关键词: 多年生稻, 鱼, 鸭, 综合种养技术, 贵州

Abstract: Perennial rice technology consists of perennial rice varieties developed by utilizing the rhizome trait of the wild rice species, Oryza longistaminata, and the related crops management techniques. The technique enables us to plant rice only once but consecutive harvest for 5 to 10 years, during which there is no need for several production processes, such as purchasing seeds, seedling nursery, plowing fields and transplanting. The technique represents an efficient and sustainable rice production strategy, which is characterized by its environment-friendliness, cost saving and increasing effectiveness. In order to localized the technique in Guizhou, perennial rice varieties were introduced since 2017 and which were applied in rice-fish-duck system by 3 years of study, combined complementary advantages of high resistance of perennial rice and ecological regulation in paddy field, established a set of “perennial rice-fish-duck” light and efficient comprehensive cultivation technology without pesticide and less chemical fertilizer.

Key words: perennial rice, fish, duck, integrated breeding techniques, Guizhou