References
- Gotaas , H.B. 1956 . Composting: Sanitary disposal and reclamation of organic wastes , 205 Geneva : World Health Organization .
- Golueke , C.G. 1975 . Composting: A study of the process and its principles , 3rd ed. , 110 Emmaus, PA : Rodale Press .
- Parr , J.F. , Epstein , E. and Wilson , G.B. 1978 . Composting sewage sludge for land application . Agric. and Environ. , 4 : 123 – 137 .
- Bremner , J.M. 1965 . “ Total nitrogen ” . In Methods of soil analysis. Part 2. Agron. 9. , Edited by: Black , C.A. 1171 – 1176 . Madison, WI : Amer. Soc. Agron. .
- McIntosh , J.L. 1969 . Bray and Morgan extracts modified for testing acid soils from different parent materials . Agron. J. , 61 : 259 – 265 .