不同土壤改良措施对机械压实酸化蔗地土壤理化性质及微生物群落结构的影响

罗俊,林兆里,李诗燕,阙友雄,张才芳,杨仔奇,姚坤存,冯景芳,陈建峰,张华

Effects of different soil improvement measures on soil physicochemical properties and microbial community structures in mechanically compacted acidified sugarcane field

Jun LUO,Zhao-Li LIN,Shi-Yan LI,You-Xiong QUE,Cai-Fang ZHANG,Zai-Qi YANG,Kun-Cun YAO,Jing-Fang FENG,Jian-Feng CHEN,Hua ZHANG

表5 不同土壤改良措施对土壤三相容积率的影响

Table 5 Effects of different soil improvement measures on three-phase volume fraction of soil

土层/土壤改良措施 Soil layer/soil improvement measure 固相容积率 Solid volume (%) 液相容积率 Liquid volume (%) 气相容积率 Gas volume (%) 新植 New planting 宿根 Perennial root 新植 New planting 宿根 Perennial root 新植 New planting 宿根 Perennial root 0-10 cm 对照 Control (B1) 39.90±3.67a 37.84±2.62a 21.46±2.67a 18.24±3.38ab 38.64±2.71a 43.92±2.89a 松土精 Loose soil essence (B2) 37.75±2.02ab 37.14±3.47a 22.05±3.67a 19.84±2.61ab 40.21±2.08a 43.02±2.59a 生物菌肥 Biological bacterial fertilizer (B3) 37.55±3.74abc 37.78±2.42a 21.19±2.83a 17.22±2.90b 41.25±2.08a 45.00±2.53a 有机肥 Organic fertilizer (B4) 34.66±3.04c 35.67±3.02a 24.03±3.84a 21.01±2.43a 41.32±1.47a 43.32±2.68a 生石灰Quick lime (B5) 36.27±2.50bc 37.78±2.60a 22.80±2.90a 17.44±3.30b 40.93±4.05a 44.78±4.45a 10-20 cm 对照 Control (B1) 46.29±4.92a 42.31±4.22a 23.29±2.45b 20.30±3.60b 30.42±5.70a 37.40±4.19a 松土精 Loose soil essence (B2) 44.83±3.33a 40.22±3.17a 23.77±3.76b 21.92±2.81ab 31.40±4.56a 37.86±1.26a 生物菌肥 Biological bacterial fertilizer (B3) 44.82±4.33a 40.44±3.49a 22.69±3.12b 20.27±2.38b 32.49±5.16a 39.29±4.53a 有机肥 Organic fertilizer (B4) 39.93±5.29b 38.60±3.87a 27.15±4.43a 23.24±2.21a 32.92±5.69a 38.16±3.60a 生石灰Quick lime (B5) 45.28±4.62a 39.61±4.29a 24.00±2.89b 21.05±1.71ab 30.72±3.91a 39.34±4.79a 20-30 cm 对照 Control (B1) 51.88±3.90a 48.77±3.18ab 22.91±5.14a 22.61±2.58ab 25.21±2.16a 28.63±3.94a 松土精 Loose soil essence (B2) 50.42±5.01ab 46.66±4.26ab 23.42±5.19a 23.14±2.89ab 26.17±3.03a 30.21±3.43a 生物菌肥 Biological bacterial fertilizer (B3) 51.64±3.92a 49.36±4.52a 23.04±3.13a 22.05±2.21b 25.32±3.43a 28.59±3.83a 有机肥 Organic fertilizer (B4) 46.72±3.78b 44.24±6.07b 26.91±5.14a 24.74±2.51a 26.37±2.72a 31.02±4.60a 生石灰Quick lime (B5) 51.55±4.32a 49.77±5.11a 23.46±4.46a 21.11±2.85b 24.99±3.69a 29.13±4.42a 30-40 cm 对照 Control (B1) 51.15±3.74ab 51.28±3.21ab 24.81±4.46a 23.12±2.91a 24.03±2.42a 25.60±3.05a 松土精 Loose soil essence (B2) 49.06±6.35ab 50.38±3.96ab 25.80±6.65a 23.94±4.00a 25.15±1.65a 25.69±3.35a 生物菌肥 Biological bacterial fertilizer (B3) 51.95±4.20a 51.09±2.73ab 24.84±3.58a 22.07±2.78a 23.21±2.76a 26.85±2.34a 有机肥 Organic fertilizer (B4) 46.92±4.92b 48.54±3.37b 28.31±5.84a 24.98±3.01a 24.76±2.46a 26.48±2.18a 生石灰Quick lime (B5) 50.31±3.70ab 51.94±2.60a 26.11±4.72a 22.19±2.58a 23.58±3.25a 25.87±1.69a 平均Average 对照 Control (B1) 47.31±6.60a 45.05±6.28a 23.12±4.17b 21.06±3.65bc 29.57±6.89b 33.89±8.18a 松土精 Loose soil essence (B2) 45.51±6.73a 43.60±6.53a 23.76±5.01b 22.21±3.41b 30.73±6.91ab 34.19±7.32a 生物菌肥 Biological bacterial fertilizer (B3) 46.49±7.21a 44.67±6.73a 22.94±3.35b 20.40±3.29c 30.57±8.06ab 34.93±8.38a 有机肥 Organic fertilizer (B4) 42.06±6.75b 41.76±6.59b 26.60±5.11a 23.49±2.92a 31.34±7.37a 34.74±7.42a 生石灰Quick lime (B5) 45.85±7.25a 44.78±7.38a 24.09±4.19b 20.45±3.41c 30.06±8.03ab 34.78±8.78a F值F-value 土层Soil layer (A) 255.88** 246.85** 70.82** 106.19** 501.98** 467.34** 土壤改良措施Soil improvement measures (B) 21.91** 9.17** 54.61** 36.52** 3.32* 1.11 A×B 0.43 0.59 0.10 0.26 0.43 0.60