Chemodynamics of cypermethrin in eggplant agroecosystem in Bangladesh

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Research Paper 01/02/2015
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Chemodynamics of cypermethrin in eggplant agroecosystem in Bangladesh

Shahinoor Rahman, Md. Mahbubar Rahman, Md. Zinnatul Alam
Int. J. Agron. Agri. Res.6( 2), 22-28, February 2015.
Certificate: IJAAR 2015 [Generate Certificate]

Abstract

A study was conducted in the experimental farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, which is situated at 24.040 N latitude and 90.400 E longitude with an elevation of 8.4 meter from the sea level and in the 28th Agro ecological Zone (AEZ) during November 2012 to April 2013. Field study was conducted to measure the application loss of insecticide through soil and air at different growth stages of eggplant crop. Fate of cypermethrin during application, consist of receiving insecticide by the eggplant and disseminating it to the other non target site mainly air and soil. The total highest loss of cypermethrin (82.3±4.2%) was recorded at 45 days after transplanting (DAT) and the loss was through air (5.2±0.3%) and soil (77.2±2.6%). The lowest plant height and canopy area was observed at 45 DAT in that time cypermethrin application loss was highest. Among the different treatments the lowest cypermethrin loss and maximum retention of cypermethrin in the plant (49.2%) was observed in T3 treated plot which was started at 104 DAT when the plant height and canopy area was reached at a maximum level and obviously the environmental component was polluted at a minimum rate.

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