simple Bioassay Method for Screening Pathogenic Fungi to Weeds
一种筛选稗草生防潜力菌的简易生测方法
Braid is the excellent choice when fishing thick grass or weeds.
当你在很厚的水草中做钓的时候，编织线表现非常完美。
Study on allelopathy of several common weeds on Ligularia sagitta
几种常见杂草对箭叶橐吾的化感作用
Resistance of weeds to certain herbicides is beginning toshow up.
杂草对某些除草剂得抗药性已显现出来。
With repeated applications of weedkiller, the weeds were overcome.
经过反复施用除草剂，杂草得以彻底根除。
A comprehensive study on controlling weeds of artificial grassland
人工草地杂草防除的综合研究
Induction effect of some weeds on the allelopathy of rice varieties
杂草对不同水稻品种化感作用的诱导效应
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