STUDIES ON PADDY-CUM-FISH CULTURE UNDER DIFFERENT LAND SITUATIONS

Abstract

Paddy fields can be broadly classified on the basis of land situations
viz. Upland - Shallow water (10-30 em), Medium land-medium deepwater
(30-100 em) and Low land-deepwater (above 100 em). Three major systems
of paddy-cum-fish culture, viz. (A) high yielding paddy varieties (H.Y.V)
and air-breathing fish under Upland, (B) H.Y.V. /local paddy and Tilapia/
common carp under Medium land and (C) deepwater paddy and major
Indian carps under Low land situations have been successfully
investigated in the farmers' fields and at the Research Stations (1982-92).
Effects of low-cost artificial feeding on growth, yield and management
practices of different types of fish showed a considerable increase of rice
and fish yields and a decrease in insect-pest incidence. Under Upland
situation, short. duration H.Y.V. in combination with fast-growing airbreathing
fish were studied thrice a year (summer, winter & autumn
seasons). Combined rice and fish culture produced highest yields in all
the seasons than in the control.