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Name

Season

Crop variety

Production system

Aus

  • Usually sown in the pre-monsoon season (March/April)

  • Grown during the Kharif season

  • Harvested between July and August

  • Photoperiod insensitive

  • Thermosensitive, perform best under summer conditions

  • Dwarf in stature

  • Grown under rainfed conditions and are prone to both drought and flooding

  • Low yield and poor quality

  • Growing period of 80–120 days

Broadcast

Aman

  • They are sown (broadcast) in March or transplanted following the Aus harvest

  • Mature throughout the Kharif season

  • Flower in October/November

  • Generally cultivated December-January

  • Traditionally the main rice crop in Bangladesh

  • Photoperiod sensitive

  • Longer growth duration (120–160 days) means they are more productive than the Aus rices

  • Produce high-quality, fine white grains

Broadcast and transplanted

Boro

  • Sown in October/November

  • Transplanted around December/January

  • Generally cultivated March-May

  • Photoperiod insensitive

  • Adapted to mild winter conditions, showing some degree of cold tolerance

  • Traditionally, have only been grown on land that retains sufficient water throughout the Rabi season to support crop growth; increasingly adopted with improved irrigation

  • High yield

Broadcast and transplanted; similar to transplanted Aman both in their method of cultivation and crop habit

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Crop estimation methodology

  • Survey method: Major crops are surveyed using direct observation of agricultural fields and facilities. All other crops are surveyed by interviewing farmers about recent planting/harvesting activity.

  • Sampling locations: Approximately 10,000 sampling locations are used, visited four times a year, to estimate agricultural data.

  • Crop calendar: Bangladesh has a well-defined crop calendar, and surveyors use this to accurately capture each crop's production and area planted.

  • Yield calculation: When ‘Yields’ are provided by the Agricultural Yearbook sources, they are calculated by precisely measuring a small subset of the sampling locations. When Yields have not been provided, they are calculated based on reported area and production.

  • Crop variants: In some cases, different crop variants were tracked in source documents, but only Total Crop figures are reported by FEWS NET. Source documents report Local, Pajam, Broadcast, HYV for Aman Rice; Broadcast, Local Transplanted, and HYV for Aus Rice; Local, HYV, and Hybrid for Boro Rice; Local, HYV, and Indian for Potato.

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