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SRI-UPDATE
#9 - February 2007
(click
here for subscription information)
To:
SRI-RICE-L@cornell.edu (SRI-UPDATE-L)
From: Norman Uphoff
Subject: SRI-RICE-L #9 (February 26, 2007)
Dear SRI-RICE-L subscriber,
This is the ninth in the SRI UPDATE series that is being sent
out 7-8 times per year. Enhanced
versions of these e-updates
and archives are available on the SRI website.
This url also contains information on subscriptions for other
SRI groups in other countries.
The numbered listing of sections below provides an overview of
the contents of this Update, to let you know what items are included.
To subscribe to the update-only SRI announcement list, instead
of this discussion list, see http://ciifad.cornell.edu/sri/listservs/index.html#update.)
-Norman Uphoff
for CIIFAD SRI Group
++++++++++++++++
1. Tamil Nadu Project in
India Plans for 250,000 ha under SRI
2. Direct-Seeded SRI Permits 40% reduction in Labor Requirements
3. Special Issue of LEISA
Magazine Highlights SRI
4. SRI Results in The Gambia Reported and Explained
5. Monograph
Published on SRI Introduction and Spread in India
6. Data Reported on Use of SRI Methods with Hybrid Rice in Indonesia
7. Bangladesh SRI Network
Reports on 2006 Evaluations
--------------------------------------------------------------------------
1. TAMIL NADU PROJECT IN INDIA PLANS FOR 250,000 HA UNDER
SRI
The World Bank approved on January 23, 2007, the Tamil
Nadu Irrigated Agriculture Modernization and Water-Bodies Restoration
and Management Project. This will rehabilitate and improve >600,000
ha of irrigated land in 63 sub-basins throughout that state. The
project design projects an extension of SRI methods to be used
on at lest 40% of this area (250,000 ha). SRI is identified in
project documents as a "key intermediate outcome indicator" for
project implementation and success. Farmers' productivity gains
from using SRI methods are part of the economic justification for
the project investment.
2. DIRECT-SEEDED SRI PERMITS 40% REDUCTION
IN LABOR REQUIREMENTS
Dr. S. Ramasamy at Tamil Nadu Agricultural University
has provided us the poster which he presented at the 2nd International
Rice Congress in New Delhi last October describing experiments
in which he achieved most of the phenotypic improvements of SRI
with a direct-seeding methodology that cut the number of days of
labor required per hectare by 40%. The poster is online at http://ciifad.cornell.edu/sri/countries/india/intnramasapster06.pdf (898
kb).
This method is essentially the same as one developed four years ago by Mr. Ariyaratna
Subasinghe in Mahaweli System H in Sri Lanka (see pages 1 and 5 of trip report
from 2003: http://ciifad.cornell.edu/sri/countries/srilanka/srilankantrd03.pdf).
The TNAU trials broadcast germinated seed @ 30 kg/ha (saving all of the labor
for nursery management and transplanting) and then weeded with a rotary hoe at
10-12 days after sowing, using row spacings of 20 x 20 cm and 25 x 25 cm, with
a little supplementary hand weeding. Yields were better than with drum seeding,
which is now being adopted in Tamil Nadu to save transplanting labor time and
cost.
Compared with currently recommended SRI methods and conventional rice cultivation
methods, the total labor investment was reduced by 40%. The modified SRI plants
had better plant establishment, better tillering, greater panicle weight, more
filled grains/panicle, and higher grain yield.
3. SPECIAL ISSUE OF LEISA MAGAZINE HIGHLIGHTS SRI
The December 2006 issue of LEISA: Magazine on Low External Input
and Sustainable Agriculture (Vol. 22, No. 4) - devoted to consideration
of Ecological Processes at Work -- focused attention on SRI as a prime example
of this subject. The issue contains the following articles:
-- "The System of Rice Intensification and its implications for agriculture," by
Norman Uphoff
-- "SRI takes root in Nepal," by Rajendra Uprety
-- "Adapting SRI in Tamil Nadu, India," by T. M. Thiyagarajan, and
-- "SRI in context: lessons from the field," by Willem A. Stoop.
These can be accessed by downloading the table of contents for this issue using
this URL:
http://www.leisa.info/index.php?url=magazine-details.tpl&p[readOnly]=0&p[_id]=87898 --
and then clicking on the icon for the respective articles. There are also some
perceptive comments about SRI in the lead-off editorial.
4. SRI RESULTS IN THE GAMBIA REPORTED AND EXPLAINED
Dr. Mustapha Ceesay has published results from his thesis evaluating
SRI in The Gambia, co-authored by his thesis advisors (W. S. Reid, E. C. M. Fernandes
and N. Uphoff), based on trials 2000-2004 at Sapu Research Station. Three spacings
were used for both SRI and conventional methods. Average grain yields were 6.2
vs. 1.8 t/ha, and stover yields were 6.4 vs. 5.0 t/ha. Water efficiency was dramatically
increased, with SRI methods producing 0.62 grams of rice per kg of water vs.
