1. Inorganic forms of nitrogen;Bremner,1965
2. Effect of fertilizer nitrogen on the release of soil nitrogen;Broadbent,1965
3. Effect of nitrogen fertilization on soil solution composition, acidity and nutrient leaching in acid red-yellow podzolic soils;Golden;Tea Quarterly,1981
4. Tracer studies on nitrogen transformations in soil with special attention to mineralization-immobilization relationships;Jansson;Annals of the Royal Agricultural College, Sweden,1958
5. Mineralization and immobilization of soil nitrogen;Jansson,1982