International Journal of Chemical Studies
Vol. 6, Issue 2 (2018)
Performance of direct seeded rice as influenced by mulching, nitrogen levels and weed management practices in eastern part of Uttar Pradesh
Author(s): Gargi Goswami, Yashwant Singh and Santosh Kumar
Abstract: A field experiment was carried out in the year 2014 and 2015 at experimental field of Banaras Hindu University, Varanasi, Uttar Pradesh, to evaluate the performance of direct seeded with different mulching, nitrogen levels and weed management practices. Twenty-four treatment combinations consisting of two mulching viz. no mulch and live mulching (brown manuring with sesbania) and nitrogen levels (120 kg ha-1, 150 kg ha-1 and 180 kg ha-1 ) in main plot and four weed management practices viz. weedy check, two hand weeding at 20 and 40 DAS; azimsulfuron @ 30 g/ha + bispyribac-sodium @ 25 g/ha at 10-15 DAS; pendimethalin @ 1 kg/ha at 1-3 DAS fb bispyribac-sodium @ 25 g/ha 15-20 DAS were allocated to sub plots. Effect of mulching resulted in significantly higher grain yield which results in higher net returns and B: C ratio for both the years. Under various nitrogen levels, application of 150 kg ha-1 nitrogen fertilizer resulted in maximum grain yield, net return and B:C ratio. Amongst weed management practices, maximum grain yield and net returns for both the years was recorded under treatment pendimethalin fb bispyribac- sodium @ 25 g/ha which was significantly superior over rest of weed management practices. Weedy check recorded lowest grain yield and net return. Highest B:C ratio in 2014 was observed from the treatment azimsulfuron @ 30 g/ha + bispyribac- sodium @ 25 g/ha, while in 2015 it was found to be highest with treatment pendimethalin fb bispyribac- sodium @ 25 g/ha.
Pages: 700-703 | 370 Views 6 Downloads
How to cite this article:
Gargi Goswami, Yashwant Singh, Santosh Kumar. Performance of direct seeded rice as influenced by mulching, nitrogen levels and weed management practices in eastern part of Uttar Pradesh. Int J Chem Stud 2018;6(2):700-703.