Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business...

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Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh

Transcript of Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business...

Page 1: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Rice post harvest management-Bangladesh context

Debashish Chanda, Ph.DPost Harvest & Business Model Specialist

IRRI Bangladesh

Page 2: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Why is Post-Harvest ManagementImportant?

Food Safety

Quality assurance

Better storage

Better protection from pests

Reduce losses (quantity & quality)

Better marketing opportunities

Page 3: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Post harvest losses in Bangladesh(Present scenario)

Production of Rice per year = around 30 million tons Post harvest loss of Rice = 10 – 15 % per year (approx)

Post harvest loss of F & V = 30 – 40 % per year (approx)

In value losses (all crops) cost = around 30,000 crore BDT

If we can reduce these losses only 3% , we can save 1.0 million tons food crops.

Page 4: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Causes of post harvest losses

Generally these include:

Inefficient harvesting and handling methods Labor shortage during harvest season Harvesting immature and over-mature crops Poor processing techniques Limited drying facility Excess rain-fall expose Lack of storage facilities Rough transportation/load/unload No or poor access to new technology No farmers friendly business model

Page 5: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Post harvest steps

Harvesting (cutting – field drying – hauling)

Stacking/Piling - Threshing (and winnowing)

Moisture control (drying)

Fine cleaning (for seed)

Bagging

Fumigation (for seed)

Storage (paddy storage)

Parboiling & milling

Transportation - Marketing

Page 6: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Harvest Handling

Harvest in dry and sunny weather to avoid extra moisture

Harvest only in appropriate ripening stage (80-85%)

Use combine harvester if available/possible

Do not mix grain for milling with seed production

Take moisture measurement after harvesting

Avoid delays in threshing and drying after harvesting

Page 7: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Harvesting

Harvesting mainly manually (almost 99 %)

Very rare use of reapers and combine harvesters

Combine harvester is more appropriate and cost effective

Page 8: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Field drying

Leaving the cut crop in the field and exposing it to the sun for drying

Panicle drying, usually farmers dry their paddy 2-3 days in the field

Dry up to 17-18%

For seed its better thresh after cutting and then dry

Page 9: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Threshing

Most of the farmers now use mechanical thresher like fully mechanized open drum power thresher and pedal thresher

Page 10: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Drying for storage

Drying traditionally (sun drying)

Use bite test to get m/c

Page 11: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Mechanical dryer

Low-cost seed dryer Flat bed dryer

Mechanical dryer

Page 12: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Cleaning & grading for seed

Pre-cleaning(for both seed and milling)

Fine cleaning(for seed)

Grading(for wheat, barley, maize, etc)

Page 13: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Storage

Page 14: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Storage technology

IRRI Super bagCocoon

Page 15: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Parboiling

Parboiling (5-10 min)

Soaking (min 12 hours)

Parboiling (5-10 min)

Drying (12% - 16%)

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Milling

Page 17: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.

Post harvest flow chart

Harvesting

Pre-drying in field

Threshing Winnowing Drying

StorageParboiling and drying For milling

Processing (pre cleaning, fine

Cleaning, grading)and fumigation

for seed

Harvesting

Packaging

MarketingMarketingUtilization by

consumer

Hauling

Page 18: Rice post harvest management- Bangladesh context Debashish Chanda, Ph.D Post Harvest & Business Model Specialist IRRI Bangladesh.