小麦玉米玉米间套作的产量效应与光热资源利用率的研究  

STUDIES ON LIGHT AND HEAT RESOURCE USE EFFICIENCY AND YIELD EFFECT OF WHEAT/CORN/CORN INTERCROPPING SYSTEM

作　　者：李增嘉[1] 李凤超[1] 赵秉强 

机构地区：[1]山东农业大学农学系

出　　处：《山东农业大学学报（自然科学版）》1998年第4期419-426,共8页Journal of Shandong Agricultural University：Natural Science Edition

摘　　要：通过连续３年两基点的定位试验研究，结果表明：在良好的水肥条件下，小麦玉米玉米间套作种植模式是实现高产高效、提高光热资源利用效率的有效途径。２．５ｍ和３．０ｍ种植带宽３年平均每公顷产粮１９１５１．７ｋｇ，比小麦玉米一年两熟平作增产３２．８１％；小麦玉米玉米间套作种植模式全生育期和全年的光能利用率为１．７％和１．６４％，比小麦玉米一年两熟平作提高了１６．０５％和１８．９８％，而且全年≥０℃积温的热量利用接纳系数和≥１０℃积温每℃可生产粮食分别提高了１４．３５％和２６．１３％。In this thesis the following conclusions are drawn throuhg continous three-year plot experiment and research: Wheat/Corn/Corn intercropping pattern (WCCIP) is an efficient way to obtain high yield as well as in crease light and heat resource use efficiency. On average, the total yield of WCCIP with growing width of 2.5m and 3.0m reached 19151.7kg/hm 2,which is 32.81% more than that of wheat-corn sequencial cropping pattern.The light use efficiency in the total growing period and the year are respectively 1.7% and 1.64%,which are 16.05% and 18.98% more than that of the wheat-corn seguencial cropping pattern.If the annual heat use admitting coefficient of accumulated temperature is at or above 0℃,or at or above 10℃ the grain yield of per centigrade thermal unit of accumulated temperature increases 14.35% and 26.13% respectively.

关 键 词：间套作 种植模式 产量效应 资源利用率 小麦 

分 类 号：S344.3[农业科学—作物栽培与耕作技术]