Influence of aldicarb and endosulfan on the number of microorganisms and urease activity in the soil

Authors

  • T.M.C. Santos UFAL; CECA; Departamento de Agronomia
  • R.T.R. Monteiro Centro de Energia Nuclear na Agricultura

DOI:

https://doi.org/10.1590/S0103-90161994000100019

Keywords:

aldicarb, endosulfan, microorganisms, urease

Abstract

The effect of two concentrations of aldicarb and endosulfan was evaluated through the dilution in series and urease activity methods. Aldicarb was inhibitory to actinomycetes at 2 ppm, but caused a slight stimulation at 20 ppm. A stimulation on the actinomycete population was also observed at 2 and 20 ppm of endosulfan. Aldicarb was inhibitory to bacteria in both concentrations but, on the other hand, endosulfan caused stimulation of bacteria and fungi populations; aldicarb was found to have no effect on fungi number. The protozoa were drasticaly affected by both insecticides. The results have shown that both insecticides had no effect on urease activity.

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Published

1994-04-01

Issue

Vol. 51 No. 1 (1994)

Section

Earth Science

License

All content of the journal, except where identified, is licensed under a Creative Common attribution-type BY-NC.

How to Cite

Influence of aldicarb and endosulfan on the number of microorganisms and urease activity in the soil . (1994). Scientia Agricola, 51(1), 123-130. https://doi.org/10.1590/S0103-90161994000100019