They efficiency of dinitramine on weed control and its effects on soybean plants, CV Santa Rosa, IAC-2 and Mineira, was studied in a field trial performed in 1974/75 in Cristais Paulista, SP. Dinitramine was applied at 0, 0,375 and 0,575 kg/ha, combined with all cultivars, and trifluralin at 0,720 kg, with IAC-2. Plots were split in two incorporation depths: 0,07 and 0,15m. Weed population was mainly composed of two monocotyledone and two dycotyledone species. The first were controlled by all treatments and these only with the higher rate of dinitramine. Trifluralin did not control one of the broadleaves. There were significant reduction for stand by dinitramine for all cultivars, but yields were not reduced. For herbicide x incorporation depth interaction, the shallower incorporation was best with the smaller rate of dinitramine.
herbicides; dinitramine; Glycine mar; incorporation depth