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Impact of Certain Pesticides on Urease and Dehydrogenase Enzymes in Soil during the Cotton Bollworms Control
2013
Alexandria Science Exchange Journal An International Quarterly Journal of Science Agricultural Environments
The present study was carried out on soil cultivated with cotton variety Giza 70 during the season of 2011 to determine the side effects of certain pesticides i.e.; chlorpyrifos, profenofos, cypermethrin and alphacypermethrin which were used against the cotton bollworms on soil enzymes of urease and dehydrogenase. Three sprays for each insecticide were done and the spraying is carried two weeks after the previous spray. The average of urease activity for the three sprays were expressed as
doi:10.21608/asejaiqjsae.2013.2974
fatcat:u6in5gn7ljh6lof3duzzvhhuia