"Africa rice farming system"
Development of sustainable rice cultivation and food production system in Africa
Related Research Program
Food
2025-03-26
背景
サブサハラアフリカでは、4人に1人が慢性的な飢餓状況にあり、世界で最も食料安全保障が立ち遅れています。地域の食料を安定的に確保し、SDGsに掲げられた飢餓の撲滅を実現するためには、不安定化する栽培環境に適応し、水や養分などの限られた資源を有効に活用できる食料生産技術が求められます。そこで、地域の基幹作物であるコメの増産と人々の栄養改善につながる新たな技術や知見を創出し、稲作を中心とした持続的な食料生産システムの構築を目指します。
サブサハラアフリカにおけるコメ（精米ベース）の生産量と消費量の推移
（出典：USDA Production, Supply Distribution Online at https://apps.fas.usda.gov/psdonline/app/index.html#/app/home）
不安定な水環境、養分供給に乏しい風化土壌、農家の肥料投入力の低さにより、イネの生産性が制限されている。
プロジェクト目標
コメ生産量の増加に有効な水管理技術、育種素材および栽培技術と地域の限られた資源を有効活用して、栄養改善に資する稲作を中心とした持続的な食料生産技術を開発し、対象国に提供します。
不安定な生産環境への適応性や栄養性・市場性が強化された育種素材の開発
水と土壌養分を有効に活用し、かつ、コメ増産と農家の栄養改善・所得向上に繋がる食料生産システムの開発と評価
研究課題構成
- アフリカにおける水田稲作のポテンシャル解明とその最大化のための技術開発
- アフリカの食料増産と栄養改善に資するイネと野菜の育種素材開発
- 栄養改善と所得向上に繋がる資源利用に優れたイネ生産技術・システムの開発と影響評価
対象国
マダガスカル、タンザニア、ギニア
成果の対象者・受益者
プロジェクト実施国試験研究機関、普及組織（員）、他国試験研究機関、国際試験研究機関、国際開発プロジェクト
プロジェクトリーダー
辻本 泰弘（生産環境・畜産領域）
プロジェクトポスター
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】
Related Pages
JIRCAS Report
Research Contributing to Poverty Reduction, Nutrition Improvement, and Promotion of Sustainable Agriculture in Madagascar — JIRCAS Project Provisionally Selected for SATREPS Program
As a newly adopted research topic (biological resources field) in FY2020 of SATREPS (International Science and Technology Cooperation Program for Responding to Global Issues), which is jointly implemented by the Japan Science and Technology Agency (JST) and the Japan International Cooperation Agency (JICA), Agricultural Research's proposed project was accepted with some conditions.
JIRCAS Celebrates 30th Anniversary of TICAD with Official Side Event on "Building a Sustainable and Resilient Food System in Africa"
On Friday, December 1, 2023, JIRCAS held a hybrid side event titled "Toward Building a Sustainable and Resilient Food System in Africa" to mark the 30th anniversary of the Tokyo International Conference on African Development (TICAD).
JIRCAS Showcases Agricultural Innovation at Agribusiness Creation Fair 2023
The research results of JIRCAS were exhibited at the "Agribusiness Creation Fair 2023" organized by the Ministry of Agriculture, Forestry and Fisheries (MAFF) and held at Tokyo Big Sight, South Hall 2 from November 20 to 22, 2023.
Press Release
Event, Symposium
Seminar "The application of science and traditional knowledge to foster the utilization of foods obtained from local landscapes for improved nutrition and livelihoods"
Registration period:
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(JST)
- Place
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Vision Center Hibiya (Room 301 – Up to 40) + Webex(Hibiya Marine Building 3rd floor, 1-5-1 Yurakucho, Chiyoda-ku, Tokyo 100-0006)
TICAD8 Official Side Event “Managing African Soil for Food Security and Environmental Sustainability” - Opportunities and Challenges of Agronomy to Solve Low Fertility/Nutrient Bottlenecks -
Registration period:
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(JST)
- Place
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Online (Zoom)
Field Information
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Pick Up849. Enhanced Rice Root Morphology Increases Phosphorus Uptake
Phosphorus, one of the three main plant nutrients, is closely linked to plant growth and yield. It is therefore essential to provide plants with sufficient phosphorus. However, many agricultural areas around the world are deficient in phosphorus, and in developing regions such as Africa, economic constraints make it difficult to purchase enough fertilizer. As a result, crops often suffer from chronic phosphorus deficiency. Through genetic analysis of two rice varieties with contrasting root shapes, JIRCAS has discovered genetic loci that control lateral root development and the number of crown roots in rice, and has shown that these genes play a role in increasing phosphorus uptake by plants in phosphorus-deficient fields. The results of this research are expected to lead to improved rice yields in developing regions where phosphorus deficiency is widespread, and to reduced fertilizer application as a result of improved phosphorus use efficiency in rice.
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Pick Up841. Table Salt for Soil Analysis ! ?
Soils have a unique property called "phosphorus (P) retention capacity," which refers to their ability to bind with phosphates. When soil has a high P retention capacity, the P fertilizer applied in a cropland may bind to the soil before being absorbed by crops. This reduces the efficiency of fertilization. Therefore, P retention capacity is used for fertilization management. Recent studies have shown a close relationship between P retention capacity and soil moisture content. A research team from JIRCAS and the University of Antananarivo in Madagascar used this relationship to develop a method that accurately and easily estimates P retention capacity from soil moisture content, including a clever use of table salt (sodium chloride). -
Pick Up789. Energy Intake and Seasons
One component of food security is stability, and seasonality is a major factor affecting food security, especially for smallholder farmers in developing regions. Even if food is available immediately after harvest, it may not be available before the harvest season.