麦棉两熟条件下，采用３－１式播种方式，对大穗、大粒型小麦品种９３中６（３７系）进行了３种不同行距栽培试验。结果表明，缩小行距有利于小麦、棉花产量的提高，３种行距间产量差异显著；随着行距的缩小，亩产量和有效穗数增加，千粒重和穗粒数减少，差异不显著。 Under the condition of wheat-cotton double-ripening, the three-row cultivation experiment was conducted on 6 (37 lines) of 93 large-spike, large grain wheat cultivars using 3-1 seeding method. The results showed that the narrowing of row spacing was beneficial to the increase of wheat and cotton yield, and the difference of yield among three row spacing was significant. With the shrinking of row spacing, the yield and effective panicle per acre increased, but the grain weight per panicle and grain number per spike decreased, but the difference was insignificant.