Ecology, Environment and Conservation Paper

Vol.12, Issue 2, 2006; Page No.(377-380)

INTEGRATED APPROACH OF CULTURAL PRACTICES AND METHODS OF WEED CONTROL IN SUMMER ONION

B.T. Shete, U.V. Mahadkar and H.M. Pathl

Abstract

Asperginus niger, Aliernaria and i 'nsarium were isolated from leaves of tomato and fruits of dolichos The field experiment was carried out during summer seasn of 2003 at Central Campus Farm, MPKV, Rahuri, Dist- Ahmednagar (MS) in randomised block design (factorial) with three replications and sixteen treat¬ment combinations comprised of two cultural practices and eight weed control treatments. The results revealed that the significantly lowest dry weight of weeds at harvest (18.67 grn7) was observed in the treatment weed free upto 60 DAT which was followed by heriibicidal treatment spraying of pendimethalin @ 1.5 kg a.i.hal (PE) + I HW at 45 DAT. The highest weed contol efficiency was observed in treatment weed free upto 60 DAT (79.09%) followed by application of pendimethalin 4:01.5 kg a.i. hal (PE) + 1 HW at 45 DAT (64.33 %). weed index was lower in spraying of pendimethalin a.5 kg a.i.hal (PE) + 111W at 45 DAT (2.06 per cent). The significantly higher bulb yield of onion was recorded in flat bed method (212.20 q ha-') and in weed control treatments significantly highest bulb yield (249.38 q ha) was obtained from the treatment weed free upto 60 DAT. While it was at par with spraying of pendimetha lin 0.21.5 kg a.i. hal (PE)+ 1 11W at 45 DAT.

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