Response of different Urochloa pastures to liming, cultivated in Sabana de Manacas region, Cuba
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Abstract
(94 %), and the exchangeable acidity of soil decreased (0.91 cmolc kg-1). The best effects were achieved with the dose of 6 t ha-1. With 4 and 6 t ha-1, the highest Ca concentrations (P < 0.01) in the biomass (5.5 g kg-1 of dry mass) and the highest yields (up to 11.7 t ha-1) were obtained. The effectiveness of liming was maintained for two years. It is concluded that liming improves calcium nutrition and increases productivity of pastures
of Brachiaria genus, cultivated in an acid soil with low fertility, in Sabana de Manacas region. Its greatest effects on soil and yields are maintained during the first two years. The application of 4 ha-1 of lime is recommended.
Keywords: soil acidity, liming, forage species, forage yield
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