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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(11): 3237-3245
DOI: https://doi.org/10.20546/ijcmas.2017.611.379


Influence of Weed Management on Weed Dynamics and Yield of Machine Sown Pigeonpea [Cajanus cajan (l.) Millsp.] Under Dryland Conditions
P. Kathirvelan*
Tapioca and Castor Research Station, Tamil Nadu Agricultural University, P.G. Palayam, Yethapur – 636 119, Salem, Tamil Nadu, India
*Corresponding author
Abstract:

Field experiments were conducted in rainfed alfisol at Dryland Agricultural Research Station Experimental Farm, Chettinad during Kharif 2013 and 2014 season, to find out the effect of different weed management practices in machine sown pigeon pea (var. VBN 2) under dry land conditions. The experiment consisted of following treatments viz., power weeder weeding once at 20 DAS, power weeder weeding twice at 20 and 40 DAS, power weeder weeding once at 20 DAS + one hand weeding, power weeder weeding twice (20 DAS and 40 DAS) + one hand weeding, mulching with cumbu napier trash @ 5 t/ha, imazethapyr @ 50 g a.i ha-1 and quizalofop ethyl @ 50 g a.i ha-1 at 15 DAS, hand weeding at 20 and 40 DAS and these treatments were compared with unweeded control. The trial was laid out in randomized block design with three replications. The results revealed that power weeder weeding twice at 20 and 40 DAS in integration with one hand weeding effectively controlled all kinds of weed flora which were present in both inter and intra row spacing which reflected in higher mean grain yield of 922 kg ha-1 which might be due to better weed control as reflected in lower weed density (12.1), weed dry weight (14.5) and higher weed control efficiency (WCE) of 79.5 per cent. Early post emergence application of imazethapyr @ 50 g a.i ha-1 at 15 DAS had effectively controlled broad leaved weeds and sedges whereas, quizalofop ethyl @ 50 g a.i ha-1 at 15 DAS was effective against grasses.


Keywords: Influence of weed management, Weed dynamics.
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How to cite this article:

Kathirvelan, P. 2017. Influence of Weed Management on Weed Dynamics and Yield of Machine Sown Pigeonpea [Cajanus cajan (L.) Millsp.] Under Dryland Conditions.Int.J.Curr.Microbiol.App.Sci. 6(11): 3237-3245. doi: https://doi.org/10.20546/ijcmas.2017.611.379