Characteristics of Nitrogen, Phosphorus and Potassium Contents in the Rhizome, Fibrous Root and Rhizospheric Soil of Paris polyphylla var. yunnanensis from Different Regions
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摘要:
目的 探索不同产地滇重楼植物体不同部位和根际土壤中氮(N)磷(P)钾(K)元素含量分布规律,区分不同产地滇重楼植物体与根际土壤N、P、K营养元素含量差异性,为滇重楼栽培种植提供理论依据。 方法 采用常规方法测定滇重楼根茎、须根以及根际土壤中的N、P、K含量。 结果 不同产地滇重楼须根中N、P、K含量分别在0.554 ~ 2.057 mg g−1、0.616 ~ 5.498 mg g−1、1.250 ~ 14.080 mg g−1之间,根茎中N、P、K含量分别在0.137 ~ 1.610 mg g−1、0.561 ~ 2.261 mg g−1、0.768 ~ 6.496 mg g−1之间,根际土壤中N、P、K含量分别在0.071 ~ 0.711 mg g−1、3.308 ~ 23.557 mg g−1、1.991 ~ 20.795 mg g−1之间;须根对N、P、K的富集系数分别在1.183 ~ 22.471、0.049 ~ 0.884、0.207 ~ 2.325之间,根茎对N、P、K的富集系数分别在0.314 ~ 13.021、0.041 ~ 0.570、0.056 ~ 1.493之间;野生和栽培滇重楼植物体及根际土壤中N、P、K含量特征未有明显区分。 结论 不同产地滇重楼植物体中N、P、K含量大小均为K > P > N,根际土壤中N相对匮乏,P比较丰富;野生品根茎中N、K含量整体上高于栽培品,P含量则相反;栽培品须根中N、P、K含量整体上高于野生品;栽培品与野生品根际土壤中N、P、K含量大致相当;各产地滇重楼须根中的N、P、K含量都显著高于根茎。 Abstract:Objective To explore the distribution law of nitrogen (N), phosphorus (P) and potassium (K) content in different parts of Paris polyphylla var. yunnanensis and rhizosphere soil in different producing areas, and to distinguish the differences of N, P and K contents among Paris polyphylla var. yunnanensis plant and rhizosphere soil in different producing areas, this study provided a theoretical basis for the cultivation of Paris polyphylla var. yunnanensis. Method The N, P and K contents in the rhizomes, fibrous roots and rhizospheric soil of P. polyphylla var. yunnanensis were determined via ultra high performance liquid chromatograph. Result The contents of N, P and K in the fibrous roots ranged from 0.554-2.057 mg g−1, 0.616-5.498 mg g−1, 1.250-14.080 mg g−1 respectively, in rhizome ranged from 0.137-1.610 mg g−1, 0.561-2.261 mg g−1, 0.768-6.496 mg g−1 respectively, in rhizospheric soil ranged from 0.071-0.711 mg g−1, 3.308-23.557 mg g−1, 1.991-20.795 mg g−1 respectively. The bioconcentration factors of fibrous root to N, P and K ranged from 1.183-22.471, 0.049-0.884 and 0.207-2.325 respectively, rhizome to N, P and K ranged from 0.314-13.021, 0.041-0.570 and 0.056-1.493 respectively. There was no obvious difference between wild and cultivated products in the contents of N, P and K. Conclusion The content order of N, P and K in the plant of P. polyphylla var. yunnanensis from different regions was K > P > N, the rhizospheric soil was relatively lack of N and rich in