Table 1 in Nitrogen fertilization: Effect on Cd-phytoextraction by the halophytic plant quail bush [Atriplex lentiformis (Torr.) S. Wats] *

Table 1 Growth parameters of A.lentiformis when treated with different rates of nitrogen fertilizer. N ratesRoots (g/pot)Shoots (g/pot)Leaf number/ plantLeaf area/plant (cm2)Plant length (cm)C20 ± 1.52 d80 ± 3.2 c30 ± 1.82 d80 ± 3.52 d100 ± 5.25 c10025 ± 1.54 c90 ± 3.0 b35 ± 1.94 c85 ± 4.33 d115 ± 5.22 b20028 ± 1.45 b95 ± 4.0 b38 ± 2.00 b92 ± 5.00 c120 ± 5.12 b30033 ± 1.43 a100 ± 4.5 a40 ± 2.40 a100 ± 5.46 b130 ± 5.55 a40035 ± 1.48 a102 ± 3.1 a42 ± 2.40 a120 ± 5.44 a133 ± 5.62 a Means (±standard deviation, n = 4) denoted by different letters are significantly different at P <0.05.表1 不同氮肥施用量处理下A.lentiformis的生长参数 | 施氮量 | 根系干重(g/盆) | 地上部干重(g/盆) | 单株叶片数 | 单株叶面积(cm²) | 株高(cm) | | :---: | :---: | :---: | :---: | :---: | :---: | | 对照（C） | 20 ± 1.52 d | 80 ± 3.2 c | 30 ± 1.82 d | 80 ± 3.52 d | 100 ± 5.25 c | | 100 | 25 ± 1.54 c | 90 ± 3.0 b | 35 ± 1.94 c | 85 ± 4.33 d | 115 ± 5.22 b | | 200 | 28 ± 1.45 b | 95 ± 4.0 b | 38 ± 2.00 b | 92 ± 5.00 c | 120 ± 5.12 b | | 300 | 33 ± 1.43 a | 100 ± 4.5 a | 40 ± 2.40 a | 100 ± 5.46 b | 130 ± 5.55 a | | 400 | 35 ± 1.48 a | 102 ± 3.1 a | 42 ± 2.40 a | 120 ± 5.44 a | 133 ± 5.62 a | 注：各组均值以（±标准差，n=4）表示，标注不同小写字母表明组间差异达P<0.05显著水平。