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Microbiological and Physicochemical Properties of Carbamate Insecticides Treated Soil
Author(s) -
ElSayed M. A.,
ElShanshoury A. R.,
Swelim M. A.,
Abd ElSalam S. S.
Publication year - 1993
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1993.tb01079.x
Subject(s) - methomyl , loam , carbaryl , carbamate , population , agronomy , pesticide , chemistry , soil water , toxicology , biology , ecology , biochemistry , demography , sociology
Treatment of clay loam soil with carbaryl (sevin), thiodicarb (larvin) and methomyl (lannate) at field and 10 folds the recommended doses showed a variable effect on population of total bacteria, azotobacters and nitrifying bacteria, in addition to the soil content of total soluble salts; the effect differed according to the herbicide and the dose level. The bacterial population was significantly increased in the first five days of treatment, then a decrease was recorded. The increase in the microbial population and total soluble salts were proportion to the levels of the insecticides. Moreover, supplementation of glucose to the soil caused substantial increase over that in the insecticide and/or glucose free soils.