通过根钻法研究了宽窄行种植模式下玉米根系干重和空间分布。结果表明：在不同生育时期宽窄行深松处理根系干重高于宽窄行未深松处理，且在吐丝期和乳熟期达到显著水平。

The root dry weight and spatial distribution of maize with planting in wide/narrow row alternation were reached in this study. The drilling method was used in order to get complete root of maize. The results showed that root dry weight of maize of planting in wide/narrow row with loosening were higher no deep loosening, moreover, there was significance(p≥0.05) at silking and milking stage.

国家科技支撑计划项目(2006BAD15B03)