一家公司计划开发一种原型除草机，它使用带有光学传感器和微处理器的刀片，通过颜色的深浅区别杂草和作物。
A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by differences in shade of color.
反复的施除草剂后，杂草终于被消灭了。
With repeated applications of weedkiller, the weeds were overcome.
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.
为了消除这种杂草，生物学家建议用某种对人类和水生动物无毒的除草剂来处理受感染的部分湖泊。
In order to eliminate the weed, biologists proposed treating infested parts of the lake with a certain herbicide that is nontoxic for humans and aquatic animals.
除草剂的使用和集约型农业使得现在小麦和大麦麦田里几乎没有杂草。
The use of herbicides and intensive forms of agriculture means that fields of wheat and barley now have few weeds.
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.
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.
他们施用更多的除草剂对抗杂草会导致环境问题。
And their use of more herbicides to fight the weeds is sparking environmental concerns.
抗农达除草剂的种植体系帮助农民种植更多的玉米、大豆、棉花和其它作物，该方法可以减少耕作，并廉价和快速的清除杂草。
The Roundup Ready system has helped farmers grow more corn, soybeans, cotton and other crops while reducing detrimental soil tillage practices, killing weeds easily and cheaply.
一个生物技术的爱好者声称研究出了一种杂草,能抵抗全美最流行的除草剂Roundup。
One biotech hobbyist claims to have created a weed resistant to Roundup, America's most popular herbicide.
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.
生物测定结果表明：P 0603是一种广谱除草化合物，对多种阔叶杂草的防除活性高于磺草灵。
The bioassay results showed that new compound P0603 could control a broad spectrum of grass and broadleaf weeds.
除草及时进行人工除草。播后约7 ~10天出苗，出苗前后应注意防治杂草，条播者可进行行间中耕除草。
Manual weeding weeding time. About 7 to 10 days after sowing, seedling emergence, seedling emergence and attention should be paid to control weeds, drill can be inter row weeds.
在田间条件下，用苯磺隆加增效剂对麦田阔叶杂草的除草效果进行了试验。
Field experiments in wheat were conducted to determine broadleaf weed control efficacy of tribenuron plus synergist.
随着玉米播种面积的逐年扩大，玉米田杂草种类逐年增多，化学除草已占主导地位。
With the area expanding of the corn planting varieties of weeding in the cornfield increase year by year, chemical weed killers have played leading roles.
除草剂：用来杀死或抑制不想要的植物(如杂草)生长之物，常为化学药剂。
Herbicide: Agent, usually chemical, for killing or inhibiting the growth of unwanted plants (weeds).
水稻除草药肥是根据水稻的需肥规律和杂草发生特点开发的一种新型复合型药肥。
Fertilizer with pesticide is a new type of complex fertilizer with controlling of rice weed.
在杂草压力大的情况下，利用这些作物减少了除草剂使用量。
In situations where weed pressure is high, the use of such crops has resulted in a reduction in the quantity of the herbicides used.
掌握寒地水田杂草发生种类及优势种群，对制定杂草综合治理方案，科学选用化学除草及其配套技术具有指导意义。
Grap the cold-field paddyfield's characteristic and preponderant colony have the directive sense to constitute father's precept of weed, choose chemic weed scientific and its measure.
根据杂草在成熟马尼拉草坪中的巨大危害，阐述了化学除草在草坪杂草防除中的优点；
Because of great harm of weeds to mature Manila lawn, in this paper we explained many virtues of chemical weeding in lawn maintenance and its application.
传统的耕作方法将通过耕地来减少杂草的生长，但免耕农业选择使用除草剂来消灭杂草，以保护作物。
Conventional tillage controls weed growth by plowing and cultivating, but no-till farming selectively USES herbicides to kill weeds and the remains of the previous crop.
文章着重阐述了杂草的危害、苗圃常用的除草剂及用量、安全用药技术。
It is expatiated that harmfulness of weed, varieties and dosage of common weedicides, and use technique of weedicides in forest nurseries.
为了除掉花园里的杂草，我使用了除草剂。
实际上，美国种植了六年的抗除草剂作物，我们并没有看到抗除草剂杂草的出现。
In fact, after six years of planting herbicide-resistant crops in the US, we have not seen the emergence of herbicide-resistant weeds.
施用除草剂可减少免耕玉米田杂草种类，抑制杂草生物量的增长。
Herbicide could decrease weed species and inhibit biomass growth significantly in non-tillage field.
利用植物化感作用防治农田杂草，可以减少化学除草剂的使用，减轻环境压力，降低生产成本，达到增加作物产量等目的。
Applying plant allelopathy to inhibit weeds can not only efficiently reduce the use of chemical herbicide and cost, but also protect environment and improve crop product.
利用植物化感作用防治农田杂草，可以减少化学除草剂的使用，减轻环境压力，降低生产成本，达到增加作物产量等目的。
Applying plant allelopathy to inhibit weeds can not only efficiently reduce the use of chemical herbicide and cost, but also protect environment and improve crop product.
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