1. Abd-el-Malek, Y., Monib, M. and Zayed, M. N.:Bacteriological and chemical studies in rice straw compost. I. Composting of rice straw at temperatures occurring under field conditions. J. Soil Sci. U.A.R. I: 51, 1961.
2. Allen, O. N.:Experiments in soil bacteriology Burges Publishing Co., U.S.A. (1953).
3. Bollen, W. B., Morrison, H. E. and Crowell, H. H.:Effect of field treatments of insecticides on numbers of bacteria, Streptomyces, and molds in the soil. J. Econ. Entomol. 47: 302, 1954.
4. Martin, J. P., Baines, R. C. and Erwin, J. O.:Influence of soil fumigation for citrus plants on the fungus populations of the soil. Soil Sci. Soc. Amer. Proc. 21: 163, 1957.
5. Martin, J. P. and Pratt, P. F.:Fumigants, fungicides and the soil J. Agr. Food. Chem. 6: 345, 1958.