落叶剂 Defoliant
（重定向自Chemical defoliants）
![越南战争期间，美军的一架直升机在湄公河三角洲喷洒化学落叶剂](/Images/godic/202501/04/Defoliation_agent_spraying1950.jpg")
落叶剂是一种植物生长调节物质，它能够促使植物的叶子提早脱落，有利于农业的机械化。例如氰氨化钙等物质的粉尘可使棉花的叶子提早脱落。美国曾用于越南战争。
Chemical defoliants
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英语百科
Defoliant 落叶剂
（重定向自Chemical defoliants）
A defoliant is any chemical sprayed or dusted on plants to cause its leaves to fall off.
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