地膜覆盖与施肥对秸秆碳氮在土壤中固存的影响
王淑颖(),李小红,程娜,付时丰,李双异,孙良杰,安婷婷(),汪景宽
Effects of Plastic Film Mulching and Fertilization on the Sequestration of Carbon and Nitrogen from Straw in Soil
WANG ShuYing(),LI XiaoHong,CHENG Na,FU ShiFeng,LI ShuangYi,SUN LiangJie,AN TingTing(),WANG JingKuan

图4. 秸秆添加后土壤有机碳与全氮含量的比值(a)及土壤中秸秆碳与氮含量的比值(b)

Fig. 4. The percentage of soil organic carbon (SOC) to total nitrogen (TN) (a) and the percentage of straw derived-SOC (13C-SOC) to straw derived-TN (15N-TN) (b) in soil added with 13C15N-labeled straw under different mulching and fertilization treatments