长期免耕和深松提高了土壤团聚体颗粒态有机碳及全氮含量

李景,吴会军,武雪萍,王碧胜,姚宇卿,吕军杰

Long-Term Conservation Tillage Enhanced Organic Carbon and Nitrogen Contents of Particulate Organic Matter in Soil Aggregates

LI Jing,WU HuiJun,WU XuePing,WANG BiSheng,YAO YuQing,LÜ JunJie

表3 不同耕作处理下干筛团聚体的质量百分含量

Table 3 The mass percentage of aggregates under different tillage treatments

处理 Treatment 团聚体相对含量 Mass percentage of aggregates（%） >2 mm 1-2 mm 0.25-1 mm <0.25 mm RT 35.53 a 11.11 c 24.71 c 28.65 b NT 26.19 c 14.87 a 31.46 a 27.47 b SM 27.53 bc 12.95 b 31.48 a 28.04 b CT 29.68 b 11.88 c 26.95 b 31.49 a