Abstract
The aim of the present work was to evaluate the selectivity of nicosulfuron, alone and in
combinations, applied in post-emergence (V4) of glyphosate and sulfonylurea tolerant
(RR/STS) soybean. The experiments were conducted in 2015/16 and 2016/17, in Piracicaba
– state of São Paulo (SP). In 2016/17, the experiment was also conducted in Palotina – state
of Paraná (PR). The experiment was a randomized block design, with four repetitions and
16 treatments, with combinations of nicosulfuron, glyphosate, chlorimuron, sulfometuron
and cloransulam, applied alone or in tank mixture. Crop injury and variables related to
agronomic performance were evaluated. Data were subjected to analysis of variance and
treatment means were compared by the Tukey test. The results obtained are significant
in the positioning of herbicides in RR/STS soybean, since in the five experiments, all the
treatments were selective, except for glyphosate + sulfometuron which reduced the yield of
a cultivar (CD 2630 RR/STS) in the 2015/16 season.
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Authors and Affiliations
André Felipe Moreira Silva
Alfredo Junior Paiola Albrecht
Henrique Fabrício Placido