Summary
The application of diazinon, an organophosphorus insecticide, at the rate of 2 kg and 20 kg active ingredient per hectare to submerged Maahas clay significantly stimulated the actinomycete population. A distinct zone of brown pigmentation formed in that part of the profile commonly referred to as the oxidized layer. A profuse growth of actinomycetes developed from the soil samples of this pigmented zone when streaked onto the nutrient agar. A visible increase in algal populations was noted in the standing water of the diazinon-treated soil.
References
Gunner, H. B.,et al., Plant and Soil25, 249–264 (1966).
Raghu, K. and MacRae, I. C., Can. J. Microbiol.13, 173–180 (1967).
International Rice Research Institute, Los Baños, Laguna, Philippines, Ann. Rept.1966.
Thornton, H. G., Ann. Appl. Biol.9, 241–274 (1922).
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Sethunathan, N., MacRae, I.C. Some effects of diazinon on the microflora of submerged soils. Plant Soil 30, 109–112 (1969). https://doi.org/10.1007/BF01885267
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DOI: https://doi.org/10.1007/BF01885267