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夏玉米是京都主要粮食作物之一,产量高,面积大,在粮食生产中占有举足轻重的地位。夏玉米生长期短,光热资源利用率高,生长期间降雨量不少但分配不均衡。7月下旬至8上旬玉米生长前期降水量较多,而8月下旬至9月中旬玉米抽穗灌浆期降雨量少。为了探讨适合京郊夏玉米生态环境的节水高产栽培措施和提高玉米吨水产粮率的途径,采用组合设计的方法,对影响玉米水分利用率的三个主要因素进行研究,以求为夏玉米节水栽培提出一整套可调控的,定量化的组合方案,为在京郊推广玉米节水栽培技术提供科学依据。
Summer maize is one of the main food crops in Kyoto with high yield and large area, occupying a pivotal position in food production. Summer maize growth period is short, high utilization rate of light and heat resources, a lot of rainfall during growth but the distribution is not balanced. Precipitation in early July was higher in late July to early August, while there was less rainfall in late August to mid September during heading stage. In order to explore the water-saving and high-yielding cultivation measures suitable for the ecological environment of summer maize in the suburbs and the ways to increase the yield of corn per ton of aquatic products, three main factors that affect the water use efficiency of maize were studied by using the combination design method, Water-saving culture proposed a set of adjustable, quantitative combination of programs for the promotion of corn in Beijing water-saving cultivation techniques to provide a scientific basis.