1 材料与方法
1.1 材料
表1 供试土壤的基本理化性质Tab. 1 Basic properties of sampled soil in experimental field |
| 土层 Soil layer/cm | pH | 有机碳 Organic carbon/(g×kg-1) | 全磷TP/(g×kg-1) | 全钾TK/(g×kg-1) | 全氮TN/(g×kg-1) | 有效P Available P/(mg×kg-1) | 有效K Available K/(mg×kg-1) |
|---|---|---|---|---|---|---|---|
| 0~20 | 7.86 | 8.71 | 0.10 | 5.85 | 0.54 | 3.48 | 86.31 |
1.2 方法
1.3 数据处理
2 结果与分析
2.1 不同批次火龙果果实营养品质对稻壳有机肥施用量的响应
表2 不同稻壳有机肥施用量下火龙果果实的营养品质Tab. 2 Nutrient quality of pitaya fruit under different amounts of chaff organic fertilizer |
| 营养品质 Nutritional quality | 施肥处理 Treatment | 月-日Month-day | |||
|---|---|---|---|---|---|
| 07-19 | 09-06 | 09-25 | 10-23 | ||
| 还原糖/(mg•g-1) | L | 105.51±20.59a | 115.39±13.17a | 89.86±14.21a | 119.36±5.96a |
| M | 85.57±22.04c | 104.70±14.58a | 82.27±12.87a | 110.30±16.47ab | |
| H | 92.18±16.24b | 114.77±14.92a | 87.30±13.98a | 108.67±15.66b | |
| 可溶性蛋白/(mg•g-1) | L | 0.540±0.139a | 0.611±0.140a | 1.604±0.368a | 0.844±0.202a |
| M | 0.627±0.101a | 0.573±0.124b | 1.416±0.215b | 0.968±0.220a | |
| H | 0.548±0.168a | 0.449±0.057c | 1.291±0.272c | 0.898±0.220a | |
| 花青素/(mg•g-1) | L | 0.161±0.063b | 0.118±0.030a | 0.098±0.021a | 0.113±0.017a |
| M | 0.170±0.020a | 0.083±0.017c | 0.079±0.026a | 0.115±0.016a | |
| H | 0.131±0.028c | 0.092±0.019b | 0.095±0.024a | 0.112±0.025a | |
| 可溶性固形物/Brix | L | 12.59±0.86a | 12.52±1.22b | 11.06±1.19a | 13.23±0.66a |
| M | 12.82±1.13a | 11.90±0.77c | 10.71±1.30a | 12.66±1.32a | |
| H | 12.23±1.34a | 13.39±1.45a | 11.11±1.22a | 12.53±1.65a | |
| 维生素C/(mg•g-1) | L | - | 0.504±0.093ab | 0.664±0.076a | 0.560±0.044c |
| M | - | 0.514±0.076a | 0.686±0.066a | 0.695±0.128a | |
| H | - | 0.458±0.050b | 0.669±0.067a | 0.640±0.113b | |
注:同列数据后不同小写字母表示处理间差异显著(P<0.05)。-表示不涉及。 | |
Note: Different lowercase letters in the same column indicate significant difference between treatments at the 0.05 level. - indicate not involved. |
2.2 不同批次火龙果果实可食率对稻壳有机肥施用量的响应
2.3 不同批次火龙果果数和产量对稻壳有机肥施用量的响应
表3 不同稻壳有机肥施用量下火龙果的果数和产量Tab. 3 Number and yield of pitaya fruit under different amounts of chaff organic fertilizer |
| 项目 Item | 处理 Treatment | 月-日Month-day | 总量 Total | |||||
|---|---|---|---|---|---|---|---|---|
| 07-19 | 07-24 | 08-19 | 09-06 | 09-25 | 10-23 | |||
| 果数 | L | 64.67±15.50a | 74.00±31.32a | 17.00±13.45a | 3.67±4.62c | 85.33±41.20a | 10.33±2.89a | 255.00a |
| M | 34.67±28.88a | 61.33±14.64a | 19.00±10.44a | 17.33±3.51a | 84.33±32.33a | 10.33±5.13a | 235.00a | |
| H | 39.33±25.11a | 75.33±12.01a | 27.33±6.11a | 10.00±2.00b | 101.33±25.03a | 15.67±13.87a | 281.67a | |
| 产量 /(t•hm-2) | L | 7.96a | 7.27a | 3.17a | 0.53c | 9.62a | 1.88a | 30.43a |
| M | 4.55a | 5.43a | 2.95a | 2.53a | 9.18a | 2.08a | 27.76a | |
| H | 4.94a | 7.77a | 3.53a | 1.42b | 10.51a | 2.53a | 32.28a | |
注:同列数据后不同小写字母表示处理间差异显著(P<0.05)。 | |
Note: Different lowercase letters in the same column indicate significant difference between treatments at the 0.05 level. |
2.4 稻壳有机肥施用量与火龙果品质及产量的相关性分析
表4 稻壳有机肥施用量与火龙果品质及产量的相关性分析Tab. 4 Correlative analysis of chaff organic fertilizer amount and quality/yield in pitaya |
| 营养品质 Nutritional quality | 施肥量 Fertilization amount | |||
|---|---|---|---|---|
| 月-日Month-day | ||||
| 07-19 | 09-06 | 09-25 | 10-23 | |
| 还原糖 | -0.502 | 0.138 | -0.147 | -0.841 |
| 可溶性蛋白 | -0.107 | -0.994 | -0.954 | 0.256 |
| 花青素 | -0.850 | -0.570 | 0.043 | -0.500 |
| 可溶性固形物 | -0.745 | 0.724 | 0.300 | -0.859 |
| 维生素C | - | -0.877 | 0.028 | 0.426 |
| 可食率 | -0.968 | -0.411 | -0.526 | -0.836 |
| 果数 | -0.654 | 0.287 | 0.926 | 0.945 |
| 产量 | -0.683 | 0.267 | 0.786 | 1.000* |
注:*表示在P<0.05的水平下(双侧)相关性显著;-表示不涉及。 | |
Note: * indicates significant difference at the 0.05 level (both sides); - indicate not involved. |
2.5 不同稻壳有机肥施用量下的火龙果经济效益分析
表5 不同稻壳有机肥施用量下火龙果的经济效益分析Tab. 5 Economic benefits of pitaya fruit under different amounts of chaff organic fertilizer yuan•hm-2 |
| 施肥处理 Treatment | 产值 Cropvalue | 有机肥成本 Fertilizercost | 其他成本 Othercost | 纯收益 Income |
|---|---|---|---|---|
| L | 182 580 | 6 750 | 15 000 | 160 830 |
| M | 166 560 | 13 500 | 15 000 | 138 060 |
| H | 193 680 | 27 000 | 15 000 | 151 680 |
