1. Effect of continuous application of compost, ammonium sulfate and lime on some physical and chemical properties of rice soils;Bandopadhya;J. Ind. Soc. Soil Sci.,1969
2. Mineralization of nitrogen and sulfur from sheep faeces;Barrow;Aust. J. Agric. Res.,1961
3. Mineralization and immobilization of nitrogen in the decomposition of plant and animal residues;Bartholomew,1965
4. The effect of soil drying on humus decomposition and nitrogen availability;Birch;Plant and Soil,1958
5. Inorganic forms of nitrogen;Bremner,1965