P. The contents of N and K in the rhizome of wild plant were generally higher than those of cultivated plant while the P content in the rhizome of wild plant was lower than that of cultivated plant. The contents of N, P and K in the fibrous root of cultivated plant were generally higher than those of wild plant. The contents of N, P and K in the rhizospheric soil of wild and cultivated plants were roughly the same. The content of N, P and K in the fibrous root of P. polyphylla var. yunnanensis from different regions were higher than those in rhizome. -
表 1 样品来源
Table 1. Sample sources
生长方式
Growth
pattern根茎编号
Rhizome
number须根编号
Fibrous root
number土壤编号
Soil number采集地点
Sampling place纬度
East latitude经度
North
longitude野生品 Yg-1 Yx-1 Yt-1 贵州省安顺市西秀区龙宫镇 26°05′42.15″ 105°52′43.28″ Yg-2 Yx-2 Yt-2 贵州省安顺市西秀区安大广城 26°15′50.06″ 106°00′35.28″ Yg-3 Yx-3 Yt-3 贵州省清镇市卫城镇坪寨村 26°44′43.78″ 106°22′57.08″ Yg-4 Yx-4 Yt-4 贵州省兴仁县战马田村 25°32′46.94″ 105°27′35.53″ Yg-5 Yx-5 Yt-5 贵州省兴义市七舍镇马格闹村 25°00′40.74″ 104°49′10.82″ Yg-6 Yx-6 Yt-6 四川省会东县老君滩乡平街村 26°23′32.68″ 102°57′55.67″ Yg-7 Yx-7 Yt-7 云南省易门县二街15组 24°58′38.89″ 102°12′52.17″ Yg-8 Yx-8 Yt-8 云南省楚雄市吕合镇钱粮办事处杨巡部小组 25°07′55.62″ 101°22′30.67″ Yg-9 Yx-9 Yt-9 云南省保山市隆阳区蒲缥镇黄泥村 25°02′09.58″ 99°04′108.31″ Yg-10 Yx-10 Yt-10 云南省昌宁县大田坝乡湾岗村 24°94′20.79″ 99°56′52.25″ Yg-11 Yx-11 Yt-11 云南省玉龙纳西族自治县白沙乡玉湖村 27°01′94.84″ 100°22′01.55″ 栽培品 Zg-1 Zx-1 Zt-1 贵州省织金县以那 26°48′33.57″ 105°38′57.71″ Zg-2 Zx-2 Zt-2 贵州省紫云猫营 25°59′01.08″ 106°04′53.96″ Zg-3 Zx-3 Zt-3 贵州省龙里县大冲村 26°27′47.29″ 106°59′33.64″ Zg-4 Zx-4 Zt-4 四川省会东县老君滩乡平街村 26°23′43.21″ 102°58′06.64″ Zg-5 Zx-5 Zt-5 云南省嵩明县杨林镇老余屯村 25°09′25.07″ 103°02′31.33″ Zg-6 Zx-6 Zt-6 云南省易门县二街15组 24°58′38.89″ 102°12′52.17″ Zg-7 Zx-7 Zt-7 云南省楚雄市吕合镇钱粮办事处杨巡部小组 25°07′55.62″ 101°22′30.67″ Zg-8 Zx-8 Zt-8 云南省保山市隆阳区蒲缥镇黄泥村委会熊家 25°02′09.58″ 99°04′08.31″ Zg-9 Zx-9 Zt-9 云南省保山市隆阳区摆菜村 25°11′50.33″ 99°19′15.87″ Zg-10 Zx-10 Zt-10 云南省龙陵县龙新乡龙新村 24°32′12.82″ 98°46′54.28″ Zg-11 Zx-11 Zt-11 云南省芒市江东乡大水沟村 24°29′24.79″ 98°20′11.93″ Zg-12 Zx-12 Zt-12 云南省昌宁县大田坝乡湾岗村 24°94′20.79″ 99°56′52.25″ Zg-13 Zx-13 Zt-13 云南省永平县阿海寨村委会海子汪张家组 25°21′08.71″ 99°23′06.52″ Zg-14 Zx-14 Zt-14 云南省云龙县漕涧镇铁厂村 25°34′57.29″ 99°07′29.63″ Zg-15 Zx-15 Zt-15 云南省玉龙县白沙乡玉湖村 27°01′94.84″ 100°22′01.55″ Zg-16 Zx-16 Zt-16 云南省剑川县羊岑乡 26°48′42.07″ 99°80′75.88″ 表 2 中国土壤养分含量的分级
Table 2. Classification of soil nutrient contents in China
级别
Level氮(g kg−1)
Nitrogen磷(g kg−1)
Phosphorus钾(g kg−1)
Potassium养分评价
