秸秆还田下减氮对土壤养分、酶活性和冬小麦产量的影响

刘红杰, 任德超, 倪永静, 葛君, 张素瑜, 吕国华, 胡新

Effects of Straw Returning and Reducing Nitrogen Application on Soil Nutrients, Enzyme Activities and Wheat Yield

Liu Hongjie, Ren Dechao, Ni Yongjing, Ge Jun, Zhang Suyu, Lü Guohua, Hu Xin

表2 不同处理对土壤酶活性的影响

Table 2 Effects of different treatments on soil enzyme activities

处理 Treatment 过氧化氢酶 Catalase [mg/(g·20min)] 脲酶 Urease [mg/(g·h)] 碱性磷酸酶 Alkaline phosphatase [mg/(g·h)] 蔗糖酶 Sucrase [mg/(g·h)] T1 3.55±0.18a 11.44±0.71a 0.26±0.01bc 0.48±0.02c T2 3.47±0.14a 11.52±0.40a 0.33±0.01a 0.57±0.05ab T3 3.11±0.07b 11.67±0.29a 0.34±0.01a 0.60±0.02a T4 3.02±0.16bc 11.58±0.75a 0.28±0.02b 0.58±0.02ab T5 2.63±0.09d 11.49±0.44a 0.24±0.02c 0.53±0.02bc T6 2.84±0.10cd 11.87±0.77a 0.20±0.01d 0.50±0.03c