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Weed Control in Wet-Seeded Rice

  • Keith Moody (a1)


Increasing transplanting costs in southeast Asia have encouraged farmers to adopt labour-saving crop establishment techniques for rice, such as wet seeding. This practice has been accompanied by an increase in weed problems and a shift in the dominant species to grassy weeds. Other problems are encountered with wet seeding but weeds are the most severe and most widespread constraint. It is impossible to produce rice economically without a well-planned weed control programme. The problems caused by weeds in wet-seeded rice and ways of controlling them by preventive, ecological, managerial, physical and chemical means are discussed in this paper. Herbicides are the most cost-effective weed control method in wet-seeded rice but there is a need to reduce the almost total reliance on them for weed control; cultural practices need to be integrated with judicious herbicide use. Worldwide concerns over environmental issues also need to be addressed.

Control de malezas en el arroz de siembra húmeda



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Ahmed, N. U. & Moody, K. (1982). Weeds in rainfed rice cropping systems as affected by landscape position. In Proceedings of the International Conference on Plant Protection in the Tropics,475480 (Eds Heong, K. L., Lee, B. S., Lim, T. M., Teoh, C. H. and Ibrahim, Y.). Kuala Lumpur, Malaysia.
Anon. (1952). Weed control in paddy. Tropical Agriculture 108:196199.
Anon. (1986). Mechanised rice production projects at Rambai, Mulaut and Kandol. Interim Report for Mulaut, Vol. 2, Appendices. Agricultural Development Corporation, Republic of Korea and Watson Hawksley Asia, Negara Brunei Darussalam.
Anon. (1988). Tropical weeds: A growing menace. Spore 12:46.
Bayer, D. E. & Hill, J. E. (1989). Weed control practices and problems in direct-seeded rice culture. In Weed Problems and their Economic Management, 5356. Seoul, Korea: Asian-Pacific Weed Science Society and Korean Society of Weed Science.
Beyer, E. M. Jr, (1991). Crop protection-meeting the challenge. In Brighton Crop Protection Conference-Weeds,322. Croydon, England:BCPC.
Bhattacharjee, I. R. (1978). Note on the seed rate as cultural method of weed control for direct seeding short duration paddy (Pusa 2–21). Science and Culture 44:504505.
Castin, E. C. & Moody, K. (1989). Effect of different seeding rates, moisture regimes, and weed control treatments on weed growth and yield of wet-seeded rice. In Proceedings of the 12th Asian-Pacific Weed Science Society Conference, 337343. Seoul, Korea.
Chambliss, C. E. & Jenkins, J. M. (1925). Experiments in rice production in south eastern Louisiana. USDA Bulletin 1356.
Cheam, A. H. (1974). Current status of aquatic weed problems in Peninsular Malaysia. Paper presented at the Southeast Asian Workshop on Aquatic Weeds, 25–29 June 1974, Malang, Indonesia.
Cralley, E. M. & Adair, C. R. (1943). Effect of irrigation treatments on stem rot severity, plant development, yield and quantity of rice. Journal of the American Society of Agronomy 35:499507.
Day, B. E. (1972). Nonchemical weed control. In Pest Control Strategies for the Future, 330338. Washington, DC, USA: National Academy of Science.
Day, B. E. (1974). Pest management and the efficient use and safe handling of pesticides in South Vietnam. United States Agency for International Development and University of California at Berkeley, California, USA.
Denning, G. L., Jayasuriya, S. K. & Huey, B. A. (1983). Constraints to the adoption of new weed control technology in rice. In Weed Control in Rice, 345361. Los Baños, Laguna, Philippines: International Rice Research Institute.
Diop, A. M. & Moody, K. (1989 a). Effect of different tillage levels and herbicides on weed growth and yield of wet-seeded rice in the Philippines. Journal of Plant Protection in the Tropics 6:147156.
Diop, A. M. & Moody, K. (1989 b). Effect of rate and time of herbicide application on yield and marginal cost-benefit ratio of wet-seeded rice in the Philippines. Journal of Plant Protection in the Tropics 6:139146.
Estorninos, L. E. Jr & Moody, K. (1982). Farmers' weed control practices in rainfed wetland rice (Oryza sativa) growing areas in Iloilo, Philippines. Philippine Journal of Weed Science 9:1828.
Gooding, E. G. B. (1983). Pesticides in the third world. A comment from the tropics. World Crops 35:9092.
Gopalakrishna Pillai, K. (1977). Integrated weed management in rice. Indian Farming 26(12):17, 19, 21, 23.
Guyer, R. & Quadranti, M. (1985). Effect of seed rate and nitrogen level on the yield of direct wet-seeded rice. In Proceedings of the 10th Asian-Pacific Weed Science Society Conference,304311. Chiangmai, Thailand.
Hare, C. J., Chong, W. C., Ooi, G. T., Bhandhukfalck, A., Nawsaran, A. & Chanprasit, P. (1989). Sofit Super: broad spectrum weed management for wet sown rice in SE Asia. In Proceedings of the 12th Asian Pacific Weed Science Society Conference,165170. Seoul, Korea.
