Yield and economics of drum-seeded rice (Oryza sativa) as influenced by broad- spectrum herbicides and herbicide mixtures

B.S. SATAPATHY; B. DUARY; S. SAHA; S. MUNDA; T. SINGH; D. CHATTERJEE

doi:10.59797/ija.v65i1.2966

Authors

B.S. SATAPATHY
B. DUARY
S. SAHA
S. MUNDA
T. SINGH
D. CHATTERJEE

DOI:

https://doi.org/10.59797/ija.v65i1.2966

Keywords:

Broad-spectrum herbicides, Drum-seeded rice, Economics, Herbicide combinations, Yield

Abstract

A study was conducted during the summer season of 2015 and 2016 at, Gerua, with 10 weed-control practices, to evaluate the efficacy of different broad-spectrum herbicides and their combinations on performance of drum- seeded rice (Oryza sativa L.) in lowland ecosystem of Lower Brahmaputra Valley Zone of Asom. Results of the ex- periment revealed that Cyperus difformis L., Schoenoplectiella juncoides (Roxb.) Lye; syn, Scirpus juncoides Roxb. among sedges; Echinochloa crus-galli (L.) P. Beaur.; E. glabrescens, Leptochloa chinensis Kossenko (L.) Nees, among grasses; and Anagallis arvensis L. among broad-leaf weeds were dominant in drum-seeded rice. The composition of grasses, sedges and broad-leaf weeds in weedy check at 60 days after sowing (DAS) was 15.1, 71.5 and 13.4% respectively. Crop-weed competition throughout the crop-growth period caused 37.4% grain yield loss. Mechanical weeding by paddy weeder at 20 DAS followed by manual weeding at 40 DAS registered 9.2% lower grain yield than manual weeding twice. Weed-free condition by repeated manual weeding recorded the highest cost of cultivation of 45,000/ha, whereas bensulfuron-methyl + pretilachlor (60 + 600 g/ha) at 10 DAS re- sulted in the lowest cost of cultivation ( 36,000/ha). Though higher grain yield of 5.82 t/ha was recorded in weed- free plots, it did not record higher benefit: cost (B: C) ratio. Bensulfuron-methyl + pretilachlor (60 + 600 g/ha) at 10 DAS recorded the highest B : C ratio (2.28) followed by flucetosulfuron (25 g/ha) at 20 DAS (2.24).

References

Ahmed, S. and Chauhan, B.S. 2014. Performance of different herbi

cides in dry seeded rice in Bangladesh. The Scientific World

Journal, ID729418.14 pages, accessed on 10.08.2018 in

http:P//dx.doi.org/10.1153/2014/279468. Ali, M.N., Prerna, Sah, A., Kumari, G., Izhar, T., Alam, P. and Lakra,

R.K. 2018. Influence of herbicides on growth and profitability of transplanted rice (Oryza sativa L.) in Jharkhand. Journal of Pharmacognosy and Phytochemistry SP1: 401404.

Bhardwaj, R., Singh, M.K., Singh, C.S. and Singh, A.K. 2018. Ef

SATAPATHY ET AL. [Vol. 65, No. 1

ficacy of crop establishment methods on yield and economics of rice under puddled condition. International Journal of Current Microbiology and Applied Science (Special issue 7): 3,6353,631.

Das, T.K., Tuti, M.D., Sharma, R., Paul, T. and Mirjha, P.R. 2012. Weed management research in India: An overview. Indian Journal of Agronomy 57(3rd IAC Special issue): 148156.

Parthipan, T. 2016. Strategies for weed management in drum seeded rice under puddle condition (Oryza sativa L.). International Journal of Forestry and Crop Improvement 7(1): 1418.

Ravisankar, N., Chandrsekaran, B., Raja, R., Din, M., and Chaudhuri, S.G. 2008. Influence of integrated weed management practices on productivity and profitability of wet seeded rice (Oryza sativa). Indian Journal of Agronomy 53(1): 5761. Raghavendra, B.M., Susheela, R., Praveen Rao, V. and Madhavi,

M. 2015. Efficacy of different weed management practices on growth and yield of direct wet seeded rice sown through drum seeder. The Bioscan 10(1): 97101.

Saha, S., Munda, S. and Adak, T. 2016. Efficacy of azimsulfuron against complex weed flora in transplanted rice (Oryza sativa) under rainfed shallow lowland. Indian Journal of Agricultural Sciences 86(2): 186191.

Sangeetha, S.P., Balakrishnan, S.P.A.R and Maheswari, J. 2009. Influence of seeding methods and weed management practices on direct seeded rice. Indian Journal of Weed Science 41(3 and 4): 210212.

Satapathy, B.S., Pun, K.B., Singh, T. and Rautaray, S.K. 2016. Influence of dates of sowing and varieties on growth and yield of direct wet sown early ahu rice (Oryza sativa L.) under flood prone lowland ecosystem of Assam. Annals of Agricultural Research New series 37(1): 15.

Singh, T., Satapathy, B.S., Gautam, P., Lal, B., Kumar, U., Saikia, K. and Pun, K.B. 2017. Comparative efficacy of herbicides in weed control and enhancement of productivity and profitability of rice. Experimental Agriculture doi: 10.1017/ S0014479717000047, pp. 119.

Singh, T., Satapathy, B.S, Pun, K.B. and Lenka, S. 2014. Evaluation of pre-emergence herbicides and hand weeding on weed control efficiency and performance of transplanted early ahu (boro) rice. Journal of Agricultural Technology 1(1): 5256.

Shultana, R., Biswas, J.C., Mamun, M.A.A. and Nahar, L. 2016. Fertilizer and weed management options for direct wet seeded rice in dry season. Bangladesh Rice Journal 20(1): 6575. Sureshkumar, R. and Durairaj, S.N. 2018. Labour-saving weed management practices in transplanted rice. International Journal of Chemical Studies 6(2): 590593.

Teja, K.C., Duary, B., Kumar, M. and Bhowmic, M.K. 2015. Effect of bensulfuron-methyl + pretilachlor and other herbicides on mixed weed flora of wet season transplanted rice. International Journal of Agriculture, Environment and Biotechnology 8(2): 323329.