There are various potential energy sources within agroecosystems, which can be internally managed and used as energy inputs for biomass production in the agroecosystem. The energetics of agroecosystems consists of primary solar energy and human-induced energy so called cultural energy inputs. Within agroecosystems the cultural energy can be drived from sources of a particular agroecosystem, such as crop residues, manure, and wild plants. Numbers of studies have been conducted to design cultural energy flows within the lowland and upland agroecosystems in South Kalimantan. The end goal of the studies is to promote a zero waste agriculture especially in sub optimum land. The study on the tidal lowland at Barito Kuala District evaluated potential of rice straw, wild plants. and fishpond muds as internal energy inputs for the agroecosystem. The study showed that such thre5 internal inputs could be managed to promote the zero waste agroaquaculture on tidal lowlands. Similar potential was also, showed by the preliminary study on the upland at Tanah Laut District, by which internal inputs of wild plants, crop residues, and manure were applied as organic material sources of modified-biopores