1前言在甘肃粮食生产中,玉米占据中非常重要的地位,栽培面积仅次小麦。甘肃省有着较为复杂的气候条件,省内不同地域特点对栽培玉米品种提出了更高的要求。这些年来,在“科技创新”、“品种优育”理念的引导下,成功培育出了玉米新品种陇单9号,现将相关的高产制种技术流程做一详细叙述,为推广玉米新品种奠定一定的理论基础。2玉米新品种陇单9号高产制种技术2.1制种田地陇单9号制种,所用田地势要求平坦、排灌良好、肥力至中等 1 Introduction In the grain production in Gansu, maize occupies a very important position in China, with only wheat under cultivation. Gansu Province has a more complex climatic conditions, the province of different geographical features of cultivated corn varieties put forward higher requirements. In recent years, under the guidance of the concept of “scientific and technological innovation ” and “variety and excellent quality ”, the new maize variety Longdan 9 has been successfully cultivated. Now, the related high-yielding seed production technology flow is described in detail, Maize new varieties laid a theoretical foundation. 2 new varieties of maize Longdan 9 high-yielding seed production technology 2.1 farming field Longdan 9 seed production, the use of field potential flat, good irrigation and drainage, fertility to medium