A microorganism hydrolyzing carboxymethyl cellulose was isolated from a paddy field and identified as Bacillus sp. Production of cellulase by this bacterium was found to be optimal at pH 6.5, 37°C and 150 rpm of shaking. #is cellulase was purified to homogeneity by the combination of ammonium sulphate precipitation, DEAE cellulose, and sephadex G-75 gel filtration chromatography. #e cellulase w...

Paddy-Fish integrated system has been applied by Indonesian farmers. They practiced diversification farming in correlation to get more benefit and minimized risk. The objective of this research was analyse technical economical feasibility paddy-fish at lowland rice field. This used the experimental field method. Fish pond created surrounded with 3 m width 0,5 depth where fish grown for 4 months...