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Agricultural Adaptations to Climate Change
1. AGRICULTURAL ADAPTATIONS TOAGRICULTURAL ADAPTATIONS TO
CLIMATE CHANGE IN COASTALCLIMATE CHANGE IN COASTAL
ECOSYSTEMS OF BANGLADESHECOSYSTEMS OF BANGLADESH
Dr. Md. Abdus Salam
Post Doctoral Fellow, Kansas State University and
Principal Scientific Officer
Bangladesh Agricultural Research Council, Dhaka 1
3. Bangladesh predominantly is an
agricultural country with a population
of over 160 million
Around 60% of the population
engaged in agriculture
The total area is 14.85 million ha of
which 62% are arable (8.2 million ha)
Irrigated area covers 55% of the total
cultivated land
Background
3
4. Agriculture contributes about 20%
to the national economy, which
includes -
Crops(12.3%),Fisheries(3.7%)&
Livestock (4%)
Long history of Agricultural
Research - started in 1908
Background
4
5. Major crops are rice, wheat, jute,
maize, potato, fruits, vegetables,
pulses, oilseed, and spices
Fisheries (inland and marine) and
livestock are also productive sector
Background
5
9. Background
9
The coastal area: 44,932 km2 or
30% of the country
27% of the total population live in
coastal area
The coastal areas cover more than
35% of the cultivable lands
10. Background
10
Around 53% of the coastal areas are
affected by salinity
The organic matter content of the soils
is also pretty low (1.0-1.5%).
Deficiencies of N and P are quite
dominant in saline soils
Excluding Sundarbans, the remaining
coastal region is used for agriculture
11. 11
4%
54%
42%
Flood Erosion Storm surges
CycloneCyclone
Coastal Tidal SurgeCoastal Tidal Surge
Salinity IntrusionSalinity Intrusion
River Bank ErosionRiver Bank Erosion
Unsettled Char LandsUnsettled Char Lands
High incidence of poverty and malnutritionHigh incidence of poverty and malnutrition
Climate Change Hazards
16. 16
Climate Change reduces rice
production an average 3.9 % each year
4°C temperature increase would have a
sever impact on food production,
resulting 28% reduction for rice and a
68 % reduction for wheat
Bangladesh losses about 0.5 million
tones of rice annually as a result of
floods
Climate Change Impact on
Coastal Area
17. Bangladesh Forest Research InstituteBangladesh Forest Research Institute
Bangladesh Tea Research InstituteBangladesh Tea Research Institute
Bangladesh Fisheries Research InstituteBangladesh Fisheries Research Institute
Bangladesh Livestock Research InstituteBangladesh Livestock Research Institute
Bangladesh Sugarcane Research
Institute
Bangladesh Sugarcane Research
Institute
Bangladesh Institute of Nuclear
Agriculture
Bangladesh Institute of Nuclear
Agriculture
Bangladesh Jute Research InstituteBangladesh Jute Research Institute
Bangladesh Rice Research InstituteBangladesh Rice Research Institute
Bangladesh Agricultural Research
Institute
Bangladesh Agricultural Research
Institute
Standing Committee:
Budget & Audit
Research Program
Standing Committee:
Budget & Audit
Research Program
Schedule ASchedule ASchedule A
Executive Council
BARC
Executive CouncilExecutive Council
BARCBARC
Schedule BSchedule BSchedule B
Soil Resources Development InstituteSoil Resources Development Institute
Bangladesh Sericulture Research &
Training Institute
Bangladesh Sericulture Research &
Training Institute
Cotton Development BoardCotton Development Board
18. 18
Flow Chart of Technology Development
& Adoption
