Full Research

Effect of Weed-Control Measures on Yield, Weed Control, Economics, Energetics and Soil Microflora under Different Establishment Methods of Wheat (Triticum aestivum L.)

Sirazuddin, S. P. Singh, V. P. Singh, B. S. Mahapatra and Himanshu Verma

  • Page No:  736 - 743
  • Published online: 07 Dec 2015
  • DOI : 10.5958/0976-4038.2015.00112.8

  • Abstract
  •  sirazsddq@gmail.com

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 grain yield, weed control efficiency (WCE), economics, energetic and soil microflora of wheat (Triticum aestivum L.) under different establishment methods. The highest grain (4688 kg ha-1) and biological yield (12131 kg ha-1) was obtained in the plots treated with clodinafop-propargyl @ 60 g ha-1. Grain and biological yield loss under RTW, CTW and ZTW due to weeds was 75.9% and 30.8%, 22.3% and 11.5% and 18.3% and 14.3%, respectively. Ready mix of clodinafop-propargyl+MSM @ 64 g ha-1 in each establishment method of wheat recorded 100% weed control efficiency at 60, 90 DAS and at maturity. Highest B: C ratio (2.5) was achieved under clodinafop-propargyl @ 60 g ha-1 which was at par with ready mix of clodinafop-propargyl+MSM @ 64 g ha-1. Maximum energy input (15717 MJ ha-1) was recorded under CTW with two hand weedings and the lowest energy input (15113 MJ ha-1) was recorded under RTW in weedy plot which was closely followed by weedy plots of ZTW. Energy output (171483 MJ ha-1), net energy return (156354 MJ ha-1) and energy use efficiency (11.3) was maximum in case of RTW plots where ready mix of clodinafop-propargyl+MSM @ 64 gha-1 was applied. Energy intensity (3.0) was lowest under RTW with clodinafop-propargyl @ 60 g ha-1. The lowest population of bacteria (6.87 log cfu) and actinomycetes (5.46 log cfu) was recorded under ready mix of clodinafop-propargyl+MSM @ 64 g ha-1.

Keywords :   Economics, energetic, conventional tillage, microflora, wheat, zero tilla


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