2007 Fiscal Year Final Research Report Summary
Development of dry-seed broadcasting and adoption of rice cultivars through farmer participation in Northeast Thailand
| Project/Area Number |
16405038
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Boundary agriculture
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MORITA Shigenori The University of Tokyo, Graduate School of Agricultural and Life Sciences, professor (00143404)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAGISHI Junko The University of Tokyo, Graduate School of Agricultural and Life Sciences, associate professor (60191219)
ABE Jun The University of Tokyo, Graduate School of Agricultural and Life Sciences, assistant (60221727)
KAMOSHITA Akihiko The University of Tokyo, Asian Natural Environmental Science Center, associate professor (10323487)
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| Project Period (FY) |
2004 – 2007
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| Keywords | rainfed lowland / agricultural technology / direct seeding / farm survey / cultivar / Thailand / Cambodia |
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| Research Abstract |
The following findings were obtained for yield improvement of dry-seed broadcasting in rainfed rice producing areas in Northeast Thailand. (1) Characterize the rainfed lowlands into drought prone upper fields, flood prone lower fields, and intermediate fields that occupied majority of the areas, (2) Yield did not decrease up to 30kg/ha of seed rates under intermediate and lower fields when the growth conditions were favourbale, (3) Earlier seeding (e. g. April, May) of photoperiod sensitive cultivars with intermediate growth duration (e. g. KDML105) was likely to result in yield reduction except under very low fields, (4) Nutrient management during later growth stage was important to maintain biomass production after heading for rainfed lowland cultivars in order to obtain yields higher than 4 t/ha under intermediate and lower fields, (5) Harrowing, which often is omitted for laborsaving, had a positive effect on yield improvement, particularly in weedy fields, (6) Combination of row s
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eeding and interrow weeding yielded higher than the conventional dry-seed broadcasting in fields with unfavourable water availability, (7) Some early maturing cultivars yielded as high in direct seeding under intermediate and lower fields with favorable growing conditions. The future challenge is to use modeling to understand the effectiveness and limitation of dense seeding by farmers particularly under unfavorable conditions, and to invent a simple row seeding device to accelerate adoption of alternative use of row seeding.
Thai government has regulated transfer of rice seeds (e. g. jasmine rice), and encouraged to add values such as "organic rice" or "good agricultural practice", considering the global situations of advancement of biotechnology by global enterprises and the issue of International Treaty for Food and Agricultural Plant Genetic Resources (2004). Although some NGO worked on conservation and utilization of Thai traditional rice varieties, rice cultivar variety is much less in Thailand than in its neighbor country Cambodia, on a farm level. As there are uncertain factors such as increment of global rice market, international rice price changes, and development and adoption of agricultural biotechnology in Asia, it is needed to continue to monitor rice genetic resource management and rice production in Thailand. Less
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[Journal Article] Farmers' choice of direct seding and transplanting and their yielding ability in rainfed lowlands in Northeast Thailand and Northwest Cambodia.2006
Author(s)
Kamoshita. A., Hayashi, S., Ikeda. H., Jongdee, B., Makara, O., In, S., Kojima. N.
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Journal Title
International Conference Mekong Research for the People of the Mekong Thailand, Chiang Rai, 18-21 October 2006.
Pages: 96-102
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Farmers' choice of direct seeding and transplanting and their yielding ability in rainfed lowlands in Northeast Thailand and Northwest Cambodia.2006
Author(s)
Kamoshita, A., Hayashi, S., Ikeda, H., Jongdee, B., Makara, O., In, S., Kojima, N.
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Journal Title
International Conference Mekong Research for the People of the Mekong Thailand, Chiang Rai
Pages: 96-102
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Agronomic research for local people-oriented technology development in rainfed rice fields in Thailand2004
Author(s)
Saka, H., Morita, S., Yamagishi, J., Abe, J., Kamoshita, A.
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Journal Title
Field Production Science Center & Thai Research Exchange Group, Graduate School of Agricultural and Life Sciences, The University of Tokyo
Pages: 55
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Fanners' choice of direct seeding and transplanting and their yielding ability in rainfed lowlands in Northeast Thailand and Northwest Cambodia.2006
Author(s)
Kamoshita, A., Hayashi, S., Ikeda, H., Jongdee, B., Makara, O., In, S., Kojima, N.
Organizer
International Conference Mekong Research for the People of the Mekong
Place of Presentation
チェンライ(タイ)
Year and Date
20061018-20061021
Description
「研究成果報告書概要(和文)」より
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[Presentation] Farmers' choice of direct seeding and transplanting and their yielding ability in rainfed lowlands in Northeast Thailand and Northwest Cambodia.2006
Author(s)
Kamoshita, A., Hayashi, S., Ikeda, H., Jongdee, B., Makara, O., In, S., Kojima, N.
