Sediment Enrichment Ratio and Nutrient Leached by Runoff and Soil Ero

Oteng Haridjaja
Journal article Journal of Tropical Soils • January 2012

Abstract

Soil consevation management system is an activity for diminishing sediment enrichment ratio and nutrient leacheds by water run off and soil erosion processes. The research was aimed to study sediment enrichment ratio and nutrient leached by run off and soil erosion on cacao plantations. Arachis pintoi with strips parallel contour and multiple strip cropping of upland rice or soybean (Glycine max) were planted to improve soil physical characterictic on cacao plantation as a main plant. The expriment were conducted with treatments as 10-15% and 40-45% slopes, 5-7 months and 25-27 months cacao ages (as main plants). As sub plots are T1 as a monoculture which to be cleaning under the plant canopy, T2 as a multiple strip cropping of upland rice or soybean, T3 as a combination of T2 and A. Pintoi strip. The results showed that  total N, P2O5, and K2O and organic-C contents in water run off and soil sediments indicated that T3 >T2 >T1 treatment, with the contents of each nutrient: T3 (total N 0.18%; 24.87 mg 100 g-1 P2O5: K2O 15.16 mg 100 g-1), T1 (total N 0.16%, 22.39 mg 100g-1 P2O5, K2O 11.50 mg 100g-1).  The total N, P2O5, K2O and organic-C soil contents < accumulation nutrient contents of total water run off and soil sediment transport. All of treathments have sediment enrichment ratios > 1.Keywords: Cacao, nutrient leached, run off, SER, soil erosion, strip cropping[How to Cite: Haridjaja O. 2012. Sediment Enrichment Ratio and Nutrient Leached by Runoff and Soil Erosion on Cacao Plantation. J Trop Soils 17: 67-74. Doi: 10.5400/jts.2012.17.1.67] [Permalink/DOI: www.dx.doi.org/10.5400/jts.2012.17.1.67]

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Journal of Tropical Soils

Jurnal Tanah Tropika (Journal of Tropical Soils) publishes original research and literature revie... see more