Agricultural and industrial yields of sugar cane submitted to vinasse rates

Abstract

This study was carried out to assess the influence of vinasse rates on the agricultural and industrial yields of sugar cane. The experiment was set up at the School Farm of the State University of Londrina, in "Latossolo Vermelho" soil (Oxisol), between 1994 and 1999, in a randomized block design with four replications. Treatments were based of five rates of vinasse applied to the soil: T1 = 0 m3 ha-1, T2 = 150 m3 ha-1, T3 = 300 m3 ha-1, T4 = 450 m3 ha-1, T5 = 600 m3 ha-1. This study is accomplishes the fourth and the fifth harvesting (3a and 4a stump) and the following parameters were evaluated: agricultural (ton ha-1) and industrial yield (ton ha-1 of sugar and m3 ha-1 of alcohol). The results showed that the intermediary rates (300 and 450 m3 ha-1) gave provided better results for agricultural and industrial yield.