Organizer
International Conference Mekong Research for the People of the Mekong
Place of Presentation
Chiang Rai (Thailand)
Year and Date
20061018-20061021
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Farmer's choice and land productivity between direct seeding and transplanting in rainfed lowlands in Northeast Thailand and Northwest Cambodia2006
Author(s)
A. Kamoshita, S. Hayashi, H. Ikeda, J. Yamagishi, A. Kotchasatid, B. Jongdee, S. Chea, M. Ouk, S. Leang, S. In, C. C. Sophorn, N. Kojima, M. Hamano, K. Tokida
Organizer
7th European International Farming System Association Symposium
Place of Presentation
ワーゲンニンゲン大学(ワーゲニンゲン)
Year and Date
20060507-20060510
Description
「研究成果報告書概要(和文)」より
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[Presentation] Farmer' s choice and land productivity between direct seeding and transplanting in rainfed lowlands in Northeast Thailand and Northwest Cambodia2006
Author(s)
A. Kamoshita, S. Hayashi, H. Ikeda, J. Yamagishi, A. Kotchasatid, B. Jongdee, S. Chea, M. Ouk, S. Leang, S. In, C. C. Sophorn, N. Kojima, M. Hamano, K. Tokida
Organizer
7th European International Farming System Association Symposium
Place of Presentation
Wagenningen Univ. (Wagenningen)
Year and Date
20060507-20060510
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Preliminary study on direct seeding cultivation around Ubonratchathani, Northeast Thailand.2006
Author(s)
Kamoshita, A., Hayashi, S., Yamagishi, J., Kotchasatid, A., Jongdee, B.
Organizer
Japanese Society of Tropical Agricultural Sci. 99 conference
Place of Presentation
Tsukuba International Conference Venue (Tsukuba)
Year and Date
20060326-20060327
Description
「研究成果報告書概要(欧文)」より
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[Presentation] タイ王国東北部の天水田における稲作と根系の機能2005
Author(s)
林怜史, 鴨下顕彦, 山岸順子, N. Supapoj, A. Kotchasatid, B. Jongdee, D. Harnpichitvitaya
Organizer
日本作物学会第219回講演会
Place of Presentation
日本大学(藤沢)
Year and Date
20050330-20050331
Description
「研究成果報告書概要(和文)」より
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[Presentation] Rice production and root system function in rainfed lowland in Northeast Thailand.2005
Author(s)
Hayashi, S., Kamoshita, A., Yamagishi, J., Supapoj, N., Kotchasatid, A., Jongdee, B., Harnpichitvitaya, D.
Organizer
Japanese Crop Sci. Society 219 conference
Place of Presentation
Nippon Univ. (Fujisawa)
Year and Date
20050330-20050331
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Effects of plant density on grain yield of rice (Oryza sativa L.) in Northeast Thailand.2004
Author(s)
Satoshi, H, Kato, Y, Kamoshita, A., Yamagishi, J., Supapoj, N., Kotchasatid, A., Jongdee, B., Harnpichitvitaya, D.
Organizer
Japanese Crop Sci. Society 217 conference
Place of Presentation
Tamagawa Univ. (Machida)
Year and Date
20040329-20040330
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Genotypic variation in grain yield of rainfed lowland rice (Oryza sativa L.) in Northeast Thailand.-Adaptation to different toposequence-2004
Author(s)
Hayashi, S., Kato, Y, Kamoshita, A., Yamagishi, J., Supapoj, N., Kotchasatid, A., Jongdee, B., Harnpichitvitaya, D.
Organizer
Japanese Society of Tropical Agricultural Sci. 95 conference
Place of Presentation
Tsukuba Univ. (Tsukuba)
Year and Date
20040327-20040328
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Genotypic variation in grain yield of rainfed lowland rice (Oryza sativa L.) in Northeast Thailand. -Requirement for direct seeding-2004
Author(s)
Hayashi, S., Kato, Y, Kamoshita, A., Yamagishi, J., Supapoj, N., Kotchasatid, A., Jongdee, B., Harnpichitvitaya, D.
Organizer
Japanese Society of Tropical Agricultural Sci. 95 conference
Place of Presentation
Tsukuba Univ. (Tsukuba)
Year and Date
20040327-20040328
Description
「研究成果報告書概要(欧文)」より
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[Book] Agronomic research for local people-oriented technology development in rainfed rice fields in Thailand2004
Author(s)
Saka, H., Morita, S., Yamagishi, J., Abe, J., Kamoshita, A.
Total Pages
55
Publisher
Field Production Science Center & Thai Research Exchange Group, Graduate School of Agricultural and Life Sciences, The University of Tokyo
Description
「研究成果報告書概要(和文)」より
