单词 | residual herbicide |
释义 | > as lemmasresidual herbicide residual herbicide n. a herbicide that remains in the soil so that weeds can be controlled over a period of time. ΚΠ 1951 L. L. Pyenson Elem. Plant Protection xxii. 392 The pre-emergence contact and residual herbicides. 1972 Weed Sci. 20 295/2 The plot areas were reseeded to ‘Neal’ oats as a bioassay crop to detect any residual herbicide in the soil. 1990 R. Staines Market Gardening viii. 112 Residual Herbicides..are so called because the residues stay in the soil, and they can work in a variety of ways. They may prevent germination of weed seedlings. < as lemmas |
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