defoliant

过去分词：

动词过去分词: defogged

更多词形：

名词: defogger | 动词过去式: defogged | 动词过去分词: defogged | 动词现在分词: defogging | 动词第三人称单数: defogs |

单词例句：

The crash had spilled a noxious defoliant into the planet's ecology, ravaging the native flora.

这次坠毁将一种有害的落叶剂洒入星球的生态系统中，破坏着当地的植物群。

cotton defoliant

棉花脱叶剂

Chlorates are a group of toxic substances with significant ecological risk.Last century, sodium chlorate was used to be as non-selective contact herbicides and defoliant in agricultural history.

氯酸盐是一类毒性强氧化剂，上个世纪曾被作为非选择性除草剂和脱叶剂在农业生产中大量施用，近年来，氯酸钾作为龙眼产期调控剂也在反季节龙眼生产中大量应用。

Defoliant: Chemical dust or spray applied to plants to cause their leaves to drop off prematurely.

落叶剂:落叶剂是一种化学粉剂或喷洒剂，施于植物以使树叶提早掉落。

Suttle JC. Effect of the defoliant thidiazuron on ethylene production. Plant Physiol, 1983, 72(S): 121

韩碧文,李丕明,奚惠达等编著.棉花应用乙烯利催熟技术及其原理.北京:农业出版社,1983

Defoliant: a chemical sprayed or dusted on plants to cause the leaves to fall off

落叶剂,一种化学药剂,喷洒在植物上可使叶脱落

Litigation about Agent Orange, a defoliant and herbicide used by American forces in the Vietnam war, has provided the most extensive judicial discussion of toxic causation.

关于药剂橙（一种美国部队在越南战争中使用的落叶剂和除劳剂）的立法，已经提供了最广泛的有毒物质因果关系的司法讨论。

pre-harvest defoliant

收获前落叶剂

Also used for control of aquatic weeds, and as a defoliant for cotton and sunflower.

还可作为向日葵、棉花等作物的催枯脱叶。