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Publication Date
1997
Location
Manitoba and Saskatchewan
Description
The litter decomposition and nutrient release of two dominant grass species Sporobolus indicus (L) R. Br., Leersia Hexandra SW. and mixed grasses was studies by litter bag technique in the humid grassland ecosystem at Imphal, Northeastern India. On ermination of experiment after 12 months, the shoots decomposed from 97.2 to 100% and the roots from 82.9 to 91.8% of different species. The rate of litter decomposition of shoots were higher than roots. The decomposition constant (K) also varied from species to species. It is positively correlated with soil moisture content during the study period. The initial nitrogen, lignin and lignin to nitrogen ratio influenced the rate of litter decomposition. During the process of decomposition the nutrients concentration were decreased considerably except N, which increased in the concentration. More remaining nutrient contents were recorded in the roots than shoots in all the species at the end of the experiment and were in the order of N>P>K.
Citation
Yadava, P S. and Thoudam, N S., "Litter Decomposition and Nutrients Release During Decomposition in a Humid Grassland of Northeastern India" (1997). IGC Proceedings (1985-2023). 12.
(URL: https://uknowledge.uky.edu/igc/1997/session20/12)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Litter Decomposition and Nutrients Release During Decomposition in a Humid Grassland of Northeastern India
Manitoba and Saskatchewan
The litter decomposition and nutrient release of two dominant grass species Sporobolus indicus (L) R. Br., Leersia Hexandra SW. and mixed grasses was studies by litter bag technique in the humid grassland ecosystem at Imphal, Northeastern India. On ermination of experiment after 12 months, the shoots decomposed from 97.2 to 100% and the roots from 82.9 to 91.8% of different species. The rate of litter decomposition of shoots were higher than roots. The decomposition constant (K) also varied from species to species. It is positively correlated with soil moisture content during the study period. The initial nitrogen, lignin and lignin to nitrogen ratio influenced the rate of litter decomposition. During the process of decomposition the nutrients concentration were decreased considerably except N, which increased in the concentration. More remaining nutrient contents were recorded in the roots than shoots in all the species at the end of the experiment and were in the order of N>P>K.
