| 单词 | mcpa |
| 释义 | > as lemmasMCPA MCPA n. [ < m- (in methyl n.) + c- (in chloro- comb. form2) + p- (in phenoxy- comb. form) + a- (in acetic adj.)] (4-chloro-2-methylphenoxy)acetic acid, C9H9ClO3, or one of its salts or esters, used as a selective herbicide. Π 1946 G. Blackman in Jrnl. Ministry of Agric. 53 17 These names..are unlikely to be remembered, so that the abbreviations MCPA and DCPA can perhaps serve better. 1958 New Biol. 26 45 The selective growth regulating herbicides such as M.C.P.A...and 2,4-D..are the most commonly used herbicides on pastures and the buttercup species differ in their sensitivity to these. 1971 Arable Farmer Feb. 12/2 MCPA, discovered during the war and still widely used alone or in mixture for cereals. 1991 Courier-Mail (Brisbane) 19 Jan. (Weekend Suppl.) 15/7 The chemicals you have used all contain the active ingredient MCPA, which is recognised as the most effective against clover. < as lemmas |
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