Pre-harvest desiccation strategies of soybean culture: a scenario without paraquat.

Autor: Silva PVD; College of Agriculture, Federal University of Grande Dourados, Dourados, Brazil., Mendonça Bezera M; College of Agriculture, Federal University of Grande Dourados, Dourados, Brazil., Medeiros ES; College of Agriculture, Federal University of Grande Dourados, Dourados, Brazil., Carvalho Dambrós T; College of Agriculture, Federal University of Grande Dourados, Dourados, Brazil., Mauad M; College of Agriculture, Federal University of Grande Dourados, Dourados, Brazil., Monquero PA; Center for Agricultural Sciences, Federal University of São Carlos, Araras, Brazil., Alves Nunes F; Center for Agricultural Sciences, Federal University of São Carlos, Araras, Brazil., Schedenffeldt BF; Center for Agricultural Sciences, Federal University of São Carlos, Araras, Brazil.
Jazyk: angličtina
Zdroj: Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes [J Environ Sci Health B] 2022; Vol. 57 (9), pp. 710-719. Date of Electronic Publication: 2022 Jul 21.
DOI: 10.1080/03601234.2022.2100680
Abstrakt: The objective of this study was to evaluate the use of diquat, glufosinate ammonium, saflufenacil and flumioxazim, positioned alone and/or combined, in the pre-harvest desiccation of soybean crops. For this purpose, a field experiment was conducted, with application of the treatments in the phenological stage R 7.2 of soybean. At 3 DAA, the herbicides diquat and their combinations with flumioxazin and ammonium glufosinate, at all doses, resulted in defoliation and desiccation percentages greater than 90%. At 5 DAA, only the flumioxazin and glufosinate ammonium treatments, alone, did not show indices for harvesting. At 10 DAA, only the control differed from the other treatments in relation to desiccation, demonstrating the need to apply desiccants to enable harvest. The results indicate that the combination of herbicides may represent an alternative to reduce doses and increase the efficacy of isolated products through synergism, in addition to operational gains.
Databáze: MEDLINE
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