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Influence Of Weed Interference Period And Planting Spacing On The Weed Pressure And Performance Of Boro Rice Cv. Brri Dhan29

Author

Listed:
  • Md. Hafizul Islam

    (Department of Agronomy, Bangladesh Agricultural University)

  • Md. Parvez Anwar

    (Professor, Department of Agronomy, Bangladesh Agricultural University)

  • Md. Rashedur Rahman

    (Professor, Department of Agronomy, Bangladesh Agricultural University)

  • Md. Sohanur Rahman

    (Scientific Officer, Department of Entomology, Bangladesh Jute Research Institute)

  • Fakhar Uddin Talukder

    (Scientific Officer, Department of Plant Pathology, Bangladesh Jute Research Institute)

  • Md. Tipu Sultan

    (Scientific Officer, Patuakhali sub-station, Bangladesh Jute Research Institute)

Abstract

To study the influence of weed interference period and planting spacing on the weed pressure and performance of Boro rice cv. BRRI dhan29 an experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University from December 2015 to May 2016. The experiment comprised six weed interference periods (viz. weed free, weed free up to 20 DAT, weed free up to 40 DAT and weed free up to 60 DAT, weed free up to 80 DAT and weedy condition) and three spacing of planting (viz.25 cm × 15 cm, 25 cm × 10cm, 25 cm × 20 cm) following randomized complete block design with three replications. The highest number of total tillers hill-1 (14.98), effective tillers hill-1 (12.98), filled grains panicle-1 (117.9), grain yield (5.40 t ha-1), straw yield (7.94 t ha-1) and biological yield (40.53 t ha-1) were found weed free up to 80 DAT. Considering cost and time consuming, best tillers hill-1 (15.88), effective tillers hill-1 (13.88), filled grains particle-1 (121.70) and grain yield (6.14 t ha-1) were found in spacing 25 cm × 15 cm with weed free up to 80 DAT. Weed density and dry weight were increased with the increasing weed interference period but rice grain yield increased gradually with the decreasing weed interference period. Weed free up to 80 DAT can be recommended from economic view point following the spacing of 25 cm × 15 cm for better weed suppression and higher yield of BRRI dhan29.

Suggested Citation

  • Md. Hafizul Islam & Md. Parvez Anwar & Md. Rashedur Rahman & Md. Sohanur Rahman & Fakhar Uddin Talukder & Md. Tipu Sultan, 2020. "Influence Of Weed Interference Period And Planting Spacing On The Weed Pressure And Performance Of Boro Rice Cv. Brri Dhan29," Sustainability in Food and Agriculture (SFNA), Zibeline International Publishing, vol. 2(1), pages 11-20, December.
    • Handle: RePEc:zib:zbsfna:v:2:y:2021:i:1:p:11-20
    DOI: 10.26480/sfna.01.2021.11.20
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    References listed on IDEAS

    as
    1. Bhowmik, S.K. & Sarkar, M.A.R. & Zaman, F., 2012. "Effect of spacing and number of seedlings per hill on the performance of aus rice cv. NERICA 1 under dry direct seeded rice (DDSR) system of cultivation," Journal of the Bangladesh Agricultural University, Bangladesh Agricultural University Research System (BAURES), vol. 10.
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