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Revista de la Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo
versión On-line ISSN 1853-8665
Resumen
BURIN, Fernando; ALVES DE SOUZA, Cristiano Marcio; RAMIRES, Ivan y DA SILVA, Paulo Vinicius. Physical-chemical properties of spray syrup in tank-mixing multiple pesticides and water sources used in grain farming. Rev. Fac. Cienc. Agrar., Univ. Nac. Cuyo [online]. 2022, vol.54, n.1, pp.132-144. ISSN 1853-8665.
This work evaluated physical-chemical properties of spraying syrup formulated with different water types and using or not tank-mixing pesticides. The experimental design was completely randomized in a 4 x 5 factorial scheme (4 water types and 4 pesticide syrups + control, non-sprayed plant) in three sampling times (off-season corn, pre-planting soybean weed control, and soybean season) within one year. Water treatments consisted of deionized, well, river and weir water. Product mixing consisted of herbicide (Glyphosate 925 g a.i. ha-1), herbicide + insecticide (Imidacloprid + beta-cyfluthrin 100+12.5 g a.i. ha-1), herbicide + fungicide (Trifloxystrobin + Prothioconazole 70+60 g a.i. ha-1) and herbicide + insecticide + fungicide. Weir water presented the worst physical quality. Spraying syrup prepared with tank-mixing herbicide, insecticide, and fungicide in various combinations decreased the effectiveness of the pesticide. When associating the three pesticides, less dissolution of the spray syrup and greater risk of syrup incompatibility leads to pesticide ineffectiveness.
Palabras clave : Application technology; Water types; Plant protection.