Agronomic response of soybean (Glycine max (L.) Merr.) and mungbean (Vigna radiata (L.) Wilczek) planted after lowland rice (Oryza sativa L.) under varying levels of tillage, mulching and fertilizer rate [Philippines]
1987
Saputro, B.E.
In soybean, soil subjected to zero tillage resulted in higher grain yield, seeds per pod, pods per plant, leaf per plant, LAI [leaf area index], exchangeable K+ and soil moisture content at vegetative, flowering and pod filling stages than that of conventional tillage. However, conventional tillage plots gave higher nodes per plant, plant height, soybean dry weight and percentage of seedling emergence than from zero tillage. Mulching plots gave higher number of leaves per plant, LAI, plant dry weight, soil moisture content at the vegetative, flowering and pod filling stages and longer days to maturity than that of the unmulched treatment. Grain yield and soybean dry weight were higher at 60-60-60 kg NPK per hectare than at 30-30-30 kg NPK per hectare. In mungbean, soil subjected to zero tillage resulted in higher 1000 seed weight, plant height, mungbean dry weight, exchangeable K+, soil moisture content at vegetative, flowering and pod filling stages and longer days to maturity than that of the conventional tillage plots. Conventional tillage plots gave higher nodes per plant than that of zero tillage plots. Mulched plots resulted in higher 1000 seed weight, pods per plant, leaves per plant, nodes per plant, plant height, exchangeable K+ and soil moisture content at the vegetative, flowering and pod filling stages than that of unmulched plots. Plant dry weight was higher at 60-60-60 kg NPK per hectare than that at 30-30-30 kg NPK per hectare.
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