水分和氮素对玉米苗期生长、根系形态及分布的影响

张馨月,王寅,陈健,陈安吉,王莉颖,郭晓颖,牛雅郦,张星宇,陈利东,高强

Effects of Soil Water and Nitrogen on Plant Growth, Root Morphology and Spatial Distribution of Maize at the Seedling Stage

ZHANG XinYue,WANG Yin,CHEN Jian,CHEN AnJi,WANG LiYing,GUO XiaoYing,NIU YaLi,ZHANG XingYu,CHEN LiDong,GAO Qiang

表3 水分、氮素对玉米苗期根系形态的影响

Table 3 Effects of soil water and N rate on maize root morphology at seedling stage

土壤水分 Soil water condition 施氮量 N rate 根长 Root length (m) 根表面积 Root surface area (m2) 根体积 Root volume (cm3) W0 N0 122.1aB 0.75aB 38.5aC N1 83.8bD 0.60bD 42.4aD N2 75.3bC 0.57bD 39.1aD W1 N0 164.8aA 1.08aA 66.4cA N1 148.5aC 1.12aC 105.5aB N2 119.2bB 0.99aC 89.2bC W2 N0 192.4cA 1.21bA 62.9cAB N1 259.7aA 1.81aA 116.8bA N2 221.0bA 1.73aA 164.6aA W3 N0 174.3bA 1.09cA 57.5cB N1 221.4aB 1.59aB 93.5bC N2 208.9aA 1.43bB 110.3aB 方差分析 ANOVA 水分 W < 0.001 *** < 0.001 *** < 0.001 *** 氮素 N < 0.001 *** 0.002 ** < 0.001 *** 水分×氮素 W×N < 0.001 *** < 0.001 *** < 0.001 ***