Impacts of tillage operations and microirrigation practices on weed infestation of BRRI Dhan 28

Authors

  • S Khatun Department of Soil, Water and Environment, University of Dhaka, Dhaka-1000, Bangladesh
  • SU Ahmed Department of Soil, Water and Environment, University of Dhaka, Dhaka-1000, Bangladesh
  • SMA Faiz Department of Soil, Water and Environment, University of Dhaka, Dhaka-1000, Bangladesh
  • AHM Mustafizur Rahmana Department of Soil, Water and Environment, University of Dhaka, Dhaka-1000, Bangladesh

DOI:

https://doi.org/10.3329/dujbs.v24i2.46320

Keywords:

Impact, Tillage operation, Microirrigation, Weed infestation, BRRI Dhan 28

Abstract

An experiment was conducted with BRRI dhan 28 following four irrigation treatments (flood, drip, alternate wetting and drying, sprinkler) and two tillage methods (conventional or puddled and unpuddled). Highest number of weed infestation over conventional tillage was observed when herbicide was not applied. Weed biomass was recorded maximum in sprinkler irrigation followed by alternate wetting and drying (AWD) and flood irrigation. The main type of weed in the rice field was sedges. Weed infestation at 20 and 40 days after herbicide application was found to be the highest due to sprinkler irrigation over AWD and flood irrigations. Unpuddled tillage showed lower weed number and biomass over the conventional puddle tillage.

Dhaka Univ. J. Biol. Sci. 24(2): 131-136, 2015 (July)

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Published

2015-06-30

How to Cite

Khatun, S., Ahmed, S., Faiz, S., & Rahmana, A. M. (2015). Impacts of tillage operations and microirrigation practices on weed infestation of BRRI Dhan 28. Dhaka University Journal of Biological Sciences, 24(2), 131–136. https://doi.org/10.3329/dujbs.v24i2.46320

Issue

Vol. 24 No. 2 (2015)

Section

Articles