Resumo

EDVAN, R.L. et al. Use of organic fertilizer in bufeel grass (Cenchrus ciliaris CV. Molopo) pasture. Arch. zootec. [online]. 2010, vol.59, n.228, pp.499-508. ISSN 1885-4494.

The objective of this experiment was to compare with other fertilizer sources the effect of bovine digestive content on structural, morpho-genetic and production characteristics of buffel grass. The study was carried out at Estação Experimental do Instituto Nacional do Semi-árido, located in Campina Grande, PB, Brazil. A previously implanted pasture of buffel grass, cultivar Molopo was used. Experimental area was split in 24 (4 m²) experimental unities and a completely randomized block in a split plot scheme, split at time. Treatments were 5 and 10 ton of dry matter per ha of digestive content or bovine manure. For mineral fertilizer treatment 40:10:40 formule was used applying 200 kg of mix per ha. There was not interaction between fertilization and time cut (p>0.10). Fertilization influenced (p<0.10) fresh matter production; mineral fertilizer treatment presented higher production. For dry matter production difference was verified (p<0.10); cattle manure and digestive content in higher dose resulted in greater productions. Higher (p<0.10) number of tillers was verified for digestive content in higher dose. There was not effect (p>0.10) of fertilization for leaf/steam ratio, leaf appearence rate and number of green leafes per tiller, whereas effect (p<0.10) for phyllocron was obseved, mainly for higher cattle manure dose. With relation to time of cutting there was difference (p<0.10) for fresh and dry matter production, leaf/steam ratio, leaves appearence rate, number of green leaves per tiller, phyllocron and height of cut. The digestive content promote increase in buffel grass production, presenting a viable alternative to be used as organic fertilizer.

Palavras-chave : Growth; Management; Mineral nutrients.

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