INVESTIGATION OF POSSIBILITIES FOR PROMOTING EFFECTS OF THE APPLICATION OF THE HERBICIDE GLYPHOSATE / N- (PHOSPHONOMETHYL) GLYCINE / IN SUCKER CONTROL OF TOBACCO

Abstract

Determination of the possibility of using the herbicide Glyphosate in sucker control of tobacco with systematic action and permission from Bulgarian Agency of Food Safety for its minimum usage, gave a solution to a problem in tobacco-cultivation – finding out a chemical with systematic action against sucker formation after topping of the tobacco, especially when the usage of maleic hydrazide (MH) was forbidden. It was also proved the positive effect of the Glyphosate on yield and better quality of tobacco production. As a total herbicide, Glyphosate has some hidden risks in its usage as a physiologically active substance (FAS), even though it is used in reduced doses. This calls for finding the right solution in using the Glyphosate in sucker control after topping of tobacco. The aim of this research is to be examined the opportunity for raising the technical and economical effectiveness of the herbicide Glyphosate in sucker control of tobacco, without any risk of phytotoxicity in the tobacco culture.