THE USE OF HERBICIDE MILAGRO FOR WEED CONTROL IN THE SOWINGS OF MAIZE FOR GRAIN

Abstract

There are presented results of vegetation and field tests of the herbicide Milagro, 40g/l nicosulfuron suspension concentrate, produced by Co Ltd Singenta, as a weed control agent for the maize sowings under conditions of Primorsky Krai of the Russian Federation. It is shown that the post-emergence application of the herbicide at the rates of 1.0 and 1.5 l per ha effectively suppressed gramineous weeds and certain annual dicotyledonous plants. The addition of Luvaram (0.82 l/ha) to this tank mixture intensified the action on dicotyledonous weeds. It was found that the protection of the crop from weeds by this tank mixture allowed preserving up to 22 centners of grain per ha (12.6 in the control). It was considerably higher than in the case of individual usage of the herbicide Milagro (1.0 l/ha). Against the weed-free background, the herbicide Milagro had a certain stimulating effect on the crop and raised its productivity by 3-4 percent. When used tank mixture of Milagro and Luvaram (1.0 + 0.82 l/ha), the corn was neutral to its components. The herbicide decomposes almost completely in soil in 11 months after application, and does not have influence on the density of stand, height of plants and crop yield.