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3 不同生育时期不同土层土壤全氮含量的方差分析

Table 3 Variance analysis of soil total nitrogen contents 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 0.88b 0.41c 0.33b 1.27c 0.79b 0.56b 1.24b 0.55c 0.42b 0.92c 0.55b 0.39b J 0.94b 0.57b 0.34b 1.43b 0.82b 0.58b 1.22b 0.66bc 0.45b 1.00b 0.58ab 0.43ab JZ 1.08ab 0.66ab 0.35b 1.76a 0.83b 0.61b 1.41b 0.84ab 0.51b 1.06b 0.59ab 0.43ab JF 1.34a 0.74a 0.51a 1.87a 0.90a 0.70a 1.80a 0.97a 0.64a 1.35a 0.65a 0.45a