ANTIDOTES OF 2,4-DICHLOROPHENOXYACETIC ACID FOR SUNFLOWER

摘要

FIELD: agriculture. ^ SUBSTANCE: invention is related to chemical biologically active substances. As substances that reduce negative effect of herbicide of 2,4-dichlorophenoxyacetic acid at sunflower plants, they proposed N-substituted 4-methyl-2,6-dichloronicotinoylurea with formula of 1-2. Task of the present invention consists in expansion of range of biologically active substances produced synthetically for their application in agriculture as antidotes of 2,4-D. It is achieved by application of N-substituted 4-methyl-2,6-dichloronicotinoylureas by means of treatment of damaged sunflower plants 5 days after application of herbicide. ^ EFFECT: expanded range of biologically active substances. ^ 1 tbl, 4 ex