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用玻璃管观测法研究了水浇地和旱地春小麦的根系生长动态，结果表明，表层（０～２０ｃｍ）水浇地小麦根数多于旱地；中层（２０～５０ｃｍ）旱地小麦根数多于水浇地小麦；深层（５０ｃｍ以下），在小麦出穗以后，旱地小麦根数超过水浇地小麦根数。春小麦根数随出苗后天数呈三次多项式型动态曲线，旱地小麦根数峰值比水浇地小麦滞后约７天，但其峰值期持续时间较长。
The root growth dynamics of irrigated and upland spring wheat were studied by the glass tube observation. The results showed that the root number of wheat in irrigated and dry land was higher than that in dry land. The number of wheat in middle layer (20 ~ 50cm) Irrigated wheat; deep (50cm below), after the wheat spike, the number of dry land wheat exceeds the number of irrigated wheat roots. The number of spring wheat showed a cubic polynomial dynamic curve with the number of days after emergence. The peak number of wheat in dry land was lagged by about 7 days compared with that of irrigated land, but the duration of the peak period was longer.