Sustainable agriculture must be both economic and ecological sustainability to be a truly sustainable farming.The farmer won’t be able to do farming operation without neither economic sustainability nor ecological sustainability. This type of farming doesn’t have to be an organic farming, but it seems like most of the farms are trying to use organic components rather than synthetic chemicals, especially for fertilizer and insecticide. Sustainable agriculture focuses on how to raise more crops base on the ecological principles and trying to understand the ecology of the farming system.