FFECT OF WEEDING REGIME ON THE PERFORMANCE  OF DIRECT-SEEDED AUS RICE

Md. Farukur  Rahman; Mahtalat  Ahmed; Md. Sarwar  Jahan

doi:10.53808/KUS.2013.11and12.1215-L

Authors

Md. Farukur Rahman Agrotechnology Discipline, Khulna University, Khulna-9208, Bangladesh
Mahtalat Ahmed Agrotechnology Discipline, Khulna University, Khulna-9208, Bangladesh
Md. Sarwar Jahan Agrotechnology Discipline, Khulna University, Khulna-9208, Bangladesh

DOI:

https://doi.org/10.53808/KUS.2013.11and12.1215-L

Keywords:

Weeding regime, Aus rice, BRRI dhan28, Bere Ratna, Kajol Lata

Abstract

A field experiment was conducted to find out the impact of weeding regime on the performance of three Aus rice. The experimental treatment consisted of three varieties of rice viz. BRRI dhan28, Bere Ratna and Kajol Lata, and four weeding regimes viz. no weeding, one hand weeding at 35 days after sowing (DAS), two hand weedings at 20 and 35 DAS and three hand weedings at 20, 35 and 50 DAS. The experiment was laid out in a factorial randomized complete block design with three replications. Eleven weed species belonging to five families infested the experimental plots; Cyperus rotundus L. and Imperata cylindrica (L.) Baeuv. were the dominant. The effect of weeding regime on weed density (except at 20 DAS) and weed dry weight was statistically significant. The results indicated that three hand weedings at 20, 35 and 50 DAS produced the highest number of effective tillers hill-1, number of filled grains panicle-1, 1000-grain weight and grain yield. Among the varieties Bere Ratna gave the highest grain yield.

Downloads

Download data is not yet available.

References

ADB (Asian Development Bank). 2011. Agriculture. pp. 2-3. In: Bangladesh Quarterly Economic Update. Bangladesh Resident Mission, Asian Development Bank, Dhaka, Bangladesh

Bari, M.N. 2010. Effects of herbicides on weed suppression and rice yield in transplanted wetland rice. Pakistan Journal of Weed Sciences Research 16: 349-361

BRRI (Bangladesh Rice Research Institute). 1976. Annual Report for 1973-1974. pp: 7-14. Bangladesh Rice Research Institute (BRRI), Joydebpur, Gazipur

BRRI (Bangladesh Rice Research Institute). 1977. Adhunik Dhaner Chash (in Bengali). Bangladesh Rice Research Institute (BRRI), Joydebpur, Gazipur

Chauhan, B.S. and Johnson, D.E. 2010. Implications of narrow crop row spacing and delayed Echinochloa colona and Echinochloa crus-galli emergence for weed growth and crop yield loss in aerobic rice. Field Crops Research 117: 177-182

Chauhan, B.S. and Johnson, D.E. 2011. Row spacing and weed control timing affect yield of aerobic rice. Field Crops Research 121: 226-231

Farooq, M., Siddique, K.H.M., Rehman, H., Aziz, T., Lee, D.J. and Wahid, A. 2011. Rice direct seeding: Experiences, challenges and opportunities. Soil and Tillage Research 111: 87-98

Gomez, K. A. and Gomez, A. A. 1984. Statistical Procedure for Agricultural Research. 2nd Edition. John Wiley and Sons, Inc., New York

Hassan, M.N., Ahmed, S., Uddin, M.S. and Hasan, M.M. 2010. Effect of weeding regime and planting density on morphology and yield attributes of transplant aman rice cv. BRRI dhan41. Pakistan Journal of Weed Sciences Research 16: 363-377

Khaliq, A. and Matloob, A. 2011. Weed-crop competition period in three fine rice cultivars under direct-seeded rice culture. Pakistan Journal of Weed Sciences Research 17: 229-243

Mamun, A. A. 1988. Crop ecosystem, weed vegetation and weed management in Dakshin Chamuria and Jawar. pp. 300-334. In: Agricultural and Rural Development in Bangladesh (Volume 6). Japan International Cooperation Agency, Dhaka, Bangladesh

Mamun, A. A. 1990. Weeds and their control: A review of weed research in Bangladesh. pp. 45-72. In: Agricultural and Rural Development in Bangladesh (Volume 19). Japan International Cooperation Agency, Dhaka, Bangladesh

Mamun, M.A.A., Sultana, R., Bhuiyan, M.K.A., Mridha, A.J. and Mazid, A. 2011. Economic weed management options in winter rice. Pakistan Journal of Weed Sciences Research 17: 323-331

Manna, G.B. 1991. Weed Management for Increasing Efficiency of Fertilizer. pp. 391-401. Summer Institute of Nutrient Transformation and Management in Flooded Soil-Rice System. Central Rice Research Institute, Cuttack (Orissa), India

Naseem, S. M., Mollah, M. I. U., Ali, M. H. and Tariful, I. 1995. Yield response of upland rice to varying levels of weeding. Bangladesh Journal of Science and Industrial Research 30 (2): 65-71

Rao, A.N., Jhonson, D.E., Sivaprasad, B., Ladha, J.K. and Mortimer, A.M. 2007. Weed management in direct-seeded rice. Advances in Agronomy 93: 153-255

Rodenburg, J., Saito, K., Kaka, R.G., Toure, A., Mariko, M. and Kiepe, P. 2009. Weed competitiveness of the lowland rice varieties of NERICA in the southern Guinea Savanna. Field Crops Research 114: 411-418

Saito, K. 2010. Weed pressure level and the correlation between weed competitiveness and rice yield without weed competition: An analysis of empirical data. Field Crops Research 117: 1-8

Sultana, R. 2000. Competitive ability of wet-seeded boro rice against Echinochloa crusgalli and Echinochloa colonum. M.Sc. Thesis, Bangladesh Agricultural University, Mymensingh, Bangladesh

Zhao, D.L., Atlin, G.N., Bastiaans, L. and Spiertz, J.H.J. 2006. Developing selection protocols for weed competitiveness in aerobic rice. Field Crops Research 97: 272-285.