MD15C2 - The method of controlling undesirable vegetation - Google Patents

Abstract

Utilization: agriculture, chemical methods of protecting plants. the main idea of the invention: the plants or the soil on which plants are growing with a derivative of pyridin with the general formula (1) in which R1 represents methyl; R2 represents ethyl, izopropyl, A represents COOR3, CONHOH, 1,3-oxazolini-2; R3 represents hydrogen, C1-C3 alkil, cianometyl, 2-chloralil, 2-propinil, 1,1 diamthyl-2-propinyl, 2,2,2-tricloretil, furfuril, the cation chose from natriu, calciu, izopropilamoniu, dizopropilamoniu, taloamoniu, B represents hydrogen, COR4, in which R4 represents methyl, p - clorophenil, p - nytrophenil, p - metoxiphenil on condition of when B represents COR, A represents COOR3 in which R3 differes from hydrogen or salt cation generator, W represents hydrogen, Z doesn't constitute izopropilamine group; W represents hydrogen or sulf; V represents hydrogen, C1-C3 alkil, C1-C3 alcoxil dimethilaminat, diethilaminat, phenil cianat, Z represents hydrogen, C1-Cs - alkil, etoxi, tiomethyl, triphluormethyl, aminat izopropilic, aminat dimethilic, phenil; Y and Z form together the group C(L)=C(M)-C(Q)=C(R) in which L represents hydrogen, brom, methyl; M represents hydrogen, chlor, brom, fluor; Q represents hydrogen, etoxi, R represents hydrogen, chlor, metoxi on condition that only one radical of L, M, Q or R could represent a substituite different from hydrogen, halogen or alcoxi and when W represents hydrogen and A represents COR3 on condition that B3 can't be insatiable alkil, Y can't be dimethylaminat, diethylaminat, Z can't be tiomethyl, diethylaminat, izopropylaminat in guantity of 0,032-1,000 cg/hectar. 3 tab. 8 ex.