EFEITOS DA CALAGEM NA NUTRIÇÃO E PRODUÇÃO DE MASSA SECA DO CAPIM TIFTON 85
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Universidade Federal de Goiás
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Soil acidity is the most limiting factor to the productivity of crops and, in the livestock context, the non-correction implies in a low animal performance. The objective of this study was the evaluation of the effects of liming in nutrition, growth, and production of Tifton 85 grass. The experiment was conducted in a greenhouse, in pots filled with 3 dm3 of samples of an oxisol.The experimental design was completely randomized, with five treatments and four replications: zero (control), half (0.77 g dm-3), once (1.55 g dm-3), one and a half times (2.32 g dm-3), and twice the dose of reference for this crop (3.10 g dm-3). The reference dose was calculated to increase the soil base saturation to 70%. It was observed that liming promoted significant effects on the growth of grass, in the second and third cuts, and that the maximum production of dry matter occurred with a soil base saturation of 67%. These results demonstrate the need of soil acidity correction for the development and production of grass.
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