Application of ecological field theory to research of crops

Ecological field theory is a basic theory of physical ecology．It has been mainly used in forest research and has not been applied in crops breeding and cultivation．The traits and research projects in breeding，physiology and cultivation are analyzed in this paper．It is the first time to expatiate on this theory in crops breeding，physiology and cultivating．It can help the breeders and cultivatiors to overcome the dificulties in research theories ．