Skip to main navigation menu Skip to main content Skip to site footer
Plant Science Today (PST)

Research Articles

Vol. 12 No. sp3 (2025): Advances in Plant Health Improvement for Sustainable Agriculture

Effect of weed management on nutrient uptake, yield and economics of direct seeded rice (Oryza sativa L.)

DOI
https://doi.org/10.14719/pst.8413
Submitted
20 March 2025
Published
03-11-2025

Abstract

In direct seeded rice cultivation, weed is the major constraint mainly due to absence of puddling in field. The yield loss due to weed interference is huge, may be up to 100 %. In this perspective, the present experiment was conducted to study the effect weed management on nutrient uptake, grain yield, economics of direct seeded rice. The dry weight and density of weeds were recorded at different growth stages and consequently herbicide efficacy was evaluated. Experimental results revealed that pre-emergence herbicide effectively controlled the germination of grass weeds. Application of bispyribac-sodium as post-emergence following pre-herbicides plus hand weeding effectively reduced the density and biomass accumulation of diverse weed flora in Direct Seeded Rice (DSR). Herbicidal treatment improved the plant height, yield attributes and economics over weedy check. Besides early control of weeds is a better prescription to improve rice yield. Based on the grain yield and Weed Control Index (WCI), it can be concluded that the combined application of pre followed by post plus hand weeding effectively control different weed flushes throughout the crop growth period in DSR.

References

  1. 1. Bouman BAM, Yang X, Wang H, Yang X, Zhao J, Wang Z, et al. Performance of aerobic rice varieties under irrigated conditions in North China. In: Proceedings of 12th International Soil Conservation Organization Conference; 2022; Beijing, China. p. 175-81. https://doi.org/10.1016/j.fcr.2005.08.015
  2. 2. Chauhan BS, Ngoc STT, Doung D, Ngoc PL. Effect of pretilachlor on weedy rice and other weeds in wet-seeded rice cultivation in South Vietnam. Plant Prod Sci. 2012;17(4):315-20. https://doi.org/10.1626/pps.17.315
  3. 3. Pathak H. Greenhouse gas mitigation in Indian agriculture. Ann Agric Res. 2013;34:99-105. https://doi.org/10.1002/ghg.1528
  4. 4. Chauhan BST, Migo PR, Westman D, Johnson E. Post-dispersal predation of weeds in rice fields. Weed Res. 2010;50:553-60. https://doi.org/10.1111/j.1365-3180.2010.00807.x
  5. 5. Choudhary SK, Marahtta S, Chaudhary M. Performance of dry direct seeded rice and weeds on Sesbania brown manuring as compared to farmers practice and chemical control weeds. Int J Appl Sci Biotechnol. 2018;6(3):265-9. https://doi.org/10.3126/ijasbt.v6i3.21181
  6. 6. Veeraputhiran R, Balasubramanian R. Evaluation of new post emergence herbicides for transplanted rice. In: Proc. National Conference on Challenges in Weed Management in Ecosystem Present Status and Future Strategies; 2013; Coimbatore, India. p. 175.
  7. 7. Priya RS, Chinnusamy C, Arthanari PM, Janaki P. Bio-efficacy of new herbicide combination (bispyribac-sodium 4 % + metamifop 10 % SE) on weed control, economics and profitability of direct seeded rice. Int J Chem Stud. 2017;5(4):2349-8528. https://doi.org/10.9734/bjast/2017/34088
  8. 8. Rao S, Kumar JH, Venkataramulu M, Reddy PR. Evaluation of different herbicides in direct seeded rice (Oryza sativa L.). Int J Curr Microbiol Appl Sci. 2019;(12):790-8. https://doi.org/10.20546/ijcmas.2019.812.103
  9. 9. Ghosh D, Singh K, Redu Das A. Weed management through herbicides application in direct seeded rice and yield modeling by artificial neural network. Spanish J Agric Res. 2016;14(2):1003-10. https://doi.org/10.5424/sjar/2016142-8773

Downloads

Download data is not yet available.