【摘要】 采用紧凑型玉米品种用“垄半空”及105cm大垄双行带作，并进行地膜覆盖新的综合栽培技术体系，进行玉米亩产吨粮试验，创建了高光效的群体光合系统，提高群体光合性能．为玉米大面积种植实现亩产吨粮田，提供了理论依据．更多还原

【Abstract】 With one and half ridges together forming a platform 105cm wide short-spacing strains of maize and a new cultural technology system of film -mulched are carried out experiments of producing 1000kg per mu in the spring maize,established a population with efficient system,and enhanced photosynthetic productivity of population. Thus the theoretical basis is given for the target of 1000kg per mu in maize on a large scale.更多还原