Weed & Turfgrass Science

The Korean Society of Weed Science & The Turfgrass Society of Korea Archive (한국잡초학회 & 한국잔디학회)
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Effect of Crop Establishment and Weed Control Method on Productivity of Transplanted aman Rice

  • Ali, Mohammad (Bangladesh Institute of Nuclear Agriculture (BINA)) ;
  • Haque Bir, Md. Shahidul (Department of Crop Science Chungnam National University) ;
  • Rahman, Md. Habibur (Bangladesh Institute of Nuclear Agriculture (BINA)) ;
  • Ayesha, Sultana Kaniz (Department of Agronomy and Agriculture Extension, University of Rajshahi) ;
  • Hoque, Aminul (Department of Agronomy and Agriculture Extension, University of Rajshahi) ;
  • Harun-Ar-Rashid, Md. (Agronomy Division, Bangladesh Rice Research Institute, Auditorium Road Joydebpur) ;
  • Islam, Md. Rashidul (Soil Resource Development Institute (SRDI)) ;
  • Park, Kee Woong (Department of Crop Science Chungnam National University)
  • Received : 2018.06.11
  • Accepted : 2018.06.28
  • Published : 2018.06.30
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Abstract

This experiment was conducted to find the most suitable crop establishment method and weed management practices for transplanted aman rice in Bangladesh. Rice variety Bangladesh Rice Research Institute (BRRI) dhan44 was used as planting materials where three crop establishment methods ($T_1$: direct wet seeding by drum seeder; $T_2$: hand broadcasting; $T_3$: transplanting) and four weeding options ($W_1$: Hand weeding (HW); $W_2$: BRRI weeder+HW; $W_3$: Herbicide+HW; and $W_4$: no weeding) were tested. Among the crop establishment methods, the highest grain yield ($5.12t\;ha^{-1}$) was obtained with the $T_3$, while the highest benefit cost ratio (BCR) of 2.08 was found in $T_2$. In case of the weed management method, $W_1$ showed superior results on the plant $density/m^2$ (139.66) at 60 days after transplanting (DAT), grain yield ($4.97t\;ha^{-1}$), and BCR (2.03). On the other hand, the highest plant dry matter (36.20 g) at 60 DAT and the highest yield ($6.10t\;ha^{-1}$) were obtained in a $T_3W_1$ combination. The results of this study show that the productivity of rice during aman season could be most significantly increased with the use of transplanting ($T_3$) alone, hand weeding ($W_1$) alone, or a combination of the two methods ($T_3W_1$).

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References

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