Integrated weed management in turmeric

摘要

A field experiment was conducted during Kharif2QA and 2015 at Agriculture and Horticulture Research Station, Kathalagere, Davanagere district of Karnataka state, to study the effect of various weed management practices on weed density, weed dry weight, growth, yield and economics of turmeric. Pre-emergence (PE) application of pendimethalin at 1.0 kg/ha jb two hand weeding on 45 and 75 DAP recorded the highest rhizome yield, weed control efficiency, net returns and B:C ratio (23.2 t/ha, 89.2%, X 1,45,309/ha and 2.50, respectively) in 2014. Whereas, PE application of oxyflourfen at 0.30 kg/hayZ> 2 hand weeding on 45 and 75 DAP recoded the highest rhizome yield, weed control efficiency, net returns and B:C ratio (21.9 t/ha, 89.1%, X 133236/ha and 2.60, respectively) in 2015. Integrated weed management using a broad-spectrum PE herbicide like pendimethalin or oxyflourfen fb 2 hand weedings on 45 and 75 DAP was effective in controlling weeds and obtaining higher yield and economic returns in turmeric.