Mixed cropping, also known as inter-cropping, polyculture, or co-cultivation, is a type of plant production system that involves planting two more species (or cultivars) simultaneously in the same field variable order (row rowless) [...]

Abstract Ecological residence is the direction of residence development in 21 century; it is the final choice of people when their living standard becomes high enough. Ecological Residence pursues high harmony and unification among nature, buildings and human, and improves the ecological environment and living quality of human. This article analyzes the problems in developing ecological residen...