Identification of Climate ImpactsIdentification of Climate Impacts
Research & Development of TechnologiesResearch & Development of Technologies
Adaptive TrialAdaptive Trial
Adoption by FarmersAdoption by Farmers
Dissemination of TechnologiesDissemination of Technologies
19. 19
AdjustmentAdjustment in natural or humanin natural or human
systems in response tosystems in response to actualactual oror
expected climate stimuli or theirexpected climate stimuli or their
effectseffects, which moderates harm or, which moderates harm or
exploits beneficial opportunities (IPCC,exploits beneficial opportunities (IPCC,
2001)2001)
Many types of adaptation,Many types of adaptation, egeg.,.,
autonomous adaptation andautonomous adaptation and plannedplanned
adaptationadaptation
Adaptation
20. 20
StressStress (salinity and flood) tolerant(salinity and flood) tolerant
varietiesvarieties
Short durationShort duration cropscrops
Innovative farmingInnovative farming practices (floatingpractices (floating
gardens, irrigation efficiency)gardens, irrigation efficiency)
CropCrop diversificationdiversification
Changing/shiftingChanging/shifting cropping patterncropping pattern
WaterWater ManagementManagement
Key Adaptation Technologies in
Agriculture at Coastal Bangladesh
29. Released: 2012, Duration: 125-130 days, Salinity tolerance : Seedling stage: 12-14
ds/m, Mature stage: 10-12 ds/m, Yield: Boro: 5.0-5.5 t/ha in saline condition, 6.5 t/ha
in normal condition, Aman: 4.0 t/ha in saline condition, 5.0 t/ha in normal condition,
Total cost: 62450/ha, Total income: 82500/ha, Benefit Cost Ratio: 1.32
Saline Tolerant Rice Varieties
30. Jan Feb Mar April May June Jul Aug Sep Oct Nov Dec
BR47 BR23
1. BRRI dhan47-Fallow-BR23
2. BRRI dhan47-Fallow-BRRI dhan40,
3. BRRI dhan47-Fallow-BRRI dhan41
4. BRRI dhan47-Fallow-BRRI dhan44.
5. Fallow-Fallow-Local Cultivar
Pattern yield 7.5 -8 t/ha
Existing pattern yield 2.7 t/ha
Soil Salinity 8.4 dS/m in Feb.
Cropping patterns for saline ecosystem
31. 31
Use of mini pond for supplemental irrigation
Sweet water preservation in canal
Use of PBC Pipe to reduce irrigation loss
Water Management Technologies
32. Water Management
Improved Salinity Management Techniques
Using drip irrigation or manual
pump irrigation methods in
raised bed with mulch, farmers
can grow horticultural crops like
tomato, chili, watermelon etc. It
can reduce soil salinity
substantially (10 dS/m to only
4.5 dS/m)Drip Irrigation layout
Tomato Watermelon Chilli
33. 33
Components Net income
(Tk.ha-1)
BR23+mixed fish 62,470/$791
BR23+Tilapia 71,685/$907
Morichsail+Tilapia 50,573/$640
BR23 only 23,500/$297
Morichsail only 20,015/$253
Farm level agro-economic performance
of rice-fish culture at Dacope
36. 36
Saline Tolerant Wheat Varieties
BARI GOM 27
Resistant to LR and tolerant to
BpLB diseases
High yield potential (4.0-5.4 t/ha)
Resistant to stem rust race UG 99
BARI GOM 28
High yielding(4.0–5.5 t/ha)
Resistant to leaf rust &
tolerant to Leaf Blight
diseases
Very early in maturity (102-
108 days)
Tolerant to terminal heat
stress & salinity(6-8 ds/m)
BARI Gom 27
BARI Gom 28
37. Heat tolerant, High yielding
Resistant to stem rust
Heat tolerant, High yielding
Tolerant to salinity
BARI gom 25
BARI gom 26
38. Performance of new wheat variety
(BARI Gom 23) in southern parts of
Bangladesh
39. BARI GOM 25
Yield: 3.1 mt/ha
Farmers’ Field at Amtali, Borguna
Salinity range: 6-8 dS/m
BARI GOM 26
Yield: 3.6 mt/ha
