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2005 FNCA Biofertilizer Project
Technical Meeting on Sterilization of Carrier by Irradiation
June 20 - 22, 2005
Tokyo, Japan

Technical Meeting on Sterilization of Carrier by Irradiation on 2005 FNCA
Biofertilizer Project took place as follows,
| Date: |
June 20 - 22, 2005 |
| Venue : |
Japan Atomic Industrial Forum, Tokyo, Japan |
| Sponsored By: |
Ministry of Education, Culture, Sports, Science and Technology (MEXT) of
Japan |
| In Cooperation of: |
Japan Atomic Industrial Forum Inc. (JAIF) |
| Participants: |
1 each from Indonesia, Philippines, Thailand, Viet Nam and 13 from Japan,
total 17 |
Opening remarks were delivered by Dr. Sueo Machi, the FNCA Coordinator
of Japan, Dr. Tadashi Yokoyama, Project Leader of Japan and Dr. Tadao Seguchi,
Director, Asia Cooperation Center (ACC), JAIF
In Session 1 and 4, a total five lectures were presented, four
from Japan and one from Thailand.
In Session 2, a total four presentations were made by Indonesia,
Philippines, Thailand and Vietnam. Representatives of participating countries
made presentations on current status of the application of biofertilizer
in their countries. Summary of these presentations is attached as attachment
3.
In Session3, “Implementation Plan of Radiation Sterilization
of Carrier” was discussed. Dr. Machi, the FNCA Coordinator of Japan
presented lead-off speech summarized as attachment 4. Discussion was conducted
about Dr. Machi's speech and in principle agreed upon.
The points discussed and agreed upon were as follows:
Implementation Plan of Radiation Sterilization of Carrier:
Every FNCA participating countries were encouraged to use their
existing irradiation facilities mostly Cobalt 60 to sterilize carrier for
biofertilizer. Some countries have done irradiation using recommended doses.
If have enough time, determination of the sterilizing dose of the specific
carrier used (soil and charcoal for Philippines, filter mud for Indonesia,
peat for Thailand and Vietnam) will be carried out in each country. It
was emphasized that irradiation sterilization is better, more economical
and more practical than heat autoclave sterilization especially in case
of larger production. Comparison of gamma irradiation with heat autoclave
for sterilization of carrier was recommended at the laboratory level in
terms of obtaining a better quality of biofertilizer. Irradiated carrier
will be used in the field demonstration to promote the use of biofertilizer
for farmers. For some countries that have difficulty to use irradiation
facility, a letter will be sent by Dr. Machi, the FNCA coordinator of Japan,
to the individual country coordinator to facilitate such matter.

In Session5, “ Plan of Field Trial to Demonstrate the Effect
of Carrier Sterilized by Radiation ” and “ Strategy for Promoting
Biofertilizer Use by Farmers ” were discussed. Dr. Machi summarized
the major problems and solutions for achieving extension of biofertilizer
as attachment 4. All representatives agreed with these views and to take
countermeasures when needed.
Dr Machi also proposed an extension strategy of biofertilizer as
attachment 5. All representatives discussed the proposal and add following
points:
Plan of Field Trial to Demonstrate the Effect of Carrier Sterilized by
Radiation :
At the meeting plan for field trial and field demonstration were discussed.
It was follows :
| 1. Field trial (at least 3 replication) |
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-Selection of location, crops, and size of field trial |
| -Treatments |
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⇒ |
Control (uninoculated) |
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Inoculated |
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Inoculated + chemical fertilizer at reduced amount |
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Chemical fertilizer at recommended rate |
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-Control parameters: |
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Soil properties (biological and chemical) |
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Growth parameters (e.g plant height, biomass etc.) |
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Yield and yield components |
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Quality parameters (depend on the crops) |
| - |
e.g Size, Nutrient value etc. |
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| 2. Field demonstration |
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-Selection of location, crops, and size of field trial |
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-Treatments: Control and applied with biofertilizer |
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-Control parameters: - Yield component and yield |
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-Cost and benefit ratio |
Strategy for Promoting Biofertilizer Use by Farmers :
The points discussed and agreed upon were the best ways to show
and educate the farmers about the importance of biofertilizer. Some country,
for example Thailand, the farmers knew very well about the usefulness of
biofertilizer but their accessibility to the supplier of biofertilizer
is insufficient. Another problem is the products cannot be stored for long
period of time. Another problem is low quality assurance of biofertilizer.
To address these problems, sterilization by gamma irradiation will be considered
to be used.
Promotional activities for biofertilizer application are as follows:
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Government policy of promoting organic agriculture and the advantage of
biofertilizer should be well-announced, |
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For extension campaign, biofertilizer should be distributed to farmers
free of charge, and necessary training should be provided to farmers (some
countries like India, Indonesia, Thailand subsidized the cost of biofertilizer
for the farmers) |
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Television and radio broadcasting |
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Field trial/demonstration |
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Using publication (manuals, pamphlets, brochure), |
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Exhibition: National Agriculture Day, Farmers Gathering Day |
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Tapping farmers organization/Union |
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Optimum combination of biofertilizer and chemical fertilizer should be
determined and developed |
On the second day, participants made technical visit to Takasaki
Radiation Chemistry Research Establishment, Japan Atomic Energy Research
Institute (JAERI). The participants looked around Co-60 Irradiation Facility,
Electron Accelerator and Ion Accelerator. The participants appreciated
the efforts and guidance of the staff of JAERI.
The Minutes were discussed and agreed upon by all participants
in the Meeting. This will be reported at the 2005 FNCA Biofertilizer Workshop
to be held on the second half of January 2006 in the Philippines.
Attachments:
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