An incubation procedure for measuring nitrogen availability index in coal mine soils. | [Gomal University Journal of Research • 1993]

Author(s):

1. M. Qasim Khan: Faculty of Agriculture, Gomal University, Dera Ismail Khan, Pakistan

2. M. Aslam Khan: Faculty of Agriculture, Gomal University, Dera Ismail Khan, Pakistan

3. S. S. Shah: Agricultural Research Institute, Peshawar, Pakistan

Abstract:

An incubation procedure that determine nitrogen mineralization and CO2 evolution in coal mine soils was evaluated. It was recommended that 50 gram of soil (oven-dry basis) be incubated in a 16 litre plastic bin for 16 days at 20 °C and mineral N content (NH4, NO3 and NO2-N) and CO2-C evolved be determined at 4 days interval. The method seemed to be more rapid and precise for the assessment of nitrogen supplying power of coal mine soils.

Page(s): 23-31

DOI: DOI not available

Published: Journal: Gomal University Journal of Research, Volume: 13, Issue: 2, Year: 1993

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