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

Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun

Local Rice Varity(2-3 t/ha)

Mungbean/Grass Pea (0.5-1.0 t/ha

Traditional Cropping System (Farmers’ Practice)

Objectives

➢ feasibility of Rice-Rice-Rabi system

➢ can we fit 3 high yielding crops together?

➢ optimum sowing date for maximum

system productivity?

Proposed cropping pattern

Weed ManagementHand 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 PIMaize- 1/3 N + all fertilizer- Basal, 25-30, 45-50 DASSunflower- 1/3 N + all fertilizer-Basal, 20-25, 40-45 DAS

Water Management

Crop monitoring

Rice Maize Sunflower

Phenology & Biomass

Mid tilleringPanicle 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 SWGrain yield Grain yield Cob yield Seed yield

Results

❑ Duration of crops in fieldSunflower- 305 d Maize 321 dAus-aman-rabi is FEASIBLE where

- able to drain & thus grow HYV aman- fresh water for irrigation of rabi crops

A M J J A S O N D J F M A

Sunflower/Maize

System production 14.1 to 19.5 t/ha/yr (3-4 times than farmers’

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