Característica da deposição produzida por pontas de pulverização em diferentes pressões e estratos do dossel da cultura da soja (Glycine max (L) Merrill).

Abstract

The work had as objective to study the performance of deposition of different spray nozzles in different tracts of dossel soybean. Eighth treatments were studied in factorial scheme 6x2, constituted by the contrast of six spray nozzles and two work pressures: AD 11002 (152 L ha-1 e 208 L ha-1); AD/D 11002 (152 L ha-1 e 208 L ha-1); AD-IA/D 11002 (152 L ha-1 e 208 L ha-1); MAG 2 (157 L ha-1 e 212 L ha-1) e MAG 3 (157 L ha-1 e 212 L ha-1). For monitoring of spray deposition in of 30 and 60 psi, were used Bright Blue FD&C-1 (0,3% p/v) and Tartrasine Yellow FD&C-5 (0,6% p/v) as tracers. the unitary deposits of the solutions quantified by spectrophotometry. The nozzles . AD/D 11002 E MAG 2, in the respective pressures de 30 (152 L.ha-1) e 60 psi (157 L.ha-1) characterizing earnings in the capacity and operational revenue of the spray