| 1. | No single herbicide will control all weeds .
单独一种除草剂决不能防除所有的杂草。 |
| 2. | He attributed this to a dilution effect of the herbicide .
他把这归因于除草剂的稀释效应。 |
| 3. | Resistance of weeds to certain herbicides is beginning to show up .
杂草对某些除草剂的抗药性已显现出来。 |
| 4. | Persistence of the herbicide in the mud was irrespective of formulation .
除草剂在底泥中的持久性与剂型无关。 |
| 5. | Herbicides are difficult to apply horizontally over long distances .
要在长段距离的水平方向施用除草剂也很困难。 |
| 6. | Phenylcarbamate herbicides were among the earliest herbicides developed .
氨基甲酸苯酯除莠剂是发展最早的一种除莠剂。 |
| 7. | Arsenic is widely associated with the manufacture of herbicides and pesticides .
砷广泛地应用于除草剂和杀虫剂的制造中。 |
| 8. | Herbicides provide a cheaper and more effective means of controlling weeds than cultivation .
除草剂比清耕消除杂草成本低，效率高。 |
| 9. | A bare fallow can be used with a herbicide such as glyphosate or amitrole .
对荒秃的休耕地可以使用象镇草宁或杀草强一类的混合除草剂。 |
| 10. | Among the many regulatory substances in use we have controllable and selective herbicides .
在所有的许多调节物质中，有控制性的和选择性的除草剂。 |
