The present invention provides a liquid composition for defoliation of crop plants comprising a metal chlorate and alkali metal halide. The invention also provides a process for preparing the liquid composition for defoliation of crop plants and a 5 method of defoliating crop plants.本發明提供一種用於作物植物脫葉的液體組成物,包括金屬氯酸鹽以及鹼金屬鹵化物。本發明也提供一種用於製備用於作物植物脫葉的液體組成物的方法以及脫葉作物植物的方法。