从规模、结构和质量三个维度剖析了农业服务化对粮食产业高质量发展的驱动机制，构建广义嵌套空间模型，利用中国31个省份2003—2018年的面板数据研究发现：农业服务业规模化和结构高级化对粮食产业高质量发展有促进作用，而发展低质化对其有抑制作用；农业服务业发展低质化主要是由于农业服务定位和粮食产业高质量发展目标之间不匹配所导致的，进一步提升农业服务业发展质量是现阶段驱动粮食产业高质量发展的重要手段；粮食产业由于技术扩散存在正向空间溢出，但受限于区域贸易成本，本地农业服务化“红利”难以辐射周围地区，反而会通过要素竞争对周围地区形成“虹吸效应”。进一步分析表明，产业政策扶持和技术创新能力提升有助于强化农业服务业对粮食产业高质量发展的促进作用；同时，降低区域贸易成本、提高技术吸收与转化能力则会强化产业互动的正向空间溢出，带动粮食产业区域协调与高质量发展。

The driving mechanism of agricultural servitization on the high-quality development of grain industry has been studied from the perspectives of scale, structure and quality. A generalized nested space model has been constructed by using the panel data collected from 31 provinces in China from 2003 to 2018. The research shows that the scale expansion and structure upgrading of agricultural service industry have a positive effect on high-quality development of grain industry while the low development quality has a restraining effect on it. The low development quality of agricultural service industry mainly results from the mismatch between the agricultural service position and the high-quality development goal of grain industry. Further improving the development quality of agricultural service industry is the major means of driving the high-quality development of grain industry at this stage. The grain industry has positive spatial spillovers because of technology diffusion. Due to the limitation of the regional trade cost, it is difficult to radiate the local agricultural servitization “dividend” to the surrounding areas; instead, it has a “siphonic effect” on the surrounding areas through factor competition. Further analysis shows that the industrial policy support and the improvement of technological innovation ability can help to strengthen the role of agricultural service industry in promoting the high-quality development of grain industry. Moreover, reducing regional trade cost and improving technology absorption and transformation capacity will strengthen the positive spatial spillover of industrial interaction and stimulate the regional coordination and high-quality development of grain industry.

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