This article Citation:

Shyam Lal, R.P. Dubey, G.K. Das and Tarun Suryavanshi. 2016. Energy budgeting of weed management in soybean . Indian Journal of Weed Science : 48( 4) 394- 399.







Editorial office:

Office Manager
Indian Society of Weed Science
ICAR-Directorate of Weed Research,
Maharajpur, Jabalpur, India 482 004
+91 9300127442 | iswsjbp@gmail.com

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Indian Society of Weed Science
ICAR-Directorate of Weed Research,
Maharajpur, Jabalpur, India 482 004
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Volume Issue Publication year Page No Type of article
48 4 2016 394-399 Full length articles
Energy budgeting of weed management in soybean

Shyam Lal, R.P. Dubey, G.K. Das and Tarun Suryavanshi

DOI: http://dx.doi.org/10.5958/0974-8164.2016.00103.9

Email: shyamlalsahujnkvv@gmail.com
Address: ICAR-Directorate of Weed Research, Jabalpur, Madhya Pradesh 482 004

Keywords:

Energy budget, Herbicide, Indices, Soybean, Weed management



Abstract:

An experiment was conducted at ICAR-Directorate of Weed Research, Jabalpur during Kharif season of 2015 and 2016 in order to assess the energy budgeting of weed management in soybean cultivation. Ten treatments comprising of pendimethalin (750 g/ha PE), pendimethalin (750 g/ha PE) fb imazethapyr (100 g/ha at 20 DAS), pendimethalin (750 g/ha PE) fb 1 HW (at 20 DAS), metribuzin (500 g/ha), metribuzin (500 g/ha) fb imazethapyr (100 g/ha at 20 DAS), metribuzin (500 g/ha PE) fb 1 HW (at 20 DAS), imazethapyr (100 g/ha at 20 DAS), imazethapyr (100 g/ha at 20 DAS) fb 1 HW (at 40 DAS), 2 HW (at 20 and 40 DAS) and unweeded check were laid-out in randomized block design with three replications. Sequential application of pendimethalin 750 g/ha PE fb imazethapyr 100 g/ha at 20 DAS was found to be the most energy efficient weed management strategy and had maximum value of total output energy (71.90 x 103 MJ/ha) and net energy returns (62.32 x 103 MJ/ha). Other parameters like energy ratio (7.50), energy profitability (6.50) and human energy profitability (164.27) were also higher under the same treatment whereas, it recorded less specific energy (11.53 103 MJ/ha) and energy intensity (0.48).





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