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 有机无机复混肥对土壤理化性状的影响
表1 不同施肥量下的土壤理化性状Tab. 1 Physical and chemical properties of soil under different fertilization rates |
| 指标 Index | 施肥量 Fertilization/(kg·hm-2) | 苗期 Seeding | 块茎形成期 Forming | 块茎膨大期 Expanding | 块茎成熟期 Maturing |
|---|---|---|---|---|---|
| 孔隙度/% | 0 | 63.1d | 61.8c | 59.7d | 57.5c |
| 750 | 64.8c | 63.5b | 62.2c | 60.5b | |
| 1500 | 65.9b | 64.8a | 63.9a | 62.1a | |
| 2250 | 67.0a | 65.1a | 64.0a | 62.2a | |
| 3000 | 65.6b | 64.2b | 63.1b | 61.4a | |
| 碱解氮含量/(mg·kg-1) | 0 | 131.4e | 123.4e | 114.1e | 101.5e |
| 750 | 136.5d | 131.8d | 121.5d | 111.0d | |
| 1500 | 141.6c | 137.5c | 129.2c | 121.5c | |
| 2250 | 146.3b | 142.2b | 136.9b | 130.3b | |
| 3000 | 148.8a | 146.6a | 141.6a | 136.4a | |
| 速效磷含量/(mg·kg-1) | 0 | 12.6d | 11.0d | 8.7d | 7.2d |
| 750 | 17.0c | 16.1c | 14.8c | 12.8c | |
| 1500 | 20.7b | 18.8b | 16.7b | 14.2b | |
| 2250 | 23.1a | 20.7a | 18.7a | 17.0a | |
| 3000 | 23.6a | 21.2a | 19.2a | 17.6a | |
| 速效钾含量/(mg·kg-1) | 0 | 123.6e | 100.1e | 75.6e | 62.4e |
| 750 | 176.3d | 149.2d | 124.5d | 118.4d | |
| 1500 | 185.5c | 156.1c | 135.2c | 125.3c | |
| 2250 | 192.0b | 163.7b | 140.5b | 132.2b | |
| 3000 | 207.5a | 171.2a | 147.0a | 138.5a | |
| 有机质含量/(g·kg-1) | 0 | 15.0d | 13.1d | 12.2d | 10.7d |
| 750 | 17.4c | 16.4c | 15.4c | 13.2c | |
| 1500 | 19.6b | 18.5b | 16.6b | 15.4b | |
| 2250 | 20.8a | 19.1ab | 18.0a | 16.8a | |
| 3000 | 21.2a | 19.9a | 18.3a | 17.2a |
注:同列不同小写字母表示差异显著(P<0.05)。 | |
Note: Different lowercase letters in the same column indicate significant difference (P<0.05). |
2.2 有机无机复混肥对旱藕生长的影响
表2 不同施肥量下的旱藕农艺性状Tab. 2 Agronomic properties of edible canna under different fertilization rates |
| 指标 Index | 施肥量 Fertilization/(kg·hm-2) | 苗期 Seeding | 块茎形成期 Forming | 块茎膨大期 Expanding | 块茎成熟期 Maturing |
|---|---|---|---|---|---|
| 单株分蘖数 | 0 | - | - | 4.44e | - |
| 750 | - | - | 6.56d | - | |
| 1500 | - | - | 8.22c | - | |
| 2250 | - | - | 9.78b | - | |
| 3000 | - | - | 11.00a | - | |
| 倒伏率/% | 0 | - | - | 0.00e | - |
| 750 | - | - | 5.83d | - | |
| 1500 | - | - | 16.67c | - | |
| 2250 | - | - | 25.83b | - | |
| 3000 | - | - | 33.33a | - | |
| 株高/cm | 0 | 72.56b | 172.22d | 193.89d | 216.78e |
| 750 | 99.00a | 250.44c | 274.44c | 295.44d | |
| 1500 | 104.44a | 262.89b | 294.11b | 329.00c | |
| 2250 | 105.78a | 273.22a | 306.78a | 361.56b | |
| 3000 | 106.56a | 279.56a | 317.11a | 381.67a | |
| 茎径/mm | 0 | 15.79d | 19.74d | 18.82d | 21.35e |
| 750 | 19.38c | 21.94c | 22.60c | 25.00d | |
| 1500 | 20.83b | 23.35b | 24.44b | 27.88c | |
| 2250 | 21.53ab | 24.51ab | 28.11a | 31.21b | |
| 3000 | 22.21a | 25.22a | 29.81a | 32.81a |
注:同列不同小写字母表示差异显著(P<0.05);“-”表示未开展调查。 | |
Note: Different lowercase letters in the same column indicate significant difference (P<0.05); “-” indicated there was no investigation. |
2.3 有机无机复混肥对旱藕块茎产量的影响
表3 不同施肥量下的旱藕块茎产量Tab. 3 Root tuber yield of edible canna under different fertilization rates |
| 施肥量 Fertilization /(kg·hm-2) | 群体产量 Population yield /(kg·hm-2) | 比CK增产 Over the CK /% |
|---|---|---|
| 0 | 63 965±3 358d | |
| 750 | 76 705±2 451c | 19.92 |
| 1500 | 95 048±2 253b | 48.59 |
| 2250 | 106 186±2 041a | 66.01 |
| 3000 | 95 581±1 751b | 49.43 |
注:同列不同小写字母表示差异显著(P<0.05)。 | |
Note: Different lowercase letters in the same column indicate significant difference (P<0.05). |
2.4 有机无机复混肥对旱藕块茎品质的影响
表4 不同施肥量下的旱藕块茎品质Tab. 4 Root tuber quality of edible canna under different fertilization rates |
| 施肥量 Fertilization /(kg·hm-2) | 淀粉含量 Starch content /% | 可溶性糖含量 Soluble sugar content /(mg·g-1) | 还原糖含量 Reducing sugar content /(mg·g-1) | 可溶性蛋白质含量Soluble protein content /(mg·g-1) |
|---|---|---|---|---|
| 0 | 22.19e | 6.93e | 1.92d | 9.10e |
| 750 | 23.89d | 7.57d | 2.28c | 13.07d |
| 1500 | 25.59c | 8.33c | 2.46bc | 14.89c |
| 2250 | 26.71b | 9.12b | 2.54ab | 16.06b |
| 3000 | 28.03a | 9.67a | 2.62a | 17.31a |
注:同列不同小写字母表示差异显著(P<0.05)。 | |
Note: Different lowercase letters in the same column indicate significant difference (P<0.05). |
