rice systems in southeast asia: chll d ihallenges to production - … · 2017. 11. 10. · spikel 0...
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Rice systems in Southeast Asia:h ll d ichallenges to production
FAO/OECD WorkshopRome ItalyRome, Italy
24 April, 2012
Caterina Batello
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Rice in Southeast Asia
• Rice has been feeding Southeast Asia’s population for over 4 thousand years
• It is the central subject of:• economic policy • a determinant of national objectives• an important anchor in the maintenance of political stability• an important anchor in the maintenance of political stability
Year 2000 2020 2050
Population (millions) 520 650 780
Rice production (MT) 150 160 180
Per capita consumption (kg) 270 250 230
Source: Better crops International, Vol. 15, Special Supplement, May 2002
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Drought
• Drought regularly occurs on 23 million ha of rice land in Asia (Pandey et al 2007)23 million ha of rice land in Asia (Pandey et al., 2007)
• Severe droughts in recent years:• India from 2001-2002 production India from 2001 2002 production
decreased by 23% (FAOSTAT)
• Thailand 2003 to 2004 production decreased by 3% (FAOSTAT)decreased by 3% (FAOSTAT)
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Heat sensitive stages in rice1 0 0
et fe
rtili
ty (%
)
4 0
6 0
8 0
1 0 0
Microsporogenesis
D a y re la tiv e to a n th e s is-2 5 -2 0 -1 5 -1 0 -5 0 5 1 0
Spik
ele
0
2 0
4 0
Anthesis
80
100
120
ity (%
) Control
Heat
D a y re la tiv e to a n th e s isSource: Yoshida et al., 1981 in Jagadish ppt 2010
0
20
40
60
80
Spik
elet
fert
ili
0
IR200
6
IR200
6 IR6
N22(481
9)N22
(4819)
N22(626
4)Vand
ana
GenotypesSource: Jagadish et al., unpub in Jagadish ppt 2010Jagadish ppt 2010
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Heat sensitive stages in rice (cont.)
Source: Mittler, 2006 in Jagadish ppt 2010
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Salinity
2008, Gotha, UP, India
Swarna Sub1
• Salinity tolerance is important at both
dli d Swarna
Swarna-Sub1 seedling and reproductive stages of the rice plant
Eastern UP, 2007:Eastern UP, 2007:32 sites comparison32 sites comparisonSwarnaSwarna: 2.69 t/ha: 2.69 t/haSwarnaSwarna--Sub1:3.92 t/haSub1:3.92 t/haSwarnaSwarna Sub1:3.92 t/haSub1:3.92 t/ha
NEFORD & NDUAT in Mackill et al., ppt in 2010
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Traditional varieties and local k l dknowledge
• many varieties and lines of flood resisting rice are still grown by are still grown by farmers and maintained in genebanks
i h • more attention to the local varieties and production systems is p yneeded
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Submergence
• Submergence is increasingly becoming a major production constraint, affecting about 15-20 million ha of rice fields in South and Southeast Asia
• It is causing a loss of up to USD 1 billion every year
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Intermediate heightHigh tilleringLodging resistanceSubmergence toleranceSubmergence toleranceSource: Mackill ppt 2010
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Limitation of current approaches t d t tito adaptation
• Lack of functional models • Lack of functional models capable of representing rice-based farming systems (in Roth ppt 2010)
• Lack of integration of social sciences and weak social sciences and weak capabilities in interdisciplinary and systems science (in Roth ppt 2010)
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Simulation designClimate change AdaptationClimate change Adaptation
Elevated CO2 Increased Temp. Shifting Temp. Panicle tolerance
1.0xCO2
+1
+0
S1
S0
T1
T0
B1 1.5xCO2
2.0xCO2
+2
+3
S2
S3
T2
T3
B1
A1B
2.5xCO2
+4
+5
S4
S5
T4
T5A2
2070 +6 S6 T6
29 year historic weather data superimposed with climate change factors29 year historic weather data superimposed with climate change factors
2070~2100 data
Source: Tao Li ppt 2010
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Adaptation priorities – Bangladesh case studycase study
Capital Collective actions targeted at…
Human improving regional education and health services, community events, increase sharing, raising awareness, improving quality of education and training;
Social improving extension and information access, better planning, improving Social improving extension and information access, better planning, improving networks and social interactions (sense of community), increase membership in formal & non-formal groups;
Natural improving planning, extension services, management strategies, monitoring and improving incentives;monitoring, and improving incentives;
Physical building cyclone centre, improve road networks and infrastructure, funding for modern equipments, improving education;
Financial provide facilities of the formal financial institution, change policies of financial institution, inspire the cooperative system, reduce rate of interest, provide agricultural subsidy.
Source: Iqbal Khan et al 2009Source: Iqbal Khan et al., 2009
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Ecosystem Approach to adaptation, mitigation Intensification through FFSmitigation, Intensification through FFS
• Enhancing productivity • Resource use efficiency• Resource use efficiency• Ecological and economic sustainability• A global survey in 2005 estimated that, by 2008,
10–20 million farmers would have graduated from FFS
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From Integrated Pest Management t FFSto FFS
R d i i id l d b 50% • Reduce insecticide load by > 50% while food production grows with population
• Reduce Highly Toxic Pesticides that are available in country
• Strengthen Institutional Bases for IPM
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Deep Urea Placement
Farmers who use Urea Deep Placement reduce urea use by 78 to 150 kg/ha and increase paddy yields by y g/ p y y y900 to 1 100 kg/ha. The net return with UDP versus broadcasting averages USD188/ha.
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Mali Irrigated RiceIPPM and Conventional Practice
eMean Savingsto Farmers: $ 348 / Ha
41%
IPPM and Conventional Practice
8000
ated
Ric
e 41%
4000
6000
/ Ha
Irrig
a
Median:Yield = 7,187 kgNet value = $1,192
2000
4000
Kg
/
Median:Yield = 5,210 kgNet value = $844
0
2000
N = 23 FFS
IPPM FP
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Challenges• Rising costs of inputs for rice farming• Poor water quality • Poor land availability and management
• Soil nutrient leaching: about USD18.7 billion is spent to replace soil nutrients lost to erosion each year
• Philippines: has lost 50% of irrigated cropland• Thailand: has lost about 32 km2/year• Indonesia: has lost 200 km2/year
• Market balance – import/export demands• the rice export market is highly concentrated • the rice export market is highly concentrated
(Thailand, India, Vietnam, USA and China), this accounts for 81% of the rice global markets
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Conclusions
• Integration of research into adaptive capacity with farming systems modelling ff f l ti h foffers way of selecting such farmer-
preferred adaptation options• Research about stress tolerant species • Increased focus on traditional knowledge• Increased focus on traditional knowledge• Improve knowledge and technology
concerning efficient use of inputs (fertilizers, pesticides)p )
• Increased policy dialogue to develop adaptation and mitigation rice production systems in the framework of international
t h th I t ti l Ri agreements such as the International Rice Commission and the United Nations Framework Convention on Climate Change
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Thank youThank you