1 is the area for rice is creating plankton, algae, a fish and frogs.
2 is channel around paddy field for fish feed shrimp feed frog shells, which the dung these became part of the food chain. And fertilizer to rice.
3 is the area on the ridge extends wide. And can be used in planting vegetables such as vegetable of medicinal plants for consumption in the household. And create additional income to the farmer. The boundary on the ridge some breaks for raising duck duck go living in paddy field. The farmers.
Can consume the eggs, and for resale, too.