Effect of Plant Residues on the Size of Microbial Biomass and Nitrogen Mineralization in Soil : Incorporation of Cowpea and Wheat Straw

3 Citations
  • PATRA D. D.
    Department of Soil Science and Agricultural Chemistry, SKN College on Agriculture, Rajasthan Agricultural University
  • Bhandari Sukhpal Chand
    Department of Soil Science and Agricultural Chemistry, SKN College on Agriculture, Rajasthan Agricultural University
  • Misra Ajay
    Department of Soil Science and Agricultural Chemistry, SKN College on Agriculture, Rajasthan Agricultural University

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Description

In an incubation study, soil was amended with cereal (wheat) and legume (cowpea) plant materials. The amount of biomass C, biomass N and mineral N (NH_4 and NO_3) was estimated at 10, 20, 45, and 100 d after preincubation (30 d). The amount of biomass C was found to be largest in wheat straw-treated soils. No significant changes occurred in the C : N rations of biomass associated with the incubation for 100 d of the soil with two plant materials but the rations were higher in the wheat straw-treated soil than in the control and cowpea straw incorporation. The amount of mineral N and biomass N was significantly larger in the cowpea straw amended soil as compared to wheat incorporation. The sum of the mineral (initial) N amount in soil and that mineralized during incubation of a fumigated soil (flush N) may be a suitable index of available N status in a soil.

Journal

  • Soil Sci. Plant Nutr.

    Soil Sci. Plant Nutr. 38 1-6, 1992

    Japanese Society of Soil Science and Plant Nutrition

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Details 詳細情報について

  • CRID
    1574231876652418304
  • NII Article ID
    110001720088
  • NII Book ID
    AA00844314
  • ISSN
    00380768
  • Text Lang
    en
  • Data Source
    • CiNii Articles

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