Dry matter yield and common bean nutrient content submitted to glyphosate drift in two soil classes

Glyphosate is the main herbicide used worldwide and is recommended for the control of weeds in various crops. In spraying with winds of 2 m s ^{- 1}, glyphosate drift can reach up to 160 m beyond the target site, which is considered as harmful to the neighboring crops. The objective of this study was to evaluate the dry matter and nutrient content of common bean (Phaseolus vulgaris L.) cv. Pérola subjected to glyphosate drift. The experiment was conducted in a greenhouse at the State University of North Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes - RJ using the common bean (Phaseolus vulgaris L.) cv. Pérola, on a Quartzipsamment and a Paleudalf Tb . The experiment was arranged in a randomized block design in a 4 x 2 factorial scheme with four replications, with the first factor comprising the subdoses of 0 , 14.4, 43.2 and 86.4 g ha ^{- 1} acid equivalent (e.a) of glyphosate in the form of ammonium salt applied 25 days after sowing (V4 stage) and the second factor consisting of the two soils. Glyphosate drift reduced dry mass of branches and shoots at 20 days after application (DAA), the content of nitrogen (N), phosphorus (P), potassium (K), magnesium (Mg) and sulfur (S ) at 10 DAA and N, P, Ca and Mg at 20 DAA of common bean cv. Pearl.

Phaseolus vulgaris L.; herbicide; subdose; nutritional diagnose