对４个组合（品种）和４个海拔高度的阴阳坡玉米栽培研究表明：（１）海拔高度对玉米产量、穗行数、行粒数和千粒重的影响因组合（品种）不同而异；（２）阴坡和阳坡对玉米产量、穗行数、行粒数和千粒重的影响与海拔和玉米品种有关；（３）一般在山区适应性强、产量高的组合，千粒重有随海拔增加而增加的趋势，而且阴坡的产量、穗行数、行粒数和千粒重均高于阳坡。 The results showed that: (1) The effects of altitude on maize yield, ear number per line, grain number per line and 1000-grain weight were different according to the combination (variety); ( 2) The effect of shady slope and sunny slope on the yield of maize, the number of rows per ear, the number of rows per plant and the grain weight per thousand are related to the altitude and maize varieties; (3) Generally, the combination of strong adaptability and high yield in the mountainous area, Increasing trend, and the output of shady slope, the number of ear rows, grain number per line and 1000-grain weight were higher than the sunny slope.