The ecological cultivation of rice fields with multiple cropping system is the improvement and development of the classical farming mode of China "rice field fish cultivation". The new technologies of rice field ecological cultivation introduced in this book include rice oil fish ecological cultivation mode, rice oil turtle ecological cultivation mode, rice loach ecological cultivation mode, rice oil crab ecological cultivation mode, rice oil frog ecological cultivation mode, rice oil shrimp ecological cultivation mode , rice eel ecological cultivation model, rice duck ecological cultivation model. On the basis of the previous large-scale business model, two patent technologies of "ladder cultivation" and "wedge cultivation" have been ingeniously added, which have successfully solved the bottleneck problems of escaping, overwintering in summer, ensuring feed, no tillage cultivation, directional fertilization and water-saving irrigation in the cultivation process, and initially formed a technical system of "narrow ridge, multiple maturity, close planting and sparse cultivation", and achieved good economic results Economic, ecological and social benefits.
