If you think fish in a pond you think insects being gobbled up from the water surface and you think lots of pooh-pooh at the bottom of the pond. Well in the case of rice paddy this is good news. The fish swim and bump into the rice stems which causes insect to drop in the water… insects that would otherwise eat the rice. The fish waste product fertilises the rice. the research showed that when compared to commercial rice cultivation, the intercrop rice needed a whopping 70% less pesticides and 30% less fertiliser to produce the same yield. In case of organic rice, yield in intercrop paddy where higher than the monoculture equivalent. As for the fish, the extra shade provided by all the rice stalks made for a cooler environment which was beneficial to the growth of the fish during the hot season. For more info on the scientific report, read here.
What an Idea I say!!