双季稻区"晚稻品种连种"模式:内涵界定、产生逻辑与实现路径——以江西省为例OACSTPCD

The key to stable grain production in double cropping rice areas lies in early rice.However,early rice production has long exhibited typical characteristics of"low quality and low efficiency"and"increasing yield without increasing income",leading to a decrease in planting enthusiasm of farmers for planting,and the phenomenon of"double cropping rice to single cropping rice"or even"rice to cash crop"is prominent.Since the 13th Five Year Plan,Jiangxi has innovated and vigorously demonstrated the implementation of the"planting the same late rice varieties in early and late rice season"model,achieving significant results and promoting the high-quality and efficient development of early rice in double cropping rice areas.However,there were also difficulties and problems in the implementation,such as the lack of suitable varieties,the weak driving force from leading enterprises,the insufficient extension of the industrial chain,the lack of perfect supporting facilities and service support,and the degree of market acceptance to be improved.We therefore proposed the following countermesures and suggestions:accelerate the selection and breeding of suitable varieties for"late rice planted as early rice"and strengthen the demonstration and promotion of technology integration,deepen the construction of the agricultural industry chain and strengthen the driving role of leading enterprises,improve the construction of socialized service system for agricultural machinery,play the synergistic role of"competent government"and"effective market"to improve the market acceptance of the"planting the same late rice varieties in early and late rice season".