Efeito da adubação orgânica e altura de resíduo sobre a produção de fitomassa do capim-buffel

Abstract

The objective of this work was to evaluate effect of organic fertilization levels using goat manure and two stubble heights, on the biomass production of buffel grass. We used a split plot in a randomized complete block design with five replications. The plots consisted of doses of goat manure (0; 5,;10, 15 and 20t/ha) and the subplots consisted of two heights of residue (10 and 20cm). In the production of green matter of buffel grass, had effect, as well as an interaction effect between stubble heights and fertilization. With respect to dry matter production of buffel grass, there was also an effect of stubble heights, fertilizer and cut time, and there were differences between heights only when the grass to received 10 and 20t/ha doses organic fertilizer. The total accumulation of stem showed a linear increase, using doses of fertilizer when the grass was harvested at the height of 10cm, without adjustments even when the templates were harvested at 20cm. There was a linear increase accumulation of liquid at the height of 10cm as the higher doses of fertilizer. The organic fertilization increases the biomass production of buffel grass is cut when the height of 10cm residue.