Moldeling of infiltration characteristics by the modified Kostiakov method: A case study in Thuong river alluvial in Vietnam

The purpose of this study was to apply the modified Kostiakov method to determine the soil infiltration rate and permeated water amount of Thuong River alluvial soil for orange plantations in Lang Giang district, Bac Giang province, Vietnam. The soil particle size ranged from to mainly found in the surface horizon (>). The soil was slightly acidic in the surface horizon, and highly acidic in the subsurface horizons (pHKCl from to ). The organic matter content of the surface horizon was mederate, while it was very low in the other horizons. The total nitrogen (N) content was low () in the surface horizon and very low in the subsurface horizons () while the available N was medium. |

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