Table 1.
Basic physical and chemical properties of four soil types (means ± SE, n = 3).
| Soil type | pH | Organic matter (g·kg−1) | Bulk density (g·cm−3) | Total nitrogen (g·kg−1) | Total phosphorus (g·kg−1) | Total potassium (g·kg−1) |
|---|---|---|---|---|---|---|
| YS | 4.79B±0.12 | 33.50A±0.64 | 1.32A±0.07 | 1.89A±0.11 | 0.08C±0.00 | 2.21B±0.09 |
| ACS | 5.12A±0.14 | 35.51A±0.74 | 1.29A±0.04 | 1.67A±0.09 | 0.83A±0.03 | 2.49B±0.06 |
| RS | 5.14A±0.16 | 16.64C±0.66 | 1.30A±0.06 | 1.14B±0.07 | 0.07C±0.00 | 3.15A±0.08 |
| ALS | 8.67A±0.23 | 20.99B±0.91 | 1.25B±0.08 | 1.65A±0.15 | 0.30B±0.01 | 3.56A±0.10 |
[i] Values followed by the same letter in the same column are not significantly different according to Tukey’s test (α= 0.05).
Figure 1.
Growth of P. chinense seedlings in four soil types.
Table 2.
Two-dimensional variance analysis of effects of soil types, organs and their interactions on biomass, nutrient element, C:N, C:P, and N:P ratios.
Figure 2.
Effects of four soil types on biomass accumulation and distribution in P. chinense seedlings. Different uppercase letters indicated significant differences between different soil types in different organs (P< 0.05). Different lowercase letters indicate significant differences between different organs in different soil types (P< 0.05).
Figure 3.
Effects of four soil types on total C, N, P, K, Ca and Mg contents in P. chinense seedlings.
Figure 4.
Effects of four soil types on C, N, P, K, Ca and Mg contents in different organs in P. chinense seedlings.
Figure 5.
Effects of four soil types on C:N, C:P and N:P ratios in P. chinense seedlings.
Figure 6.
Redundancy analysis (RDA) of the relationship between soil nutrient factors and root (A), stem (B), and leaf (C) growth and nutrient indexes of P. chinense. pH=Pondus Hydrogenii, OC=Organic carbon, TN=Total nitrogen, TP=Total phosphorus, TK=Total potassium, Bio=Biomass, CC=C content, NC=N content, PC=P content, KC=K content, CaC=Ca content, MgC=Mg content.