Castor is an economic crop with wide adaptability in China, and its yield has a very important relationship with its morphological structure. Based on the study of the relationship between the morphological structure and yield of main cash crops such as rice, wheat and maize, this paper summarized the research progress of the relationship between castor and yield from the aspects of variety characteristics, habitat conditions, dry matter distribution, cultivation measures, and put forward the research direction, content and research of the relationship ...