Nutrient evaluation1 > 2 > 1 > 25 丰富 2 > 1.5 ~ 2 > 0.8 ~ 1 > 20 ~ 25 较丰 3 > 1 ~ 1.5 > 0.6 ~ 0.8 > 15 ~ 20 中等 4 > 0.75 ~ 1 > 0.4 ~ 0.6 > 10 ~ 15 较缺 5 0.5 ~ 0.75 0.2 ~ 0.4 5 ~ 10 缺乏 6 < 0.5 < 0.2 < 0.5 极缺 表 3 不同产地滇重楼根茎氮磷钾含量
Table 3. Contents of nitrogen, phosphorus and potassium in rhizome of P. polyphylla var. yunnanensis from different regions
来源
Origin产地
Region氮(mg g−1)
Nitrogen磷 (mg g−1)
Phosphorus钾 (mg g−1)
Potassium野生 Yg-1 0.277 ± 0.075 g 0.637 ± 0.012 e 3.533 ± 0.041 e Yg-2 0.426 ± 0.036 e 1.160 ± 0.035 c 1.660 ± 0.083 h Yg-3 0.680 ± 0.014 b 0.561 ± 0.012 e 5.089 ± 0.041 d Yg-4 0.630 ± 0.0251 c 1.447 ± 0.033 b 6.496 ± 0.043 a Yg-5 0.563 ± 0.036 d 1.995 ± 0.054 a 6.238 ± 0.039 b Yg-6 0.560 ± 0.036 d 1.093 ± 0.025 cd 1.286 ± 0.041 i Yg-7 1.610 ± 0.012 a 1.382 ± 0.036 b 2.831 ± 0.123 g Yg-8 0.184 ± 0.064 h 1.330 ± 0.128 b 3.447 ± 0.079 e Yg-9 0.184 ±0.074 h 0.992 ± 0.063 d 0.768 ± 0.041 j Yg-10 0.317 ± 0.014 f 1.379 ± 0.043 b 5.950 ± 0.047 c Yg-11 0.137 ± 0.004 i 1.117 ± 0.012 cd 3.041 ± 0.041 f 平均值 0.506 1.190 3.667 CV/% 77.89 31.68 52.71 栽培 Zg-1 0.464 ± 0.053 D 1.405 ± 0.032 DE 3.446 ± 0.107 D Zg-2 0.423 ± 0.064 E 1.514 ± 0.020 CD 2.523 ± 0.039 HI Zg-3 0.603 ± 0.024 B 2.308 ± 0.053 A 5.028 ± 0.108 B Zg-4 0.504 ± 0.071 C 1.422 ± 0.024 D 3.158 ± 0.071 E Zg-5 0.426 ± 0.004 E 1.067 ± 0.032 GH 2.610 ± 0.042 H Zg-6 0.297 ± 0.046 H 1.886 ± 0.032 B 5.692 ± 0.036 A Zg-7 0.698 ± 0.004 A 2.261 ± 0.060 A 4.950 ± 0.082 B Zg-8 0.603 ± 0.064 B 2.012 ± 0.074 B 2.035 ± 0.071 K Zg-9 0.470 ± 0.004 D 1.607 ± 0.031 C 2.955 ± 0.041 F Zg-10 0.277 ± 0.074 I 1.125 ± 0.064 G 2.436 ± 0.041 I Zg-11 0.187 ± 0.016 J 1.127 ± 0.052 G 2.209 ± 0.001 J Zg-12 0.327 ± 0.051 G 1.160 ± 0.109 FG 3.850 ± 0.071 C Zg-13 0.467 ± 0.071 D 1.278 ± 0.085 EF 2.811 ± 0.067 FG Zg-14 0.600 ± 0.004 B 1.454 ± 0.042 D 2.666 ± 0.039 GH Zg-15 0.387 ± 0.007 F 0.974 ± 0.023 D 1.804 ± 0.082 M Zg-16 0.429 ± 0.008 E 1.100 ± 0.024 GH 2.221 ± 0.042 L 平均值 0.448 1.481 3.150 CV/% 30.43 28.82 36.84 注:野生品同列不同小写字母表示在P < 0.05水平差异显著,栽培品同列不同大写字母表示在P < 0.05水平差异显著,表4、表5同。 表 4 不同产地滇重楼须根氮磷钾含量
Table 4. Contents of nitrogen, phosphorus and potassium in fibrous root of P. polyphylla var. yunnanensis from different regions
来源
Origin产地
Region氮(mg g−1)
Nitrogen磷(mg g−1)
Phosphorus钾(mg g−1)
Potassium野生
