“Caltrop-Wild Rice Stem-Fish” Production Model in Paddy Field and Its Benefit Analysis

Taking the “caltrop-wild rice stem-fish” production model in paddy field practised by Huang Weican, a farmer of Henghe town, Cixi city, Zhejiang Province, as an example, this paper systematically introduced the design and layout, and the key management techniques of the model. Emphasis was placed on the analysis and assessment of its material and capital input and output status, and its ecological, economic and social benefits.