减氮条件下有机物料还田对麦田酶活性及其土壤碳氮含量的影响 |
李春喜,李斯斯,邵云,马守臣,刘晴,翁正鹏,李晓波 |
Effects of Organic Materials Returning on Enzyme Activities and Soil Carbon and Nitrogen Content in Wheat Field under Nitrogen-Reducing Conditions |
Chunxi Li,Sisi Li,Yun Shao,Shouchen Ma,Qing Liu,Zhengpeng Weng,Xiaobo Li |
图1 小麦不同生育时期不同土层土壤脲酶活性变化 |
Fig.1 Changes of urease activities in different soil layers of wheat at different growth stages |