Rainfed rice - IRRI books - International Rice Research Institute

RAINFED RICE A SOURCEBOOK OF BEST PRACTICES AND STRATEGIES IN EASTERN INDIA
mustard oilcake and rice bran. Harvest fish from pond refuge in February-
March.
Do not use pesticides in rice-fish culture ponds. Adopt integrated pest
management practices.
Economics of intercropping with
rice in very deep water
Crop sequence Gross Benefit:cost Rice
income ratio equivalent
(Rs/ha) (t/ha)
Deepwater rice 7902 1.80 2.63
Deepwater rice 10471 1.91 3.49
+ maize
Deepwater rice 8206 1.58 2.74
+ jute
80
Very deep water (floating rice)
areas
Monocropping of rice (200-210
days) is the only alternative. The
crop is sown in April-May and is
harvested in December-January.
Mixed/intercropping of maize, jute,
and mungbean is feasible as a pre-
flood crop (April-June). Extra-early
maturing maize is the best
intercrop.
Fish, common carp or major Indian carp, can be easily raised in a pond
refuge simultaneously with rice. Nitrogen is applied at 20 kg N/ha at
sowing.
Flash-flooded undulated area
This land is adjacent to river banks, undulated with various soil types
carrying silt and sand deposits due to frequently changing water currents.
Sugarcane is a major crop in some areas. Rice varieties having submergence
tolerance are also grown. The cropping systems of the area can be
diversified with banana and paragrass. Banana (plantain type) can be
grown on the upper portion of the upper lands with 50 kg compost per pit.
Paragrass (fodder) root slits (each with three to four buds) can be planted
only on sloping lands.