Wheat Cultivation in Coastal
Region
40. 22
’ed - -T. )
21
- T. )
BARI Hybrid Maize 7 BARI Mungbean 6
BARI Potato BARI Hybrid Maize 3
BARI varieties Performance in saline area
41. • Suitable for cultivation
in the coastal region
(salinity level : 3.72-5.05
dS/m)
• Moderately resistant to
Alternaria disease
• High yielding(2.0-2.2
t/ha)
BARI Sarisha 16
MUSTARD
BARI Sarisha 15
Oil Seed Variety for Coastal Area
42. Duration: 80 days, Yield: Average 1.9 t/ha, Total cost: 28105/ha, Total income:
77050/ha, Benefit Cost Ratio: 2.75
43. BARI Chinabadam 8/Peanut
Yield: 2.5 – 2.7 t/ha
Duration –
Rabi: 140-150 days
Kharif: 125 –140 days
BARI Chinabadam 9
Yield: 2.5 – 2.8 t/ha
Duration –
Rabi: 140-150 days
Kharif: 120 –130 days
Oil Seed Variety for Coastal Area
44. BINA Chinabadam 1
Salinity Tolerant: 8ds/m
Yield: 2.0 – 2.3 t/ha
Duration –
Rabi: 140-150 days
Kharif: 120 –130 days
Oil Seed Variety for Coastal Area
Salinity Tolerant: 8ds/m
Yield: 2.0 – 2.4 t/ha
Duration –
Rabi: 140-150 days
Kharif: 120 –140 days
BINA Chinabadam 1
BINA Chinabadam 2
49. After 7 days continuous irrigationMaize in irrigated condition
Out of 15 crosses 3 promising
water logged tolerant materials
were found.
Yield range:
7.9 - 8.9 t/ha waterlogged
condition &
10.7-11.7 t/ha in control
condition.
Waterlogged Tolerant Maize
50. Ovoid shaped & shiny
light green fruit
35 - 40 fruits/plant
Plants moderately
resistant to bacterial
wilt, resistant to foot
rot.
Yield 55 - 60 t/ha
Long cylindrical deep
purple fruits
Tolerant to bacterial
wilt
40 - 50 fruits/plant
Fruits can be harvested
in 55-65 days
Yield 55 - 60 t/ha
BARI Hybrid Begun 4 BARI Hybrid Begun 3
Moderately Saline Tolerant Vegetable
51. Tomato in raised bed with mulchBARI Derosh 1
BARI Puishak 1
Moderately Saline Tolerant Vegetable
BARI Puishak 2
57. BARI Aam-4 (Hybrid)
Fruit wt. 600g
• Regular bearer
• Fruiting season: Late variety
• Skin colour: Slightly Yellow
• Pulp colour: Yellow
• Very sweet (TSS 24%)
• Yield:15-20 t/ha
Homestead Fruit in Coastal Area
58. BARI Bilati Gaab 1
• High yield (372 fruits, 121
kg/plant)
• Large fruit (325g)
• Tasty & sweet (TSS 15%)
• High edible portion (72.15%)
Homestead Fruits in Coastal Area
BAU Kotbel 1
• High yield (10-12 t/ha)
59. 59
Saline Tolerant Coconut Varieties
High yielding(75-95/yr.)
Tolerant to Salinity
High yielding(65-75/yr.),
Tolerant to Salinity
BARI Narikel-2
BARI Narikel-1
60. 60
Saline Tolerant Fruits Varieties
High yielding(30-35t/ha)
Tolerant to Salinity
High yielding(15-17t/ha)
Tolerant to Salinity
BARI Amra-2
BARI Sapota-3
63. High yielding(110-160t/ha),
Tolerant to Salinity 4-18ds/m
High yielding(90-120t/ha),
Tolerant to Salinity 4-18 ds/m
Ishordi-37
Saline Tolerant Sugarcane Varieties
Ishordi-41
71. 71
Problems of Adaptation
Differential adaptation rates due to
cost involvement
Salinity level fluctuation
Migration
Polder missmanagement
Lack of training (Floating
Gardening)
Lack of marketing channel
72. 72
Future Research
Needs to develop wide range salinity
tolerant varieties
Needs to develop submerged salt
tolerant varieties
Strengthen research on cropping
pattern & water management
Thrust should be given on integrated
farming system
Socio-economic studies on factors
and challenges of adaptation in
agriculture
73. This is our dream for the coastal zoneThis is our dream for the coastal zone
to have good cropsto have good crops
73
Thank You Very Much........Thank You Very Much........