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【JIRCAS Mail Magazine No.25 (Nov. 2021)】
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The United Nations has designated 2021 as the International Year of
Fruits and Vegetables.
We are pleased to announce that the Symposium, "Fruits and Vegetables–
Research and Action Opportunities for Human and Planetary Health" will
be held online on December 6 (Mon), as an official side event of the
Tokyo Nutrition for Growth Summit (N4G) 2021.
Join us to learn about the latest research on the nutritional and health
benefits of fruits and vegetables.

Symposium details:
https://www.jircas.go.jp/en/symposium/2021/e20211206
Please register at:  at the link below.
https://www.jircas.go.jp/en/symposium/2021/e20211206/entry
Registration is until Dec 6 (Mon) 15:00 JST.

We are looking forward to your online participation.

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■ Latest Topics
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● New Rice Varieties Released in Madagascar ― FyVary varieties show high
productivity under nutrient deficiencies―
Seeds of 2 new varieties (FyVary32 and FyVary85) have been distributed
farmers in Madagascar to start certified seed production. It can
contribute to stable rice production in Africa, which suffers from
phosphorus and other nutrient deficiencies.
https://www.jircas.go.jp/en/release/2021/press202117

● Project Leader TSUJIMOTO Receives the 20th Japan Prize in Agricultural
Sciences, Achievement Award for Young Scientists
The award from the Foundation of Agricultural Sciences of Japan is in
recognition of his achievements in the development and dissemination of
effective rice fertilization technology suitable for cultivation
environments in Africa.
https://www.jircas.go.jp/en/reports/2021/r20211129

● Project Leader FUJITA Among Most Highly Cited Researchers in 2021
Clarivate Listing
Dr. FUJITA Yasunari, Project Leader of the Bioresources and Post-harvest
Division of JIRCAS, has been selected by Clarivate Analytics of the USA
as a Highly Cited Researcher in the field of Plant and Animal Sciences
for the eighth consecutive year.
https://www.jircas.go.jp/en/reports/2021/r20211126

● Ambassador of Dominican Republic to Japan Visits JIRCAS
H. E. Mr. Robert Takata, Ambassador Extraordinary and Plenipotentiary,
Embassy of the Dominican Republic, visited JIRCAS on November 18, 2021,
and exchanged opinions with President Koyama and other executive staff
on the possibility of joint research.
https://www.jircas.go.jp/en/reports/2021/r20211122

● JIRCAS Exhibit at the 13th National Forum on Scientific Research and
Technological Innovation in Burkina Faso
JIRCAS presented an exhibit at the 13th National Forum on Scientific
Research and Technological Innovations held from October 26-30, 2021, at
Joseph Ki-Zerbo University in Ouagadougou, the capital of Burkina Faso,
West Africa.
https://www.jircas.go.jp/en/reports/2021/r20211119

● Tochigi Prefectural Senior High School Students Visit JIRCAS
A group of 40 first year students and 2 teachers from Tochigi
Prefectural Senior High School visited JIRCAS through the "Tsukuba
Science Tour" program on November 11, 2021. This was the second visit
from the school since November last year.
https://www.jircas.go.jp/en/reports/2021/r20211112

● JIRCAS International Symposium 2021 Successfully Held
The JIRCAS International Symposium 2021 on “The Role of Science,
Technology and Innovation in Achieving Sustainable Food Systems in the
Asia Monsoon Region―A Platform for International Collaboration” was
successfully held online on November 17, 2021.
If you are interested in this event, please visit the JIRCAS YouTube
channel.
https://www.youtube.com/watch?v=Uk3Rsq65vlU&t=0s

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■ New Technology and Research Results from JIRCAS
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Phosphorus is essential for the growth of crops.
In this issue, we would like to introduce three research projects on
phosphorus being conducted in West Africa and Madagascar.

● Direct application frequency of phosphate rock for optimal rainfed
rice cultivation in West Africa
The effect of direct application of low-grade phosphate on West African
rice crops was significantly different among agroecological zones in the
first year.
In all agroecological zones, residual effects of phosphate applied in
the previous year were expected, and the optimal application frequency
differed depending on the size of the zone.
https://www.jircas.go.jp/en/publication/research_results/2020_a10

● Effect of rhizosphere soil addition on available phosphorus content in
phosphate rock-enriched compost
When rhizosphere soil was added to sorghum residue composted with
phosphate from Burkina Faso, the number of microorganisms and enzymes
that solubilize phosphate in the compost increased compared to the case
without the addition of rhizosphere soil.
Furthermore, the effective form of phosphorus content in the ripe
compost tended to be higher with the addition of rhizosphere soil.
https://www.jircas.go.jp/en/publication/research_results/2020_a11

● Dipping rice seedlings in phosphorus (P)-enriched slurry at
transplanting increases yield and avoids cold stress under P-deficient
soils in the tropics
The phosphorus immersion treatment, in which a small amount of
phosphorus fertilizer is added to the roots of the seedlings before
transplanting the rice plants, is highly effective in fertilizing soils
with high phosphorus adsorption capacity that are widely distributed in
the tropics.
As a result, the number of growing days is shorter than with
conventional fertilization methods, and this is expected to be effective
in improving poor ripening in cultivation environments where
temperatures drop in the latter half of the growing season.
https://www.jircas.go.jp/en/publication/research_results/2020_b02


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■ Publications
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● JIRCAS Outline Brochure (2021-2022)
https://www.jircas.go.jp/ja/publication/outline/20212022_e

● JIRCAS Newsletter (91)
https://www.jircas.go.jp/ja/publication/jircas_newsletter/91

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■ Call for Submissions
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We welcome your contributions of overseas events and timely local
information.
Please send your article with your name, affiliation (anonymous
submissions are also acceptable), and title to
koho-jircas@ml.affrc.go.jp.
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【Edited and published by】
Information and Public Relations Office
Japan International Research Center for Agricultural Sciences (JIRCAS)
1-1 Ohwashi, Tsukuba, Ibaraki 305-8686, Japan