1 材料与方法
1.1 材料
表1 树皮和菌渣的基本理化性质Tab. 1 The basic physicochemical properties of pine bark and SMS |
| 项目 Items | 容重 Bulk density/ (g·cm-3) | 总孔隙度 Total porosity/% | 持水孔隙度 Water-holding porosity/% | 透气孔隙度 Permeability porosity/% | 电导率 Conductivity/ (μS·cm-1) | pH |
|---|---|---|---|---|---|---|
| 树皮 | 0.18±0.01b | 65.92±2.02c | 7.91±0.72c | 58.01±2.15a | 8.27±3.15c | 7.07±0.11b |
| 腐熟菌渣 | 0.24±0.02a | 73.53±2.35b | 24.30±1.08b | 49.23±1.92b | 916.00±97.00b | 8.86±0.21a |
| 新鲜菌渣 | 0.24±0.02a | 81.30±2.61a | 58.96±1.91a | 22.34±0.76c | 1227.00±108.00a | 8.75±0.26a |
Note: Different lowercase letters after the same column of data indicate significant difference among the treatments (P<0.05). | |
注:同列数据后不同小写字母表示各处理间差异显著(P<0.05)。 |
1.2 方法
表2 菌渣替代树皮作为石斛栽基质的配比Tab. 2 Ratio of SMS substitute the pine bark for cultivation matrix of P. geesteranus |
| 处理 Treatment | 树皮 Pine bark | 腐熟菌渣 SMC | 处理 Treatment | 树皮 Pine bark | 新鲜菌渣 SMS |
|---|---|---|---|---|---|
| FCK | 4 | 0 | WCK | 4 | 0 |
| FT1 | 3 | 1 | WT1 | 3 | 1 |
| FT2 | 2 | 2 | WT2 | 2 | 2 |
| FT3 | 1 | 3 | WT3 | 1 | 3 |
| WT4 | 0 | 4 |
1.3 数据处理
2 结果与分析
2.1 添加不同比例菌渣对霍山石斛栽培基质理化性质的影响
表3 不同比例菌渣替代树皮对石斛栽培基质理化性质的影响Tab. 3 Effects on basic physicochemical properties of P. geesteranus cultivation matrix in with pine bark substituted by SMS or SMC |
| 项目 Items | 处理 Treatment | 容重 Bulk density/ (g·cm-3) | 总孔隙度 Total porosity/% | 透气孔隙度 Permeability porosity/% | 持水孔隙度 Water-holding porosity/% | 电导率 Conductivity/ (μS·cm-1) | pH |
|---|---|---|---|---|---|---|---|
| 腐熟菌渣 | FCK | 0.15±0.01c | 66.72±1.72c | 58.05±1.29a | 8.67±0.69d | 38.80±11.22d | 6.88±0.25c |
| FT1 | 0.20±0.02b | 70.11±0.69b | 58.01±0.85a | 12.10±0.58c | 412.75±26.58c | 6.78±0.32c | |
| FT2 | 0.25±0.02a | 68.51±1.61bc | 50.66±1.34c | 17.85±0.97b | 731.42±56.78b | 7.72±0.31b | |
| FT3 | 0.26±0.02a | 76.90±1.21a | 53.13±1.59b | 23.77±1.35a | 941.83±45.04a | 8.43±0.46a | |
| 新鲜菌渣 | WCK | 0.16±0.02c | 65.92±1.14cd | 58.01±1.06a | 7.91±0.45e | 38.27±3.87e | 7.07±0.22c |
| WT1 | 0.22±0.02b | 68.00±1.82c | 49.67±1.06b | 18.33±1.69d | 263.00±22.15d | 7.23±0.37c | |
| WT2 | 0.26±0.02a | 65.07±1.37d | 31.56±0.93c | 33.51±1.65c | 514.00±31.50c | 7.45±0.27c | |
| WT3 | 0.27±0.02a | 69.23±1.54b | 25.56±1.27d | 43.67±1.87b | 701.00±43.34b | 8.29±0.17b | |
| WT4 | 0.24±0.02ab | 73.53±1.94a | 24.30±1.04d | 49.23±1.44a | 916.00±42.54a | 8.86±0.43a |
Note: Different lowercase letters after the same column of data indicate significant difference among the treatments (P<0.05). | |
注:同列数据后不同小写字母表示各处理间差异显著(P<0.05)。 |
2.2 腐熟菌渣对石斛生长状况的影响
2.3 新鲜菌渣对石斛生长状况的影响
2.4 腐熟菌渣理化性质对石斛生长影响的冗余分析
图3 石斛生长指标-基质理化性质排序图RDA1和RDA2为主成分载荷,编号1~5为FCK组样本,6~10为FT1组样本,11~15为FT2组样本,以此类推,同组样品使用相同性状表示。 Fig. 3 RDA ranking of growth index of P. geesteranus and physicochemical characteristics in SMC RDA1and RDA2 is the load of principal components. No. 1-5 represent the samples of FCK, 6-10 represent the samples of FT1, 11-15 represent the samples of FT2, and so on, same samples are identified by same shape. |
2.5 新鲜菌渣理化性质对石斛生长影响的冗余分析
图4 石斛生长指标-基质理化性质排序图RDA1和RDA2为主成分载荷,编号1~5为WCK组样本,6~10为WT1组样本,11~15为WT2组样本,以此类推,同组样品使用相同性状表示。 Fig. 4 RDA ranking of growth index of P. geesteranus and physicochemical characteristics in SMS RDA1and RDA2 is the load of principal components. No. 1-5 represent the samples of WCK, 6-10 represent the samples of WT1, 11-15 represent the samples of WT2, and so on, same samples are identified by same shape. |