Heinrichs, E. A., Palis, F. V., Moody, K. & Aquino, G. B. (1987). The effects of timing of butachlor application on the economics of direct seeded rice production. Journal of Plant Protection in the Tropics 4:95100.
Ho, N. K., Zuki, I. Md. & Otham, A. B. (1990). The implementation of strategic extension campaign on integrated weed management in the Muda area. In Proceedings of the 3rd International Conference on Plant Protection in the Tropics, Vol. VI, 239241. Genting Highlands, Malaysia.
Mabbayad, B. B. & Obordo, R. A. (1970). Methods of planting rice. In Rice Production Manual (revised edition), 8488. Los Baños, Laguna, Philippines: University of the Philippines, College of Agriculture and International Rice Research Institute.
Matsunaka, S. (1980). Integrated weed control. In Rice Production in Japan Part 3, Miscellaneous, 227231. Kobe, Japan: Japan International Cooperation Agency, Hyogo International Center.
Matsunaka, S. (1982) Essential characteristics of herbicides for rice culture. In Pesticide Chemistry: Human Welfare and the Environment. Vol. 2. Natural Products, 325330 (Eds Miyamoto, J. and Kearney, P. C.). Oxford, England: Pergamon Press.
Moody, K. (1977). Weed control in multiple cropping. In Cropping Systems Research and Development for the Asian Rice Farmer, 281293. Los Baños, Laguna, Philippines: International Rice Research Institute.
Moody, K. (1981). Weed-fertilizer interactions in rice. IRRI Research Paper Series No. 68. Los Baños, Laguna, Philippines: International Rice Research Institute.
Moody, K. (1984). Possible ways of reducing herbicide toxicity in wet-seeded rice. In Proceedings of the 1st Tropical Weed Science Conference, Vol. 1, 1525. Hat Yai, Songkhla, Thailand.
Moody, K. (1990). Postplanting weed control in direct-seeded rice. Paper presented at a Rice Symposium, 25–27 September 1990. Malaysian Agricultural Research Development Institute, Penang, Malaysia.
Moody, K. (1991). Weed management in rice. In Handbook of Pest Management in Agriculture, 2nd Edition, Vol. III, 301328 (Ed. Pimentel, D.). Boca Raton, Florida, USA: CRC Press.
Moody, K. (1992 a). Efficient herbicide use in tropical crops. In Proceedings of the 1st International Weed Control Congress, Vol. 1, 220223. Melbourne, Australia.
Moody, K. (1992 b). Weed management in wet-seeded rice in tropical Asia. Paper presented at a Symposium on the Biological Control and Integrated Management of Paddy and Aquatic Weeds in Asia, 19–25 October 1992, Tsukuba, Ibaraki, Japan.
Moody, K. & Cordova, V. G. (1985). Wet-seeded rice. In Women in Rice Farming, 467480. International Rice Research Institute, Los Baños, Laguna, Philippines.
Moody, K., Estorninos, L. E. Jr, Navarez, D. C. & Roa, L. L. (1983). Effect of weed control practices applied to transplanted rice (Oryza sativa) on succeeding crops. Philippine Journal of Weed Science 10:6576.
Nojima, K. (1966). Theory and practice of rice culture. V. Intertillage. In Theory and Practice of Growing Rice, 396399 (Eds Matsubayashi, M., Ito, R., Takase, T., Nomoto, T. and Yamada, N.). Tokyo, Japan: Fuji Publishing.
Pothecary, B. D. (1970). Mechanical weed control in the tropics. World Crops 22:353354.
Rao, A. N., Venugopal, P. V. K. S. N. & Kondap, S. M. (1985). Weed occurrence and competitiveness against two rice cultivars as affected by method of planting and weed management. In Abstracts of Papers, Annual Conference of the Indian Society of Weed Science 1984, 8182. Anand, Gujarat, India: Gujarat Agricultural University.
Ruthenberg, H. (1977). The adoption of agricultural production services to changing circumstances: some considerations based on the experience with prospects in tropical Africa. Agricultural Administration 4(2):131148.
Serrano, F. B. (1975). Twenty-six years of rice research and development. National Research Council of the Philippines, Diliman, Quezon City, Philippines.
Smith, R. J. Jr, (1960). Nitrogen management in rice infested with barnyard grass. Arkansas Farm Research 9(1):2.
Smith, R. J. Jr, (1967). Weed control in rice in the United States. In Proceedings of the 1st Asian-Pacifc Weed Control Interchange, 6773. Honolulu, Hawaii, USA.
Smith, R. J. Jr, & Moody, K. (1979). Weed control practices in rice. In Proceedings of the 9th International Congress of Plant Protection, Vol. 2, 458462. Washington, DC, USA.
Stone, J. D. & Pedigo, L. P. (1972). Development and economic injury level of the green cloverworm on soyabean in Iowa. journal of Economic Entomology 65:197201.
Stoskopf, N. C. (1985). Cereal grain crops. Reston, Virginia, USA: Reston Publishing.
Turner, R. G. (1983). Weed control: an essential part of rice husbandry. Span 26:1925.
Wah, C. A., Yob, M. S. & Yusoff, E. (1982). The problems in crop establishment of direct-seeded rice. In Proceedings Padi Workshop,5–6 Januay 1982,167178. Bumbong Lima, Province Wellesley, Malaysia:MARDI.

Weed Control in Wet-Seeded Rice

  • Keith Moody (a1)


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