Saturday, 14 November 2015

Effect of establishment methods and weed-control measures on Broad leaf weeds, yield attributes and harvest index of wheat (Triticum aestivum L.)

Abstract A field experiment was conducted during rabi season of 2013-2014 at Pantnagar, District, Udham Singh Nagar (Uttarakhand) to assess the effect of weed-control measures on Broad leaf weeds, nutrient uptake, yield attributes and harvest index under different establishment methods. ZTW recorded significantly higher total dry matter of BLWs over CTW and RTW at 60, 90 DAS and at maturity stage. Clodinafop-propargyl @ 60 g/ha recorded the maximum dry matter which was significantly higher over weedy and two hand weedings at 90 DAS and at maturity stage.. Number of grains per spike exhibited non-significant variation owing to establishment methods. Ready mix of clodinafop-propargyl + MSM @ 64 g/ha and clodinafop-propargyl @ 60 g/ha produced maximum number of grains per spike. Highest harvest index value was obtained under CTW which was at par with ZTW.The highest harvest index value was obtained with crop given clodinafop-propargyl @ 60 g/ha.

Keywords zero tillage, conventional tillage, roto till seed drill, wheat, broad leaf weeds, yield attributes.

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