杂草控制及适时处理，以防止其蔓延危害作物。
对杂草的精确确认是杂草控制项目成功的第一步。
Accurate weed identification is the first step in a successful weed control program.
对农民来说至关重要的是，他们用来控制杂草的除草剂不能损害他们的庄稼。
It is crucially important to farmers that the herbicides they use to control weeds not damage their crops.
农民蚂蚁分泌抗生素来控制其他可能充当“杂草”的真菌，并传播排泄物来给作物施肥。
Farmer ants secrete antibiotics to control other fungi that might act as "weeds", and spread waste to fertilise the crop.
加拿大帝国商业银行成功地使用了一种原产于墨西哥的以种子为食的象鼻虫来控制讨厌的帕特农杂草，这种杂草已知会对印度和澳大利亚的农业和人类健康产生负面影响。
CIBC successfully used a seed-feeding weevil, native to Mexico, to control the obnoxious parthenium weed, known to exert devious influence on agriculture and human health in both India and Australia.
当然，只有能够证明它们仅以目标杂草为食，生物控制剂才能安全释放。
Of course, biological control agents can safely be released only if it can be verified that they feed solely on the target weed.
控制豆秧周围杂草的生长，但要小心，以免弄伤豆秧。
Control weeds growing around bean plants, but be careful not to harm the plants.
苏西：我自然喜欢，但是那种遗传而来的防御能力可能会传给同科植物，然后生出需要更毒的除草剂才能控制的超级杂草。
Susie: Naturally, but those inherent defences could spread to plants in the same family and produce super weeds that would require even more toxic herbicides to control.
山羊的价值不仅体现在它能产奶和肉、帮助修复草原控制杂草，或者温和对待儿童。
Goats are valuable not just for their milk and meat, or for their ability to control weeds and help renew grasslands, or even for their ability to be gentle around children.
但是该体系鼓励农民改变长期以来的轮作制度和混合使用除草剂，在以前这些方法很好的控制了杂草。
But the system has also encouraged farmers to alter time-honored crop rotation practices and the mix of herbicides that previously had kept weeds in check.
专家们建议使用两种或两种以上的方法控制杂草。
Experts advise using two or more control methods to deal with weeds.
化学除草剂或类似玉米麸等自然手段可以抑制杂草的生长。作物密集种植也能作为一种自然控制手段。
Chemical weed killers or natural treatments like corn gluten can suppress weed growth. Dense planting of a crop can also act as a natural control.
然而，像绵羊或山羊之类的动物会吃杂草，因此它们可以起到生物控制作用。昆虫和其他生物也可以起到生物控制作用。
Yet animals like sheep or goats eat weeds, so they can provide a biological control. Insects and other organisms can also act as biological controls.
我们的传统做法是，杂草管理的主要目标是以如何控制杂草为中心的。
Traditionally, the major objective in weed management has centered on how weeds can be controlled.
如果完成了杂草的控制，对土壤的再次翻耕就不需要了。
Once weed control has been accomplished, further tillage of the soil is not recommended.
微灌的一个好处是控制杂草。
阿景观织物可用于有机覆盖物下，以提高控制杂草。
A landscape fabric may be used under the organic mulches to improve weed control.
没有一个花园仙子可以控制这些杂草！
There isn't a garden fairy alive who can control those weeds!
对杂草更为常见的处理方式是适度控制，这样土地就能用于种植。
A more common way to deal with weeds is to control them enough so that the land can be used for planting.
其它控制手段包括翻土、拔草或用地膜覆盖杂草。地膜一般由木屑、园林废弃物或其他材料制成。
Other controls include turning over the soil, pulling the weeds or covering them with mulch made of wood, garden waste or other material.
三嗪类除草剂是一类被广泛应用于农业上，来控制杂草生长的除草剂。
Triazine herbicides have been widely used to control the growth of weeds in agriculture.
红外线透性薄膜有黑色薄膜那种控制杂草的特性，在增加土壤温度方面介于黑色与透明薄膜之间。
The infrared-transmitting (IRT) mulches provide the weed control properties of black mulch and are intermediate between black and clear mulches in terms of increasing soil temperature.
研究目的为了控制农田杂草，加速土壤残留农药降解，生产无公害农产品是非常重要的。
OBJECTIVE in order to control weeds in field and quicken degradation of soil rudimental pesticide, it is very important to produce non-public farm products.
和农民种植抗草甘膦作物可以只使用一个较低的毒性除草剂来控制杂草。
And farmers planting glyphosate-resistant crops can use just one less-toxic herbicide to control weeds.
和农民种植抗草甘膦作物可以只使用一个较低的毒性除草剂来控制杂草。
And farmers planting glyphosate-resistant crops can use just one less-toxic herbicide to control weeds.
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