Rainfed rice - IRRI books - International Rice Research Institute

RAINFED RICE A SOURCE BOOK OF BEST PRACTICES AND STRATEGIES IN EASTERN INDIA
Deepwater situation
Submergence for more than a week
High ufra nematode and stem borer incidence
Technological
Uplands
Constraints
Variety
Availability of high-quality
seeds
Poor plant population
Operational
Lowlands
Favourable areas
Unfavourable areas
Limited varietal options for
Very limited site-specific options
site-specific situations for appropriate high-yielding variety
Not available Not available
Poor crop emergence
Constraints Favourable areas
Variety –
Plant population –
Operational –
Fertiliser management in
lowlands (availability of
method for applying 2nd
and 3rd dose of nitrogen)
12
Poor crop emergence
Difficulty in use of agrochemicals Difficulty in use of agrochemicals
comparatively less for weed control for weed control
Available
Unfavourable areas
Non-availability of superior genotypes with drought
or submergence tolerance
Reduced due to early drought and early
submergence, particularly when direct-seeded
Difficulty in application of agrochemicals due to
drought and/or excess water
Not available for submergence-prone lowlands