WildYx-1 0.840 ± 0.056 gh 1.492 ± 0.438 cd 6.605 ± 0.198 d Yx-2 1.823 ± 0.062 a 1.275 ± 0.156 de 1.250 ± 0.083 f Yx-3 1.404 ± 0.071 b 1.277 ± 0.063 de 8.296 ± 0.294 b Yx-4 1.298 ± 0.009 c 1.170 ± 0.086 def 6.993 ± 0.141 cd Yx-5 1.397 ± 0.018 b 1.022 ± 0.024 ef 9.214 ± 0.163 a Yx-6 0.829 ± 0.077 h 0.616 ± 0.023 g 6.848 ± 0.153 d Yx-7 1.028 ± 0.031 e 1.647 ± 0.024 c 7.939 ± 0.082 b Yx-8 0.933 ± 0.041 f 1.780 ± 0.024 bc 9.368 ± 0.163 a Yx-9 0.856 ± 0.091 g 0.815 ± 0.024 fg 2.853 ± 0.141 e Yx-10 1.185 ± 0.011 d 2.185 ± 0.028 a 9.481 ± 0.175 a Yx-11 0.554 ± 0.079 i 2.118 ± 0.043 ab 7.356 ± 0.141 c 平均值 1.104 1.400 6.928 CV/% 30.89 34.26 36.34 栽培 Zx-1 1.395 ± 0.061 F 1.555 ± 0.041 I 5.147 ± 0.081 L Zx-2 1.766 ± 0.038 C 2.218 ± 0.040 EF 6.025 ± 0.084 K Zx-3 1.769 ± 0.016 C 3.023 ± 0.040 B 9.979 ± 0.156 HI Zx-4 1.400 ± 0.061 F 1.493 ± 0.047 I 10.347 ± 0.221 G Zx-5 1.594 ± 0.012 DE 1.358 ± 0.044 J 10.121 ± 0.028 GH Zx-6 1.410 ± 0.019 F 2.699 ± 0.024 C 12.454 ± 0.082 C Zx-7 2.057 ± 0.015 A 5.489 ± 0.048 A 8.983 ± 0.082 J Zx-8 1.587 ± 0.063 E 2.016 ± 0.040 G 8.735 ± 0.154 K Zx-9 1.487 ± 0.025 F 2.033 ± 0.064 G 11.672 ± 0.022 D Zx-10 1.201 ± 0.068 G 1.847 ± 0.024 H 8.905 ± 0.136 J Zx-11 1.213 ± 0.017 G 2.083 ± 0.061 G 10.745 ± 0.079 F Zx-12 1.571 ± 0.075 E 2.080 ± 0.049 G 13.491 ± 0.090 B Zx-13 1.873 ± 0.045 B 2.430 ± 0.042 D 14.080 ± 0.082 A Zx-14 1.611 ± 0.051 D 2.311 ± 0.024 E 11.364 ± 0.001 E Zx-15 1.406 ± 0.017 F 2.523 ± 0.043 D 10.405 ± 0.214 G Zx-16 1.482 ± 0.029 F 2.110 ± 0.041 FG 9.796 ± 0.081 I 平均值 1.551 2.329 10.141 CV/% 14.84 40.72 23.23 表 5 不同产地滇重楼根际土壤氮磷钾含量
Table 5. Contents of nitrogen, phosphorus and potassium in rhizospheric soil of P. polyphylla var. yunnanensis from different regions
来源
Origin产地
Region氮 (mg g−1)
Nitrogen磷 (mg g−1)
Phosphorus钾 (mg g−1)
Potassium野生
WildYt-1 0.711±0.023 a 6.706±0.080 g 7.267±0.018 g Yt-2 0.218 ± 0.052 g 15.305 ± 0.292 c 1.991 ± 0.040 i Yt-3 0.250 ± 0.071 f 8.655 ± 0.183 e 11.629 ± 0.176 e Yt-4 0.296 ± 0.061 e 16.685 ± 0.350 b 4.352 ± 0.034 h Yt-5 0.337 ± 0.041 d 15.719 ± 0.077 c 14.939 ± 0.222 c Yt-6 0.087 ± 0.023 j 11.480 ± 0.118 d 7.533 ± 0.096 g Yt-7 0.124 ± 0.056 i 7.632 ± 0.273 f 20.795 ± 0.230 a Yt-8 0.154 ± 0.094 h 7.844 ± 0.191 f 10.855 ± 0.113 f Yt-9 0.474 ± 0.031 b 16.642 ± 0.131 b 13.774 ± 0.374 d Yt-10 0.126 ± 0.046 i 7.363 ± 0.111 f 16.687 ± 0.064 b Yt-11 0.435 ± 0.025 c 20.876 ± 0.312 a 4.294 ± 0.129 h 平均值 0.292 12.264 10.374 CV/% 61.55 38.37 53.90 栽培 Zt-1 0.362 ± 0.013 C 14.393 ± 0.540 D 4.430 ± 0.005 J Zt-2 0.560 ± 0.041 A 14.884 ± 0.120 D 4.025 ± 0.041 J Zt-3 0.141 ± 0.061 L 5.927 ± 0.156 HI 