有机肥对羊草草原土壤细菌群落多样性的影响

商丽荣,万里强,李向林

Effects of Organic Fertilizer on Soil Bacterial Community Diversity in Leymus chinensis Steppe

SHANG LiRong,WAN LiQiang,LI XiangLin

表1 不同有机肥处理的土壤化学性质和地上部生物量

Table 1 Chemical properties and aboveground biomass of the soils in different organic fertilization treatments

处理 Treatment pH 全氮 TN (g·kg-1) 全磷 TP (g·kg-1) 全钾 TK (g·kg-1) 有效氮 AN (mg·kg-1) 有效磷 AP (mg·kg-1) 有效钾 AK (mg·kg-1) 有机质 SOM (g·kg-1) 生物量 DM (g·m-2) ck 6.28±0.10b 2.51±0.25a 0.66±0.12a 31.85±0.61a 172.84±10.24a 7.43±0.94b 179.42±31.01c 55.48±0.90a 172.8±10.68c a1 6.31±0.02b 2.52±0.30a 0.68±0.10a 32.64±1.44a 175.90±11.67a 8.89±1.39b 209.19±55.79bc 52.15±6.19a 198.38±14.94bc a2 6.51±0.11b 2.26±0.12a 0.69±0.21a 31.96±0.84a 167.76±3.12a 8.34±1.29b 195.03±32.10bc 50.32±5.18a 180.91±2.90bc a3 7.02±0.54a 2.47±0.08a 0.73±0.20a 33.12±0.71a 184.54±15.22a 10.20±0.15a 252.14±4.68ab 55.40±5.49a 214.27±5.26bc b1 6.21±0.08b 2.56±0.28a 0.74±0.26a 32.18±0.51a 183.70±3.66a 9.06±1.87b 250.67±12.13ab 55.75±1.76a 191.49±1.99ab b2 6.14±0.12b 2.10±0.07a 0.58±0.04a 31.84±0.56a 169.34±6.80a 8.18±0.48b 220.20±23.32bc 48.31±5.60a 219.78±10.73ab b3 6.17±0.20b 2.40±0.26a 0.55±0.01a 32.59±0.88a 187.96±5.60a 8.84±0.31b 292.44±20.67a 55.78±4.43a 244.11±13.59a