Abstract:

To thoroughly implement the national food security strategy and operationalize the general requirements of “storing grain in the land and storing grain through technology”, this study focuses on Hanzhong City to address bottlenecks in raising rice yields and insufficient technological integration in southern Shaanxi. Anchored in regional ecological characteristics and the rice-rapeseed rotation system, we systematically explored technical pathways for large-scale rice yield improvement, emphasizing the coordinated enhancement of both productivity and economic returns. By selecting superior varieties and integrating cultivation techniques such as robust seedling cultivation combined with dense mechanical transplanting, we established a comprehensive yield-increasing and efficiency-enhancing pathway encompassing “variety optimization+technological integration+model innovation+contract farming+demonstration-driven promotion”. This pathway was promoted through a multi-level demonstration network. In 2025, despite multiple adverse weather events, the average rice yield in Hanzhong reached 479.57 kg/667 m², an increase of 8.47 kg/667 m² over the previous year (year-on-year growth of 1.80%). Notably, the mechanized transplanting mode using the leading variety Huazheyou 210 increased yield by 37.30 kg/667 m² compared with the manual transplanting mode, with a corresponding profit gain of 150.10 yuan/667 m². The developed technical model demonstrates strong resilience and high regional adaptability, providing a replicable and scalable systematic solution for sustained rice yield improvement and whole-industry-chain value enhancement in southern Shaanxi.

Key words: rice, large-scale yield increase, technical pathway, Hanzhong City

摘要：

为深入贯彻国家粮食安全战略，落实“藏粮于地、藏粮于技”总体要求，破解陕南地区水稻单产提升瓶颈及技术集成不足等问题，本研究以汉中市为对象，立足区域生态特征与“稻-油”轮作模式，系统探索水稻大面积单产提升的技术路径，以期单产水平和经济效益的协同增长。本研究通过筛选优良品种，集成壮秧增密机插等栽培技术，构建了“品种优化+技术集成+模式创新+订单生产+示范驱动”的综合提产增效路径，并依托多层次示范体系推动技术落地应用。2025年，在多重不利气象条件下，汉中市水稻平均单产达479.57 kg/667 m²，较上年增产8.47 kg/667 m²，同比增长1.80%；其中，主推品种华浙优210机插模式单产较手插模式提升37.30 kg/667 m²，效益增加150.10元/667 m²。所形成的技术模式抗逆性强、区域适配性高，为陕南地区水稻单产持续提升及全产业链增值提供了可复制、可推广的系统解决方案。

关键词: 水稻, 大面积单产提升, 技术路径, 汉中市