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1 水分、氮素对春玉米苗期植株生长的影响

Table 1 Effects of soil water and N rate on maize plant growth at seedling stage

土壤水分 Soil water condition 施氮量 N rate 2016年 2017年 株高 Plant height (cm) 茎粗 Stem diameter (cm) SPAD 株高 Plant height (cm) 茎粗 Stem diameter (cm) SPAD W0 N0 60.4bB 19.7bB 28.8bA 73.4bC 25.3bB 32.0bC N1 79.7aB 23.7aB 44.3aA 80.5aC 28.6aC 42.9aB N2 82.5aB 23.9aB 45.7aA 83.1aC 30.9aC 44.9aB W1 N0 71.7bA 31.8bA 32.9bA 82.5bBC 32.6bA 35.2bB N1 88.7aB 39.2aA 43.0aA 96.4aB 37.2aB 44.1aB N2 91.3aB 40.4aA 45.4aA 101.5aB 38.9aB 47.0aB W2 N0 79.8bA 32.9bA 29.9bA 93.0bAB 34.4bA 36.7bAB N1 117.4aA 42.0aA 45.7aA 124.6aA 40.2aA 45.0aB N2 112.3aA 41.8aA 44.5aA 130.3aA 42.6aA 47.2aB W3 N0 80.3bA 32.1bA 30.1bA 96.7bA 33.8bA 38.7bA N1 111.2aA 40.4aA 46.6aA 120.8aA 39.1aAB 48.0aA N2 115.3aA 41.8aA 45.5aA 125.1aA 38.0aB 50.1aA 方差分析 ANOVA 水分 W <0.001 *** <0.001 *** 0.893 ns <0.001 *** <0.001 *** <0.001 *** 氮素 N 0.0016 ** <0.001 *** <0.001 *** <0.001 *** 0.032 * <0.001 *** 水分×氮素 W×N 0.126 ns 0.551 ns 0.694 ns 0.083 ns 0.332 ns 0.879 ns