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Persistence of propineb (polymeric zinc 1,2-propylene bisdithiocarbamate) fungicide in onion and cropped soil.

Bulletin of environmental contamination and toxicology (2011-03-29)
N S Parihar, B N Sharma
ABSTRACT

To study the persistence of propineb in/on onion a field experiment was conducted during 2007 at Agricultural Research Station, Durgapura, Jaipur Propineb70WP @ 1,225 and 2,450 g a. i. ha(-1) dose was applied as foliar spray to the crop thrice at an interval of 10 days. After third spray, onion samples comprising of green leaves and immature bulb were collected at 0,1,3,5,7,10 and 15 days. The initial deposit was 2.32 and 4.89 ppm of propineb (on CS(2) basis) which persisted up to the 10 and 15 days at normal 1,225 g a.i. ha(-1) and higher 2,450 g a.i. ha(-1) dose of fungicide application. The half life values of propineb ranged from 3.27 to 4.60 days.

MATERIALS
Product Number
Brand
Product Description

Supelco
Propineb, PESTANAL®, analytical standard
Supelco
Zineb, PESTANAL®, analytical standard