1 材料与方法
1.1 材料
1.2 方法
1.3 数据处理
2 结果与分析
2.1 间作对槟榔和香露兜土壤理化性质的影响
图1 单作和间作模式下土壤理化性质不同小写字母表示不同处理间的差异显著(P<0.05);n.s. 表示无显著差异(P>0.05)。 Fig. 1 Soil physicochemical properties in monoculture and intercropping Different lowercase letters indicate significant difference at 0.05 levels among different treatments; n.s. indicates no significant difference at 0.05 levels among different treatments. |
2.2 不同种植模式下土壤理化性质与土壤酶活及根系形态的相关性
图2 不同种植模式下土壤理化性质与土壤酶活性相关性分析* 表示不同处理间的差异显著性检验达0.05水平;** 表示不同处理间的差异显著性检验达0.01水平;*** 表示不同处理间的差异显著性检验达0.001水平。蓝色表示正相关,橙色表示负相关,颜色的深浅说明相关性的大小。 Fig. 2 Correlation between soil physicochemical properties and soil enzyme activity under different planting patterns * indicates significant difference at 0.05 level; ** indicates significant difference at 0.01 level; *** indicates significant difference at 0.001 level. Blue shows a positive correlation, orange shows a negative correlation, and the depth of the color indicates the magnitude of the correlation. |
图3 不同种植模式下土壤理化性质与根系形态指标相关性分析* 表示不同处理间的差异显著性检验达0.05水平;*** 表示不同处理间的差异显著性检验达0.001水平。蓝色表示正相关,橙色表示负相关,颜色的深浅说明相关性的大小。 Fig. 3 Correlation between soil physicochemical properties and root morphological indices under different planting patterns * indicates significant difference at 0.05 level; *** indicates significant difference at 0.001 level. Blue shows a positive correlation, orange shows a negative correlation, and the depth of the color indicates the magnitude of the correlation. |
2.3 间作对槟榔和香露兜植株养分浓度的影响
表1 单作和间作模式下植株养分浓度Tab. 1 Nutrient concentration of arecanut and pandan in monoculture and intercropping |
| 测定部位Measure part | 作物 Crop | 种植模式 Planting pattern | 养分浓度 Nutrient concentration/(mg·g-1) | ||
|---|---|---|---|---|---|
| N | P | K | |||
| 根系 | 槟榔 | 单作 | 25.71±1.16a | 0.71±0.07a | 1.94±0.53a |
| 间作 | 24.03±1.70a | 0.74±0.04a | 3.53±0.96a | ||
| 香露兜 | 单作 | 28.18±2.30a | 0.44±0.04a | 7.13±0.86a | |
| 间作 | 26.00±3.76a | 0.52±0.04a | 8.52±0.57a | ||
| 地上部 | 槟榔 | 单作 | 44.39±9.42b | 0.62±0.09a | 9.40±1.29a |
| 间作 | 62.82±9.37a | 0.63±0.08a | 11.04±0.90a | ||
| 香露兜 | 单作 | 49.79±7.45a | 0.89±0.05b | 11.09±0.27b | |
| 间作 | 55.75±1.45a | 1.12±0.04a | 13.94±0.43a | ||
注:表中数据为平均值±标准差;不同小写字母表示槟榔或香露兜单作和间作间的差异显著性水平(P<0.05)。 | |
Note: The data are mean±standard deviation; Different lowercase letters indicate significant difference at 0.05 levels among arecanut or pandan between monoculture and intercropping. |
2.4 间作对槟榔和香露兜植株养分含量的影响
表2 单作和间作模式下植株养分含量Tab. 2 Nutrient concent of arecanut and pandan in monoculture and intercropping |
| 测定部位 Measure part | 作物 Crops | 种植模式 Planting pattern | 单株养分含量 Nutrient concent per plant/mg | ||
|---|---|---|---|---|---|
| N | P | K | |||
| 根系 | 槟榔 | 单作 | 46.76±8.22a | 1.28±0.08b | 3.43±0.41b |
| 间作 | 56.28±4.43a | 1.73±0.07a | 7.50±1.45a | ||
| 香露兜 | 单作 | 142.65±10.62a | 2.28±0.48a | 36.00±2.16b | |
| 间作 | 158.55±17.75a | 3.18±0.18a | 52.13±4.00a | ||
| 地上部 | 槟榔 | 单作 | 447.19±57.95a | 6.51±1.92a | 95.33±6.32a |
| 间作 | 696.62±187.92a | 7.10±1.96a | 121.16±17.74a | ||
| 香露兜 | 单作 | 1267.96±48.08a | 22.83±2.02a | 285.43±28.96a | |
| 间作 | 1647.94±274.04a | 33.45±7.20a | 414.71±9.27a | ||
注:表中数据为平均值±标准差;不同小写字母表示槟榔或香露兜单作和间作间的差异显著性水平(P<0.05)。 | |
Note: The data are mean ± standard deviation; Different lowercase letters indicate significant difference at 0.05 levels among arecanut or pandan between monoculture and intercropping. |
2.5 间作对槟榔和香露兜养分吸收效率的影响
图4 单作和间作模式下槟榔和香露兜养分吸收效率不同小写字母表示不同处理间的差异显著(P<0.05);n.s. 表示无显著差异(P>0.05)。 Fig. 4 Nutrient absorption efficiency of arecanut and pandan in monoculture and intercropping Different lowercase letters indicate significant difference at 0.05 levels among different treatments; n.s. indicates no significant difference at 0.05 levels among different treatments. |
图5 不同种植模式下养分吸收效率与根系形态指标相关性分析* 表示不同处理间的差异显著性检验达0.05水平;** 表示不同处理间的差异显著性检验达0.01水平;*** 表示不同处理间的差异显著性检验达0.001水平。蓝色表示正相关,橙色表示负相关,颜色的深浅说明相关性的大小。 Fig. 5 Correlation between nutrient absorption efficiency and root morphological indices under different planting patterns * indicates significant difference at 0.05 level; ** indicates significant difference at 0.01 level; *** indicates significant difference at 0.001 level. Blue shows a positive correlation, orange shows a negative correlation, and the depth of the color indicates the magnitude of the correlation. |
