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1,2(
),吴会军2(),武雪萍2(),王碧胜3,姚宇卿4,吕军杰4
),吴会军2(),武雪萍2(),王碧胜3,姚宇卿4,吕军杰4
Long-Term Conservation Tillage Enhanced Organic Carbon and Nitrogen Contents of Particulate Organic Matter in Soil Aggregates
LI Jing1,2(),WU HuiJun2(),WU XuePing2(),WANG BiSheng3,YAO YuQing4,LÜ JunJie4
),WU HuiJun2(),WU XuePing2(),WANG BiSheng3,YAO YuQing4,LÜ JunJie4
图2. 不同耕作措施下土壤团聚体的有机碳（a）和全氮含量（b）
小写字母表示相同团聚体粒级不同耕作处理间的比较,大写字母代表相同耕作处理不同团聚体粒级间的比较。不同字母表示差异显著（P<0.05）。下同
Fig. 2. SOC (a) and TN contents (b) of aggregates under different tillage treatments
Lowercase letters denote differences between tillage treatments in the same size class of aggregate, likewise uppercase letters denote significant differences among aggregate size classes in a single tillage treatment and, different letters mean significance at 5% level. The same as below
