Evaluation of Pigeon Pea (Cajanus cajan) Cover Cropping and "No-till" as a Soil and Crop Management Practice in Corn (Zea Mays) Areas of Isabela, Philippines
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概要
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Experiments were conducted to assess and evaluate the effects of pigeon pea (Cajanus cajan) cover cropping and no-till practice on corn (Zea Mays) yield, surface runoff and soil erosion. The experimental site was a grassland with a uniform slope of 10% and low fertile clay loam surface soils located at the Soil and Water Conservation Station, Brgy. Baligatan, Ilagan, Isabela, Philippines. There were 3 treatments, namely; fallow + till (F+T), fallow + no-till (F+NT), and pigeon pea (Cajanus cajan) + no-till (PP+NT). Pigeon pea was grown during the period of February to May, 2008, then cut and mulched on the soil surface before corn planting. After corn harvest in September, the second corn cropping was conducted during the period of November, 2008 and February, 2009. Organic matter content in the PP+NT treatment increased significantly during the experimental period unlike that for the other treatments. PP+NT also led to a lower maximum soil temperature at a depth of 5 cm compared with the other two treatments. PP+NT also led to a soil water depletion behavior in deeper soil horizons during the lull period probably due to deep root penetration and active photosynthesis during the maturation period. The 20 hill-based corn yield for PP+NT was improved by almost 1 t ha-1 compared with that for F+T, although the values were not statistically significant, probably due to the nutrient contribution from pigeon pea biomass. PP+NT also contributed to reducing soil runoff and soil erosion, particularly during peak rainfall events. Hence, pigeon pea cover cropping in combination with no-till, with proper management, was found to be effective in ensuring sustainable corn production in sloping lands by improving crop yield, minimizing soil erosion and nutrient loss.
- 日本熱帯農業学会の論文
著者
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Nagumo Fujio
Japan International Research Center For Agricultural Sciences
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CONTRERAS Samuel
Bureau of Soils and Water Management
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GESITE Arnulfo
Bureau of Soils and Water Management
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DIMAANO Ronald
Bureau of Soils and Water Management (BSWM)
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URRIZA Gavino
Bureau of Soils and Water Management (BSWM)
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TEJADA Silvino
Bureau of Soils and Water Management (BSWM)
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CREENCIA Rogelio
Bureau of Soils and Water Management (BSWM)
関連論文
- Effects of tillage practices combined with mucuna fallow on soil erosion and water dynamics on Ishigaki Island, Japan(Soil Physics)
- Nutrient uptakes and maize productivity as affected by tillage system and cover crops in a subtropical climate at Ishigaki, Okinawa, Japan(Soil Fertility)
- Enhancing multi-functionality of agriculture through rainwater harvesting system
- Nitrogen balance under non-tillage maize (Zea mays L.) cultivation after hairy vetch (Vicia villosa Roth.) cropping at sloping fields(Soil fertility)
- Ineffectiveness of directly applied Burkina Faso phosphate rock on rice growth(Fertilizers and soil amendments)
- Evaluation of Pigeon Pea (Cajanus cajan) Cover Cropping and "No-till" as a Soil and Crop Management Practice in Corn (Zea Mays) Areas of Isabela, Philippines