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Revista Brasileira de Saúde e Produção Animal

On-line version ISSN 1519-9940

Abstract

VASCONCELOS, Walter Alves de et al. Morphogenetic and structural characteristics and production of buffel grass fertilized with bovine digesta solid. Rev. bras. saúde prod. anim. [online]. 2013, vol.14, n.1, pp.01-09. ISSN 1519-9940.  https://doi.org/10.1590/S1519-99402013000100001.

The objective was to evaluate the morphogenesis and the production of biomass of buffel grass fertilized with different amounts of bovine solid digesta. We used an experimental area of two hectares of grazing buffel grass (Cenchrus ciliaris cv. Molopo) deployed in 2006, this area is designed exclusively for the production of hay. In 2009 the experiment was implemented a total area of 375m2, which was divided into 25 plots of 15m2 each, with each plot had 8m2 (4x2) of the experimental area and a boundary line of 0.5m wide around the perimeter. We used a split-plot in time, in randomized complete block experimental design, with five treatments and five repetitions of the corresponding amounts of bovine digesta (3.5; 7.0; 10.0 and 13.5t/ha), totaling 25 experimental units. There was interaction between the amounts of digesta and cuts for the production of green biomass, and for all quantities of digesta were obtained higher yields applied to the third cut. The largest green biomass production was obtained for treatment with 13.5t/ha of digesta. There was no interaction between cuts and fertilization with digesta to the number of live tillers, number of dead tillers, number of live leaves per tiller, phyllochron, height and diameter of clump. Thus, it is recommended the application of bovine digesta to be efficient in increasing the production of biomass of buffel grass cv. Molopo, through changes in some structural features, can be used as organic fertilizer in pastures of grass.

Keywords : organic fertilization; phytomass; semiarid; vegetative growth.

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