4.293 ± 0.073 J Zt-4 0.216 ± 0.074 K 12.135 ± 0.125 E 15.242 ± 0.070 D Zt-5 0.071 ± 0.061 N 5.670 ± 0.079 I 5.752 ± 0.054 I Zt-6 0.128 ± 0.043 M 3.308 ± 0.039 J 20.181 ± 0.358 A Zt-7 0.295 ± 0.071 F 6.209 ± 0.001 HI 19.904 ± 0.063 A Zt-8 0.330 ± 0.064 D 15.408 ± 0.489 BC 13.802 ± 0.092 E Zt-9 0.251 ± 0.041 I 10.196 ± 0.027 G 6.481 ± 0.619 H Zt-10 0.254 ± 0.033 I 15.890 ± 0.316 B 16.098 ± 0.136 C Zt-11 0.281 ± 0.061 G 6.387 ± 0.120 H 16.684 ± 0.106 B Zt-12 0.447 ± 0.081 B 11.392 ± 0.169 F 16.857 ± 0.424 B Zt-13 0.126 ± 0.082 M 11.337 ± 0.261 F 13.287 ± 0.103 E Zt-14 0.268 ± 0.053 H 12.409 ± 0.319 E 11.701 ± 0.047 F Zt-15 0.245 ± 0.023 J 23.557 ± 0.494 A 8.119 ± 0.085 G Zt-16 0.308 ± 0.041 E 14.504 ± 0.120 D 6.909 ± 0.063 H 平均值 0.268 11.475 11.485 CV/% 46.36 44.89 49.95 表 6 不同产地滇重楼根茎与须根中氮磷钾元素的富集系数
Table 6. Bioconcentration factors of nitrogen, phosphorus and potassium in rhizome and fibrous root of P. polyphylla var. yunnanensis from different regions
来源
Origin产地
Region根茎/土壤
Rhizome/Soil须根/土壤
Fibrous/Soil氮
Nitrogen磷
Phosphorus钾
Potassium氮
Nitrogen磷
Phosphorus钾
Potassium野生 Y-1 0.390 0.095 0.486 1.183 0.222 0.909 Y-2 1.951 0.076 0.834 8.347 0.083 0.628 Y-3 2.719 0.065 0.438 5.613 0.148 0.713 Y-4 2.129 0.087 1.493 4.387 0.070 1.607 Y-5 1.671 0.127 0.418 4.145 0.065 0.617 Y-6 6.452 0.095 0.171 9.553 0.054 0.909 Y-7 13.021 0.181 0.136 8.314 0.216 0.382 Y-8 1.193 0.170 0.318 6.063 0.227 0.863 Y-9 0.387 0.060 0.056 1.805 0.049 0.207 Y-10 2.518 0.187 0.357 9.405 0.297 0.568 Y-11 0.314 0.054 0.708 1.273 0.101 1.713 栽培 Z-1 1.281 0.098 0.778 3.858 0.108 1.162 Z-2 0.755 0.102 0.627 3.154 0.149 1.497 Z-3 4.282 0.389 1.171 12.557 0.510 2.325 Z-4 2.337 0.117 0.207 6.492 0.123 0.679 Z-5 6.008 0.188 0.454 22.471 0.240 1.760 Z-6 2.324 0.570 0.282 11.028 0.816 0.617 Z-7 2.366 0.364 0.249 6.975 0.884 0.451 Z-8 1.827 0.131 0.147 4.803 0.131 0.633 Z-9 1.870 0.158 0.456 5.924 0.199 1.801 Z-10 1.088 0.071 0.151 4.721 0.116 0.553 Z-11 0.665 0.176 0.132 4.316 0.326 0.644 Z-12 0.731 0.102 0.228 3.515 0.183 0.800 Z-13 3.703 0.113 0.212 14.868 0.214 1.060 Z-14 2.236 0.117 0.228 6.003 0.186 0.971 Z-15 1.580 0.041 0.222 5.739 0.107 1.282 Z-16 1.393 0.076 0.321 4.812 0.146 1.418 表 7 不同产地滇重楼氮磷钾含量结构主成分因子荷载矩阵
Table 7. Principal component factor load matrix of nitrogen, phosphorus and potassium content structure of P. polyphylla var. yunnanensis from different regions
元素
Element主成分1
Principal component 1主成分2
