Abstract
Cation budgeting was done under 4- and 12-year old terraces at higher elevation of Meghalaya (960 m) in north-east India. Cation addition occurred after burning the biomass arising from the weed and the crop residue prior to cropping. While nutrient removal through weeds was more under 12-year old terrace than under 4-year old one, the reverse was true for that removed by crop. Nutrient deficit, particularly potassium, was obvious under 12-year old terrace. Decline in soil fertility and increase in weed potential are implicated in the reduced crop yield.
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Patnaik, S., Ramakrishnan, P.S. Cation budget under terrace agroecosystem in Meghalaya in north-east India. Proc. Indian Acad. Sci. 100, 23–31 (1990). https://doi.org/10.1007/BF03053465
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DOI: https://doi.org/10.1007/BF03053465