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JIRCAS Research Projects

Africa rice farming system

"Africa rice farming system"
Development of sustainable rice cultivation and food production system in Africa

We will create new technologies and knowledge that will lead to increased rice production, a key crop in the region, and improved nutrition for the people, with the aim of building a sustainable food production system with resource utilization, centered on rice cultivation.
アフリカのための稲作を中心とした持続的な食料生産システムの構築【アフリカ稲作システム】
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Africa upland farming system

"Africa upland farming system"
Development of soil and crop management technologies to stabilize upland farming systems of African smallholder farmers

Our activities aim to develop and disseminate stable and sustainable land and cultivation management technologies for small-scale farming systems in the African savanna areas, where the natural environmental conditions are very different.
アフリカ小規模畑作システムの安定化に資する生産性・収益性・持続性を改善する土壌・栽培管理技術の開発【アフリカ畑作システム】
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Science and Technology Research Partnership for Sustainable Development (SATREPS) Projects

Project on establishment of the model for fertilizing cultivation promotion using Burkina Faso phosphate rock

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In Burkina Faso, there are 100 million tons of phosphate rock underutilized due to its low quality. Effective utilization of this PR resources must contribute to increasing agricultural productivity.

Fertility sensing and variety amelioration for rice yield (FY VARY) project

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Madagascar is one of the largest rice producers in Africa with a per capita rice consumption twice as high as that of Japan. We will develop rice production techniques to realize high yield even under low fertility conditions and evaluate the impact that adopting such techniques has on local farmers' income and nutritional status.

Research Activities and Results of JIRCAS Projects

TICAD8 Official Side Event “Managing African Soil for Food Security and Environmental Sustainability”
- Opportunities and Challenges of Agronomy to Solve Low Fertility/Nutrient Bottlenecks -

Ethiopia

Ethiopia

Ethiopia (/ˌiːθiˈoʊpiə/; Amharic: ኢትዮጵያ?, ʾĪtyōṗṗyā, ), officially known as the Federal Democratic Republic of Ethiopia (የኢትዮጵያ ፌዴራላዊ ዲሞክራሲያዊ ሪፐብሊክ,… (More)

Ethiopia

Ethiopia

Ethiopia (/ˌiːθiˈoʊpiə/; Amharic: ኢትዮጵያ?, ʾĪtyōṗṗyā, ), officially known as the Federal Democratic Republic of Ethiopia (የኢትዮጵያ ፌዴራላዊ ዲሞክራሲያዊ ሪፐብሊክ,… (More)

Ethiopia

Ethiopia

Ethiopia (/ˌiːθiˈoʊpiə/; Amharic: ኢትዮጵያ?, ʾĪtyōṗṗyā, ), officially known as the Federal Democratic Republic of Ethiopia (የኢትዮጵያ ፌዴራላዊ ዲሞክራሲያዊ ሪፐብሊክ,… (More)

Ethiopia

Ethiopia

Ethiopia (/ˌiːθiˈoʊpiə/; Amharic: ኢትዮጵያ?, ʾĪtyōṗṗyā, ), officially known as the Federal Democratic Republic of Ethiopia (የኢትዮጵያ ፌዴራላዊ ዲሞክራሲያዊ ሪፐብሊክ,… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Ghana

Ghana

Ghana (/ˈɡɑːnə/), officially the Republic of Ghana, is a sovereign unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic… (More)

Tanzania

Tanzania

Tanzania /ˌtænzəˈniːə/, officially the United Republic of Tanzania (Swahili: Jamhuri ya Muungano wa Tanzania), is a large country in Eastern Africa within the… (More)

Tanzania

Tanzania

Tanzania /ˌtænzəˈniːə/, officially the United Republic of Tanzania (Swahili: Jamhuri ya Muungano wa Tanzania), is a large country in Eastern Africa within the… (More)

Benin

Benin

Benin (/bᵻˈniːn/ bǝ-NEEN or /bᵻˈnɪn/ bǝ-NIN; French: Bénin), officially the Republic of Benin (French: République du Bénin) and formerly Dahomey, is a country… (More)

Benin

Benin

Benin (/bᵻˈniːn/ bǝ-NEEN or /bᵻˈnɪn/ bǝ-NIN; French: Bénin), officially the Republic of Benin (French: République du Bénin) and formerly Dahomey, is a country… (More)