Principal component 2主成分3
Principal component 3N根茎 0.370 −0.232 −0.754 P根茎 0.708 0.404 −0.182 K根茎 0.547 −0.005 0.157 N须根 0.588 0.558 −0.216 P须根 0.697 0.450 0.225 K须根 0.637 −0.202 0.417 N土壤 −0.477 0.431 0.393 P土壤 −0.599 0.411 −0.126 K土壤 0.558 −0.464 0.246 特征值 3.073 1.342 1.128 贡献率/% 34.14 14.91 12.54 累计贡献率/% 34.14 49.05 61.59 表 8 不同产地滇重楼根茎、须根及根际土壤中氮磷钾主成分得分及排序
Table 8. Principal component scores and ranking of nitrogen, phosphorus and potassium in rhizome, fibrous and rhizospheric soil of P. polyphylla var. yunnanensis from different regions
产地
Place of originF1 排序
SortF2 排序
SortF3 排序
SortF综合
Comprehensive value排序
SortY-1 −1.370 25 −0.397 20 1.623 1 −0.525 22 Y-2 −1.153 24 0.748 5 −1.879 26 −0.841 25 Y-3 −0.156 16 −1.131 25 −0.250 19 −0.411 21 Y-4 −0.314 17 0.091 13 −0.819 24 −0.319 19 Y-5 0.426 8 0.371 8 −0.167 17 0.292 7 Y-6 −1.005 23 −1.637 26 −1.122 25 −1.182 27 Y-7 0.754 6 −1.844 27 −2.677 27 −0.574 23 Y-8 −0.091 15 −0.942 23 0.769 7 −0.122 14 Y-9 −1.902 27 −0.087 16 0.312 9 −1.012 26 Y-10 0.755 5 −0.717 22 0.795 6 0.407 6 Y-11 −1.539 26 0.202 12 1.050 5 −0.590 24 Z-1 −0.717 22 0.521 7 −0.673 22 −0.408 20 Z-2 −0.594 20 1.708 2 −0.208 18 0.042 12 Z-3 1.466 3 0.792 4 −0.792 23 0.843 3 Z-4 0.217 12 −0.347 19 −0.031 15 0.030 13 Z-5 0.084 14 −0.960 24 −0.474 20 −0.282 18 Z-6 1.713 2 −0.339 18 1.230 4 1.118 2 Z-7 2.497 1 2.166 1 0.195 11 1.948 1 Z-8 0.269 11 0.957 3 −0.645 21 0.250 9 Z-9 0.313 10 0.086 14 −0.008 14 0.193 10 Z-10 −0.400 19 −0.133 17 0.596 8 −0.133 15 Z-11 0.095 13 −0.602 21 1.368 3 0.185 11 Z-12 0.383 9 0.258 11 1.602 2 0.601 4 Z-13 0.895 4 0.055 15 0.242 10 0.559 5 Z-14 0.430 7 0.276 9 −0.144 16 0.276 8 Z-15 −0.667 21 0.642 6 0.062 12 −0.202 17 Z-16 −0.389 18 0.262 10 0.047 13 −0.143 16 表 9 不同产地滇重楼根茎、须根及根际土壤中氮磷钾元素之间相关性分析
Table 9. Analysis of Correlation between nitrogen, phosphorus and poassium in rhizome, fibrous root and rhizospheric soil of P. polyphylla var. yunnanensis from different regions
元素
ElementN根茎
NrhizomeP根茎
PrhizomeK根茎
KrhizomeN须根
NfibrousP须根
PfibrousK须根
KfibrousN土壤
NsoilP土壤
PsoilK土壤
KsoilN根茎 − P根茎 0.249 − K根茎 0.125 0.410* − N须根 0.188 0.487** 0.154 − P须根 0.055 0.548** 0.242 0.526** − K须根 −0.011 0.219 0.266 0.270 0.382* − N土壤 −0.302 −0.222 −0.097 −0.186 −0.052 −0.338 − P土壤 −0.174 −0.197 −0.346 −0.152 −0.263 −0.330 0.326 − K土壤 0.236 0.215 0.207 0.003 0.300 0.431* −0.198 −0.375 − 注:**P < 0.01,*P < 0.05。 -
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