甘薯不同轮作模式对土壤团聚体稳定性及碳、氮含量的影响

刘亚军, 王文静, 胡启国, 马婷婷, 储凤丽

Effects of Different Rotation Patterns of Sweet Potato on Soil Aggregate Stability and Contents of Carbon and Nitrogen

Liu Yajun, Wang Wenjing, Hu Qiguo, Ma Tingting, Chu Fengli

表2 不同处理对土壤团聚体稳定性的影响

Table 2 Effects of different treatments on soil aggregate stability

土层 Soil layer 处理 Treatment 平均重量 直径 MWD 几何平均 直径 GMD >0.25 mm 团聚体含量 R>0.25 0~20 cm CK 1.34±0.02c 0.82±0.05b 58.01±0.71c SWR 1.38±0.02bc 0.86±0.03ab 62.85±0.81b SWC 1.44±0.03a 0.88±0.03ab 63.61±1.49b SWP 1.42±0.03ab 0.90±0.04a 67.70±1.78a 20~40 cm CK 1.13±0.05a 0.63±0.04a 49.81±0.18c SWR 1.15±0.04a 0.65±0.04a 52.52±0.97b SWC 1.19±0.03a 0.67±0.01a 53.65±0.36b SWP 1.18±0.03a 0.68±0.01a 56.30±1.15a