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- Chemistry control weeding 化学除草
- The present results show that chemical combined mechanical methods control weed well than other practices. 现有的研究表明，化学与机械结合的防治措施能更好地控制杂草；
- Moreover, EM application could control weed germination and growth to some extent. EM的应用在一定程度上可以抑制杂草的发生和生长。
- In this experimentation the difference of tolerance, the cell, the Als and the effect of control weed were studied by the different variety of maize treated by the mixture of nicosulfuron and organophosphorous insecticide. 为研究磺酰脲类除草剂与有机磷杀虫剂混合使用时产生的药害及药效，本试验选择烟嘧磺隆与对硫磷作组合处理，研究了不同玉米品种在该处理下的耐性差异、细胞水平上的差异、酶水平上的差异和除草效果。
- This paper also introduces two important wet end chemistry controlling systems named WIC and Kajaani. 本文主要对近几年来湿部化学参数测量及控制技术的新进展进行了综合介绍。
- Irrigation has been used where needed and modern chemical to control weeds. 需水的地方有了灌溉设施，并且采用了现代化学药剂以控制杂草。
- We use natural, environmentally-friendly methods to control weeds, insects, and other harmful predators. 我们使用对环境无害的天然方法来抑制杂草生长、消灭害虫和预防其他危害作物的掠食动物。
- This tillage practice was done by farmers to control weeds and conserve moisture during the fallow period before the wheat crop. 农民用这种耕作措施除草并在种麦前的休闲期保墒。
- Goats are valuable not just for their milk and meat. Or for their ability to help renew grasslands and control weeds. 山羊不只是羊奶和羊肉有利用价值，它们的能力不只体现为可以修复草地，控制杂草，
- We have three periods of chemistry a week. 我们一星期三节化学课。
- The scientist probed into the secrets of chemistry. 这位科学家探索了化学的种种奥秘。
- This method covers soil body with plenty of crop stalk and deserted stubble, simplifies cultivation to the degree in which seeds can pullulate, and controls weed, disease and vermin by pesticide. 它是一种用大量秸秆残茬覆盖地表,将耕作减少到只要能保证种子发芽即可,并主要用农药来控制杂草和病虫害的耕作技术。
- No-till farming is more practical with herbicide-tolerant crops, which allow farmers to control weeds with herbicides rather than tillage. 不整地耕作法特别适用于除草剂耐受作物，因为农夫可省略整地步骤，直接以除草剂来控制杂草。
- Chemistry was her favourite subject at school. 她上学时最喜欢化学。
- No one can cope with him in Chemistry. 在化学方面，谁也比不上他。
- Goats are raised not just for their milk and meat, and their ability to control weeds and help renew grasslands. They can also be valuable for their hair. 养山羊不仅是为了它的奶和肉,还有它们控制野草、更新草地的能力。他们的毛也非常有价值。
- I am not good at organic chemistry. 我的有机化学学得不好。
- We will do a Chemistry experiment this Friday. 这个周五我们要做化学试验。
- Echinochloa crusgalli is one of main chemical control weeds in paddy fields.It is one of the key factors of rice stability yield to control effectively barnyard grass. 摘要稗草是直播稻田及水稻轻型栽培的主要杂草，控制好稻田稗草是直播田稳产的关键因子之一。
