VARIEDADES DE CANA-DE-AÇÚCAR SUBMETIDAS A DIFERENTES MANEJOS DE LÂMINAS DE VINHAÇA

Abstract

When the vinasse fertigation process is used under control in the sugar cane plantation, events such as industrial residues can be recycled and soil fertility increased. In adition, water catchment to irrigation and the use of chemical fertilizer can be both reduced. In this context, this research goals was to evaluate the effect of different blades and installments of vinasse, wich was applied under sugar cane distinct varieties. The experiment took place at Boa Sorte farm in Carmo do Rio Verde - GO, Brazil. It was developed in an area planted with sugar cane varieties RB 86-7515 and SP 80-1816, in the sugar cane cycle. The statistical subdirectory used was a randomized blocks (DBC). It was subdivided in plots. Thus the plots were formed by two types of plots and the subplots were used in three vinasse managements application. This process was made in order to evaluate sugar cane as biometric variables of growth, productivity and technological quality. it was considered: M1 two 20-20 mm parceled blades, M2 one 40-0 mm and M3 two parceled blades. 30-30 mm). For the results found were made the variance analysis by the F test. After that, the average positive data test was made. It was appraised characteristics such as plant variables (AP), stem diameter (DC) and number of recoverable sugar plants (ATR), soluble solids content (TSS), pol broth (PC), apparent sucrose content (POL), Fiber, total sugar reducer (ART), wet bagasse weight (PBU), and ethanol yield (RE) a variety SP80 - 1816 demonstrated superiority. The vinasse plots application did not show viability as it did not interfere with stem yield and ATR