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Pakistan Journal of Biological Sciences
  Year: 2002 | Volume: 5 | Issue: 9 | Page No.: 952-955
DOI: 10.3923/pjbs.2002.952.955
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Changes in Enzyme Activity During the Decomposition of Plant Residues in Soil

M.H. Sajjad, A. Lodhi and F. Azam

An incubation experiment was conducted under laboratory conditions to study the changes in some soil enzymes during the decomposition of plant residues. Soil samples amended with powdered plant material of wheat, maize and sesbania were incubated for 8 weeks at moisture content of 60% of the maximum water holding capacity and 22-26°C for 8 weeks. At 0, 2, 4 and 8 weeks of incubation, portions of soil were analyzed for total C and activity of different enzymes. Maximum dehydrogenase and invertase activity was observed for sesbania and minimum in unamended soil, however there was no consistent trends with incubation intervals. Cellulase activity was not affected strongly by organic amendments, however it increased with time in amended than unamended soils. The differences between different treatments were non significant for urease.
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  •    Influence of Altitudes on Activity of Soil Health Bioindicators β-glucosidase and Urease in Agricultural Soils of Almora District of Central Himalaya
  •    Role of Metabolites and Significance of SH Groups in the Action of NADP+-Linked Isocitrate Dehydrogenase of Urdbean Seeds (Phaseolus mungo L.)
How to cite this article:

M.H. Sajjad, A. Lodhi and F. Azam, 2002. Changes in Enzyme Activity During the Decomposition of Plant Residues in Soil. Pakistan Journal of Biological Sciences, 5: 952-955.

DOI: 10.3923/pjbs.2002.952.955






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