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

表2 不同生育时期不同土层土壤有机碳含量的方差分析

Table 2 Variance analysis of soil organic carbon content in different soil layers at different growth stages g/kg

处理 Treatment 苗期Seedling stage 拔节期Jointing stage 开花期Flowering stage 成熟期Mature stage 0~20cm 20~40cm 40~60cm 0~20cm 20~40cm 40~60cm 0~20cm 20~40cm 40~60cm 0~20cm 20~40cm 40~60cm CK 25.1d 22.1b 19.1ab 36.2b 22.8c 19.5a 32.6b 23.7d 17.7c 26.5d 22.6d 17.6c J 30.1c 26.9a 18.5b 35.8b 29.9ab 20.4a 35.9ab 29.5b 19.7b 30.1c 26.7b 19.4b JZ 32.2b 27.3a 19.6a 36.3b 27.1b 21.2a 35.9ab 26.7c 20.8ab 34.5b 25.3c 19.7ab JF 34.5a 29.9a 19.6a 40.9a 33.6a 21.9a 37.9a 32.5a 21.1a 36.5a 28.3a 20.4a