Decomposition of ground biomass of secondary forest and yield of annual crops in no tillage system.
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The objective of this work was to evaluate the dynamics of decomposition process of chopped secondary forest system, previously enriched with legumes Inga velutina Willd. and tryphnodendron pulcherrimum (Willd.) Hochr. and the contribution of this process to the nutrient input to the cultivation of corn and bean under no-tillage. The experimental design was a randomized block, split plot with four replications. The plots were two species (I. velutina and S. pulcherrimum) and the subplots were seven times of evaluation (0, 7, 28, 63, 189, 252, 294 days after experiment installation). There was no difference (p > 0.05) between the secondary forest systems enriched and no interaction with times for biomass waste, decomposition constant and half-life time. The waste of S. pulcherrimum trees had higher (p < 0.05) C/N ratio than that I. velutina. However, this one was higher (p < 0.05) in lignin content. Nevertheless, the dynamics of residue decomposition was similar. The corn yield was higher (p < 0.05) in cultivation under I. velutina waste. Meanwhile, the beans planted after corn, shows similar (p > 0.05) yield in both areas, regardless of the waste origin.
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Capoeira triturada, Ingá peluda, Inga velutina, Baginha, Stryphnodendron pulcherrimum, Frijoles, Cero labranza, Cultivo secuencial, Fertilizantes orgánicos, Fitomasa, Maiz, Rendimiento de los cultivos, Sistemas de cultivo, Sistema de cultivo, Plantio direto, Milho, Zea mays, Feijão, Phaseolus vulgaris, Rendimento, Adubo orgânico, Cobertura morta, Biomassa, Decomposição, Leguminosa, Cultivo Seqüencial, Cropping systems, Sequential cropping, No-tillage, Corn, Beans, Crop yield, Organic fertilizers, Phytomass