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J. Bhattacharya, M. K. Mondal, E. Humphreys, M. H. Rashid, 
P. L. C. Paul and S. P. Ritu
Traditional Cropping System (Farmers’ Practice) 
Local Rice Varity 
(2-3 t/ha) 
Mungbean/Grass Pea 
(0.5-1.0 t/ha 
Jun Jul...
Objectives 
➢ feasibility of Rice-Rice-Rabi system 
➢ can we fit 3 high yielding crops together? 
➢ optimum sowing date fo...
Proposed cropping pattern
Weed Management 
Hand weeding – plots kept weed free 
Disease and Insect Management 
Recommended practice when needed
BRRI & BARI , 2011 
Rice- ¼ N + all fertilizers- Basal, MT, 5-7 dB PI 
Maize- 1/3 N + all fertilizer- Basal, 25-30, 45-50 ...
Water Management
Crop 
monitoring 
Rice Maize Sunflower 
Phenology & 
Biomass 
Mid tillering 
Panicle initiation 
(PI) 
Flowering 
Physiolo...
Results
❑ Duration of crops in field 
Sunflower- 305 d Maize 321 d 
Aus-aman-rabi is FEASIBLE where 
- able to drain & thus grow H...
System production 14.1 to 19.5 t/ha/yr (3-4 times than 
A M J J A S O N D J F M A 
Sunflower/Maize 
farmers’
✓ 
✓
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh
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Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh

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By J. Bhattacharya, M.K. Mondal, E. Humphreys, M.H. Rashid, P.L.C. Paul, S.P. Ritu

Revitalizing the Ganges Coastal Zone Conference
21-23 October 2014, Dhaka, Bangladesh
http://waterandfood.org/ganges-conference/

Published in: Government & Nonprofit
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Rice-Rice-Rabi systems for low salinty regions of the coastal zone of Bangladesh

  1. 1. J. Bhattacharya, M. K. Mondal, E. Humphreys, M. H. Rashid, P. L. C. Paul and S. P. Ritu
  2. 2. Traditional Cropping System (Farmers’ Practice) Local Rice Varity (2-3 t/ha) Mungbean/Grass Pea (0.5-1.0 t/ha Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
  3. 3. Objectives ➢ feasibility of Rice-Rice-Rabi system ➢ can we fit 3 high yielding crops together? ➢ optimum sowing date for maximum system productivity?
  4. 4. Proposed cropping pattern
  5. 5. Weed Management Hand weeding – plots kept weed free Disease and Insect Management Recommended practice when needed
  6. 6. BRRI & BARI , 2011 Rice- ¼ N + all fertilizers- Basal, MT, 5-7 dB PI Maize- 1/3 N + all fertilizer- Basal, 25-30, 45-50 DAS Sunflower- 1/3 N + all fertilizer-Basal, 20-25, 40-45 DAS
  7. 7. Water Management
  8. 8. Crop monitoring Rice Maize Sunflower Phenology & Biomass Mid tillering Panicle initiation (PI) Flowering Physiological maturity (PM) 8-9 L, tasselling-silking, mid-grain filling, PM 8-9 L, heading, seed development, PM Yield and yield contributing character Panicles/m2 Sterility % 1000 GW Cobs/plant, cob length, ear/cob, 1000 EW Head diameter, seed setting percentage, seeds/head, 1000 SW Grain yield Grain yield Cob yield Seed yield
  9. 9. Results
  10. 10. ❑ Duration of crops in field Sunflower- 305 d Maize 321 d Aus-aman-rabi is FEASIBLE where - able to drain & thus grow HYV aman - fresh water for irrigation of rabi crops
  11. 11. System production 14.1 to 19.5 t/ha/yr (3-4 times than A M J J A S O N D J F M A Sunflower/Maize farmers’
  12. 12. ✓ ✓

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