Effect of weed-management practices on system of rice (Oryza sativa) intensification under southern dry zone of Karnataka

S. B. YOGANANDA; P. THIMMEGOWDA; G. K. SHRUTHI

doi:10.59797/ija.v64i4.5314

Authors

S. B. YOGANANDA
P. THIMMEGOWDA
G. K. SHRUTHI

DOI:

https://doi.org/10.59797/ija.v64i4.5314

Keywords:

Butachlor, Bispyribac-sodium, Economics, Sequential application, Weeds, Yield

Abstract

A field experiment was conducted during the rainy season (kharif) of 2014 and 2015 at Zonal Agricultural Re- search Station, V.C. Farm, Mandya, Karnataka, to know the effect of weed-management practices on system of rice intensification (SRI) method of rice (Oryza sativa L.) cultivation under southern dry zone of Karnataka. The ex- periment consisted of 8 treatments, replicated thrice in a randomized complete block design. Among the various treatments, weed-free check recorded significantly higher grain yield (6.04 t/ha) and it was found at par with herbi- cide treatment, viz. pre-emergence application of bensulfuron-methyl 0.6% + pretilachlor 6% GR (Londax Power) @ 10 kg/ha fb post-emergence application of bispyribac sodium (Nominee Gold) @ 25 g/ha at 20 days after sow- ing (DAS) (5.53 t/ha). Among the weed the management practices, pre-emergence application of bensulfuron-me- thyl 0.6% + pretilachlor 6% GR (Londax Power) @ 10 kg/ha fb post-emergence application of bispyribac sodium (Nominee Gold) @ 25 g/ha at 20 days after sowing (DAS) found effective in control of all types of weeds and regis- tered higher net monetary returns ( 53,270/ha) and benefit : cost ratio (2.80). Uncontrolled weed growth caused 49.5% reduction in grain yield.

References

Baghel, J.K., Das, T.K., Rana, D.S. and Paul, S. 2018. Effect of weed control on weed competition, soil microbial activity and rice productivity in conservation agriculture-based direct-seeded rice (Oryza sativa)wheat (Triticum aestivum) cropping system. Indian Journal of Agronomy 63(2) : 129136.

Chauhan, B.S. 2012. Weed ecology and weed management strategies for dry-seeded rice in Asia. Weed Technology 26(1): 113.

Das, T.K. 2008. Weed Science: Basics and Applications, pp. 901. Jain Brothers, New Delhi, India.

Farooq, M., Siddique, K.H., Rehman, H., Aziz, T., Lee, D.J. and Wahid, A. 2011. Rice direct seeding: experiences, challenges and opportunities. Soil and Tillage Research 111(2) : 8798.

Ganai, M.A., Hussain, A. and Bhat, M.A. 2014. Bio-efficacy of different herbicides in direct-seeded rice (Oryza sativa) under temperate Kashmir valley conditions. Indian Journal of Agronomy 59(1): 8690.

Gomez, K.A. and Gomez, A.A. 1984. Statistical Procedures for Agricultural Research, edn 2, pp. 680. John Wiley & Sons, New York.

Krishnamurthy, K., Rajashekara, B.G., Raghunatha, G., Jagnath,

M.K. and Prasad, T.V.R. 1975. Herbicidal efficiency index in sorghum. Indian Journal of Weed Science 7(2): 7579.

Kumar, V. and Ladha, J.K. 2011. Direct-seeding of rice: recent developments and future research needs. Advances in Agronomy 111: 297413.

Mahajan, G., Chauhan, B.S. and Gill, M.S. 2013. Dry-seeded rice culture in Punjab State of India: Lessons learned from farmers. Field Crops Research 144: 8999.

Mahajan, G., Chauhan, B.S. and Johnson, D.E. 2009. Weed management in aerobic rice in Northwestern Indo-Gangetic plains. Journal of Crop Improvement 23(4): 366382.

Mani, V.S., Malla, M.L., Gautam, K.C. and Das, B. 1973. Weed killing chemical in potato cultivation. PANS 23(8): 1718. Mishra, M. and Misra, A. 1997. Estimation of integrated pest man

agement index in juteA new approach. Indian Journal of Weed Science 29: 3942.

Mondal, D., Ghosh, A., Bandopadhyay, P. and Ghosh, R.K. 2018. Influence of herbicide mixture on composite weed flora and yield of transplanted rice under system of rice intensification. Journal of Hill Agriculture 9(1): 4954.

Mondal, D., Ghosh, A., Roy, D., Kumar, A., Shamurailatpam, D., Bera, S., Ghosh, R., Bandopadhyay, P. and Majumder, A. 2017. Yield loss assessment of rice (Oryza sativa L.) due to different biotic stresses under system of rice intensification (SRI). Journal of Entomology and Zoology Studies 5(4): 1,9741,980.

Pramer, D. and Schmidt, E.L. 1964. Experimental Soil Microbiology, pp. 613. Burgess Publishing Co., Minneapolis.

Raj, S.K., Syriac, E.K., Devi, L.G., Meenakumari, K.S., Vijayaraghavakumar and Aparna, B. 2015. Impact of new herbicide molecule bispyribac sodium + metamifop on soil health under direct seeded rice lowland condition. Crop Research 50: 18.

Rao, A.N., Johnson, D.E., Sivaprasad, B., Ladha, J.K. and Mortimer, A.M. 2007. Weed management in direct-seeded rice. Advances in Agronomy 93: 153255.

Rao, V.S. 2000. Weed research methodology in field experimentation. pp. 497498. Principles of Weed Science, edn 2. Oxford & IBH, New Delhi.

Sen, S., Kaur, R., Das, T.K., Shivay, Y.S. and Sahoo, P.M. 2018. Bio-efficacy of sequentially applied herbicides on weed competition and crop performance in dry direct-seeded rice (Oryza sativa). Indian Journal of Agronomy 63(2): 230233.

Singh, A.K., Tomar, S.K. and Singh, D.P. 2018. Bio-efficacy of herbicides and their mixture on weeds and yield of rice (Oryza sativa) under ricewheat cropping system. Indian Journal of Agronomy 63(2): 145149.

Teja, K.C., Duary, B. and Dash, S. 2016. Sole and combined application of herbicides on composite weed flora of transplanted rice. Indian Journal of Weed Science 48(3): 254258.