Mauritania

Mauritania

Mauritania /mɔːrɪˈteɪniə/ (Arabic: موريتانيا‎‎ Mūrītānyā; Berber: Muritanya or Agawej; Wolof: Gànnaar; Soninke: Murutaane; Pulaar: Moritani; French: Mauritanie… (More)

Mauritania

Mauritania

Mauritania /mɔːrɪˈteɪniə/ (Arabic: موريتانيا‎‎ Mūrītānyā; Berber: Muritanya or Agawej; Wolof: Gànnaar; Soninke: Murutaane; Pulaar: Moritani; French: Mauritanie… (More)

Mauritania

Mauritania

Mauritania /mɔːrɪˈteɪniə/ (Arabic: موريتانيا‎‎ Mūrītānyā; Berber: Muritanya or Agawej; Wolof: Gànnaar; Soninke: Murutaane; Pulaar: Moritani; French: Mauritanie… (More)

Mauritania

Mauritania

Mauritania /mɔːrɪˈteɪniə/ (Arabic: موريتانيا‎‎ Mūrītānyā; Berber: Muritanya or Agawej; Wolof: Gànnaar; Soninke: Murutaane; Pulaar: Moritani; French: Mauritanie… (More)

Publications

2019

  • Hirata, M., Ogawa, R., Gebremedhin, B.G., Sakai, T., Koda, K., Miyazaki, N. Takenaka, K.. (2019) Forest conservation from the perspective of local fuel production and its consumption in the　southern part of Kilite Awlaelo district in the Eastern zone of the Tigray Region, Ethiopia. 沙漠研究, https://doi.org/10.14976/jals.29.4_115
  • Fukuta, Y., Suzuki, T., Yanagihara, S., Obara, M., Tomita, A., Ohsawa, R., Machungo, C.W., Hayashi, N. Makihara, D. . (2019) Genetic variation in blast (Pyricularia oryzae Cavara) resistance in rice (Oryza sativa L.) germplasm from Kenya. Breeding Science, 69:. https://doi.org/10.1270/jsbbs.19065
  • Girma, G., Natsume, S., Takagi, H., Matsumura, H., Uemura, A., Muranaka, S., Gedil, M., Spillane, C., Takagi, H., Terauchi, R., Tamiru, M. . (2019) Identification of candidate flowering and sex genes in white Guinea yam (D. rotundata Poir.) by SuperSAGE transcriptome profiling. PLoS ONE, 14:. https://doi.org/10.1371/journal.pone.0216912
  • Cai, Y.I., Du, Z.M., Yamasaki, S., Nguluve, D., Tinga, B., Macome, F., Oya, T. (2019) Influence of microbial additive on microbial populations, ensiling characteristics, and spoilage loss of delayed sealing silage of Napier grass. Asian-Australasian Journal of Animal, https://doi.org/10.5713/ajas.19.0471
  • Iseki, K., Olaleye, O. and Ishikawa, H.. (2019) Intra-plant variation in seed weight and seed protein content of cowpea. Plant Production Science, https://doi.org/10.1080/1343943X.2019.1677161
  • Kawamura, K., Tsujimoto, Y., Nishigaki, T., Andriamananjara, A., Rabenarivo, M., Asai, H., Rakotoson, T. and Razafimbelo, T.. (2019) Laboratory Visible and Near-Infrared Spectroscopy with Genetic Algorithm-Based Partial Least Squares Regression for Assessing the Soil Phosphorus Content of Upland and Lowland Rice Fields in Madagascar. Remote Sensing, 11:. http://doi.org/10.3390/rs11050506
  • Fukuta, Y., Telebanco-Yanoria, M.J., Hayashi, N., Yanagihara, S., Machungo, C.W., Makihara, D.. (2019) Pathogenicities of rice blast (Pyricularia oryzae Cavara) isolates from Kenya. Plant Disease, 103:. https://doi.org/10.1094/PDIS-04-19-0870-RE
  • Abd El-Halim, A.A. Omae, H.. (2019) Performance assessment of nanoparticulate lime to accelerate the downward movement of calcium in acid soil. Soil Use and Management, https://doi.org/10.1111/sum.12525
  • Tomohiro Nishigaki, Yasuhiro Tsujimoto, Seheno Rinasoa, Tovohery Rakotoson, Andry Andriamananjara, Tantely Razafimbelo. (2019) Phosphorus uptake of rice plants affected by phosphorus forms and physicochemical properties of tropical weathered soils. Plant and Soil, http://doi.org/10.1007/s11104-018-3869-1
  • Koda, K., Girmay, G., Berihu, T. Nagumo, F.. (2019) Reservoir Conservation in a Small Watershed in Tigray, Ethiopia highlands. Sustainability, 11:. https://doi.org/10.339/su11072038
  • Wu, W.C., Chien, H.P., Sakurai, T., Muranaka, S.. (2019) Vertical Price Transmission in the Nigeria Cowpea Market. British Food Journal, https://doi.org/10.1108/BFJ-09-2018-0591
  • 團　晴行, 沖　陽子, 廣内慎司. (2019) ガーナ内陸低湿地の慣行農作業による水田水利施設を補強する植生管理. 熱帯農業研究, 12:. https://doi.org/10.11248/nettai.12.23
  • 團　晴行, 沖　陽子, 廣内慎司. (2019) ガーナ内陸低湿地の水田水利施設における手鎌草刈による被覆植物の抑草・防除技術. 熱帯農業研究, 12:. https://doi.org/10.11248/nettai.12.92

