三种植物对土壤磷吸收和富集能力的比较

吴浩, 卢志军, 黄汉东, 江明喜

Comparison of phosphorus uptake and accumulation capacity among three plant species

WU Hao,LU Zhi-Jun,HUANG Han-Dong,JIANG Ming-Xi

表3 五种磷浓度处理下3种植物各生长时期磷(P)转移系数(平均值±标准误差, n = 3)

Table 3 Translation coefficients for three plant species over different growth periods at five phosphorus (P) concentrations (mean ± SE, n = 3)

P处理 P treatment (mg·kg-1) 向日葵 Helianthus annuus 苏丹草 Sorghum sudanense 南瓜 Cucurbita moschata 4周 4 weeks 7周 7 weeks 10周 10 weeks 4周 4 weeks 7周 7 weeks 10周 10 weeks 4周 4 weeks 7周 7 weeks 10周 10 weeks 0 1.81 ± 0.15Aa 1.61 ± 0.16Aa 1.85 ± 0.20Ac 3.03 ± 0.41Aa 2.14 ± 0.17ABa 1.85 ± 0.12Bc 0.84 ± 0.15Aa 0.85 ± 0.08Aa 0.86 ± 0.04Aa 100 2.18 ± 0.21Aa 1.75 ± 0.12Aa 2.55 ± 0.24Abc 2.90 ± 0.15Aa 2.07 ± 0.19Ba 2.08 ± 0.22Bbc 1.67 ± 0.24Aa 1.15 ± 0.11ABa 0.87 ± 0.04Ba 300 2.30 ± 0.27Aa 2.28 ± 0.15Aa 2.56 ± 0.19Abc 3.39 ± 0.34Aa 2.16 ± 0.20Ba 2.10 ± 0.11Bbc 1.61 ± 0.52Aa 1.01 ± 0.14Aa 1.00 ± 0.06Aa 500 1.65 ± 0.25Aa 2.01 ± 0.04Aa 3.05 ± 0.33Ab 3.44 ± 0.35Aa 2.15 ± 0.22Ba 2.46 ± 0.12Bab 1.69 ± 0.63Aa 0.88 ± 0.09Aa 0.95 ± 0.09Aa 700 1.86 ± 0.14Ba 2.43 ± 0.41Ba 4.09 ± 0.30Aa 3.54 ± 0.15Aa 2.35 ± 0.14Ca 2.92 ± 0.15Ba 1.82 ± 0.36Aa 0.71 ± 0.05Ba 0.95 ± 0.04Ba