The higher the percentage
of straw, the higher the degradation rate. The change of burned cane harvesting system for sugarcane
under straw results in improved productivity of sugarcane and favors the production of sugar. The
straw and harvest system change do not affect the industrial quality of sugarcane. The harvest with
burning, the total withdrawal or of 75% of the straw of the field result in lower productivity. The
maintenance of 50% of the straw on the soil surface is sufficient to improve the productivity of
sugarcane in dry period, and the remaining 50% can be used for second generation of ethanol
production or electricity without damaging the crop productivity.