2018

  • Muraoka, R., Jin, S., Jayne, T.S. (2018) Access, Land Rental and Food Security: Evidence from Kenya. Land Use Policy, http://doi.org/10.1016/j.landusepol.2017.10.045
  • M Iiyama, A Mukuralinda, JD Ndayambaje, B Musana, A Ndoli, JG. Mowo, D Garrity, S Ling, V Ruganzu. (2018) Addressing the paradox – the divergence between smallholders’ preference and actual adoption of agricultural innovations. Journal of Agricultural Sustainability, http://doi.org/10.1080/14735903.2018.1539384
  • Koutaro Ould Maeno and Mohamed Abdallahi Ould Babah Ebbe. (2018) Aggregation site choice by gregarious nymphs of the Desert locust, Schistocerca gregaria, in the Sahara desert of Mauritania. Insects, 9:. http://doi.org/10.3390/insects9030099
  • Nasukawa, H, Tajima, R., Muacha, B.I.J., Pereira, M. C. F., Naruo, K., Nakamura, S., Fukuda, M, Ito, T., Homma, K.. (2018) Analyzing soil available phosphorus by the Mehlich-3 extraction method to recommend a phosphorus fertilizer application rate for maize production in northern Mozambique.. Plant Production Science, http://doi.org/10.1080/1343943X.2018.1547649
  • Fukuda, M., Nakamura, S., Nasukawa, H., Naruo, K., Ibraimo,M.M., Kobayashi, K., Oya, T.. (2018) Applicability of the Mehlich 3 Method for the Site-Specific Soil Nutrient Management in Northern Mozambique. Journal of Soil Science and Environmental Management, http://doi.org/10.5897/JSSEM2018.0693
  • Kazuhiro NARUO, Watemua A. CÁSSIMO, Junji KOIDE, Kazutoshi OSAWA, Akira GOTO. (2018) Evaluation of agricultural soil erosion control measures in the Nacala Corridor area, Mozambique. 沙漠研究, 28:. http://doi.org/10.14976/jals.28.2_45
  • Ryunosuke Ogawa, Masahiro Hirata, Birhane Gebreanenia Gebremedhin, Satoshi Uchida, Toru Sakai, Kazuhisa Koda, Koichi Takenaka. (2018) Impact Assessment of Difference in Land Uses on Natural Vegetation in a Semi-Dry Area ~The case study of Adizaboy Watershed in Kilte Awlaelo District of Eastern Tigray Region in Ethiopia~. Environments (MDPI), http://doi.org/10.3390/environments6010002

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  • Technology Showcase for Sub-Saharan Africa
    Focusing on the results of collaborative research conducted by JIRCAS in recent years, we have compiled technologies that can contribute to the development of sustainable food systems, which are expected to be utilized in the Asia-Monsoon region and Sub-Saharan Africa.
    JIRCAS_TechShowcase_Sub-SaharanAfricaen.pdf5.95 MB