Author(s): ANDRADE, C. M. S. de; GARCIA, R.; VALENTIM, J. F.; FERREIRA, O. G.

Summary: This study was carried out to evaluate the productivity and utilization efficiency of a mixed marandugrass (Brachiaria brizantha cv. Marandu), forage peanut (Arachis pintoi cv. Mandobi) and tropical kudzu (Pueraria phaseoloides) pasture, rotationally stocked at four daily forage allowance levels (6.6, 10.3, 14.3 and 17.9% of live weight), in order to define sward management targets for these mixtures. In each stocking cycle, dry matter (DM) accumulation rates, defoliation intensity (%), grazing depth (%) and grazed horizon (cm) were evaluated. Sward targets were defined according to the sward condition that best conciliated the grass-legume balance and the equilibrium between forage production and utilization. Pastures submitted to higher forage allowance levels showed higher productivity, but were less efficiently utilized. It was not possible to establish sward management targets for marandugrass-tropical kudzu pastures. For marandugrass-forage peanut pastures the best sward state was set with forage allowance of 10.3% of live weight. Under rotational stocking, the following sward targets were suggested for these pastures in the Western Amazon: pre-grazing height of 30-35 cm (June to September) or 45-50 cm (October to May) and post-grazing sward height of 20-25 cm (June to September) or 25-30 cm (October to May).

Publication year: 2012

Types of publication: Journal article

Unit: Embrapa Acre

Keywords: Acumulación de materia seca, Amendoim forrageiro, Arachis pintoi, Arachis pintoi cv Marandu, Brachiaria brizantha, Brachiaria brizantha cv Marandu, Cacahuete forrajero, Capim Brachiaria, Crop yield, Cultivares, Cultivars, Defoliación, Defoliation, Desfolha, Dry matter accumulation, Forage legumes, Forage peanut, Grazing depth, Horizonte, Horizonte pastoreado, Kudzu, Leguminosa forrageira, Leguminosas forrajeras, Matéria seca, Mixed grazing, Pastagem, Pastoreo mixto, Profundidad de pastoreo, Profundidade, Pueraria phaseoloides, Rendimento, Rendimiento de los cultivos, Rotação de cultura, Urochloa brizantha, Variedade resistente