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      Permanent link:
      https://www.ias.ac.in/article/fulltext/plnt/100/01/0023-0031

    • Keywords

       

      Terrace; cation budget; biomass; soil fertility

    • 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.

    • Author Affiliations

       

      Suprava Patnaik1 P S Ramakrishnan1

      1. School of Environmental Sciences, Jawaharlal Nehru University, New Delhi - 110 067, India
    • Dates

       
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