0.10 with standard methods. Net return per hectare was $446 vs. $50. The article
appears in the International Journal of Agricultural Sustainability (4:1,
2006) at http://www.earthscanjournals.com/ijas/004/ijas0040005.htm
5. MONOGRAPH PUBLISHED ON SRI INTRODUCTION AND SPREAD IN INDIA
An extended study by Dr. C. Shambu Prasad on System of Rice Intensification
in India: Innovation History and Institutional Challenges has been published
by the WWF project "Dialogue on Water, Food and Environment" and the
Xavier Institute of Management in Orissa. The WWF project is based at and carried
out in cooperation with ICRISAT in Hyderabad, where Prasad previously conducted
research on innovation policy before taking a teaching and research position
at XIM. The study traces the multiple actors and relationships that have initiated
and accelerated SRI work in India. Prasad has documented his conclusion that "SRI
in India is not a single story with a single message, but several stories with
interrelated messages." The booklet is at:http://www.wassan.org/sri/documents/Shambu_SRI.pdf
(on WASSAN's website) as well as http://www.cgiar-ilac.org/downloads/references/SRI_India_innovation_institutions.pdf
6. DATA REPORTED ON USE OF SRI METHODS WITH HYBRID RICE IN INDONESIA
Shuichi Sato, Nippon Koei leader of the technical assistance team for
the Decentralized Irrigation System Management Improvement Project in Eastern
Indonesia, has sent in some data on SRI paddy yield with hybrid rice in Bali,
from the second dry season in 2006. 24 farmers in Gianyar district used a Long-ping
hybrid rice on 42 hectares, and got an average yield of 13.3 tons/ha, while the
same hybrid variety with conventional methods yielded 8.4 tons/ha, a 58% increase
attributable to SRI practices.
Most of the highest SRI yields reported so far have come from hybrid varieties,
since Prof. Yuan Long-ping, the originator of hybrid rice, began working with
SRI methods in 2000. He has been probably the most eminent proponent of SRI since
then. At the same time, it is noted that many indigenous or local varieties of
rice respond very favorably to SRI methods, with yields in the 6 to 12 t/ha range,
so farmers' profitability can actually be greater with these since they command
a higher price in the market, given consumer preferences.
SRI is thus "neutral" between hybrid and indigenous varieties. Both
benefit from SRI methods, one with highest yield, one with highest economic returns,
so farmers should and can make their own decisions. Sato-san's report, from a
large area, not a trial plot, and under farmers' field conditions, confirms once
more the intrinsic merits of SRI production methods. SRI methods greatly lower
the cost of using hybrids since 80-90% less seed is required than with conventional
practice. Seed cost has been a major barrier to adoption of hybrids because their
seed is much more expensive. SRI thus not only raises hybrid yield but adds to
its economic profitability. Sato would be glad to know from others in the SRI
network about any data that they have on the results of growing hybrids with
SRI method (shu-sato@centrin.net.id).
7. BANGLADESH SRI NETWORK REPORTS ON 2006 EVALUATIONS
The National SRI Steering Committee in Bangladesh has formed a SRI National
Network of Bangladesh (SNNB) with Prof. Muazzam Husain serving as its National
Coordinator. In 2006, the Network was involved in SRI trials by Oxfam Great Britain's
Bangladesh program under its River Basin Project for resource-poor farmers. The
trials found SRI could produce significant benefits under these adverse agroecological
conditions. Farmers received 25% higher yields and achieved profitability 78%
higher than under farmers' current practice, with reduced seed requirements and
other costs. The problems that farmers reported were several, including some
cold injury to seedlings, difficulty in irrigation management, and inadequate
experience. Oxfam is expanding its trials during this current season based on
the favorable results of last season.
ActionAid/Bangladesh also conducted SRI trials last year and has expanded trials
during the current winter (boro)season. Out of 300 farmers participating in the
trials in 2006, the results of 85 were monitored closely. These documented an
average yield increase of 36%, and a large increase in gross margin/ha,
from 15,750 taka/ha with regular methods to 38,650 taka/ha with SRI. More details
including agronomic parameters are given in the Action Aid report (http://ciifad.cornell.edu/sri/countries/bangladesh/bdactionaid0506.pdf).
A SRI Experience-Sharing National Workshop was held at the Department of Agricultural
Extension (DAE) on 11 October 2006, to communicate these and other results to
DAE staff and to policy makers, scientists, professionals, and SRI farmers attending.
The workshop resolved to further expand SRI trials and demonstrations. DAE officials
promised all possible cooperation and suggested that appropriate policy directives
be issued by the Ministry of Agriculture for promoting SRI among farmers. The
SNNB has started collaborating with the Small-Scale Water Resources Development
Sector Project, funded by the Asian Development Bank, to undertake SRI trials
in different regions of the country. Though starting late in the season, a few
pilot demonstration/trial SRI plots have been initiated.
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