有机培肥与轮耕方式对夏玉米田土壤碳氮和产量的影响

孙凯,刘振,胡恒宇,李耕,刘文涛,杨柳,宁堂原,王彦玲

Effect of organic fertilizer and rotational tillage practices on soil carbon and nitrogen and maize yield in wheat-maize cropping system

Kai SUN,Zhen LIU,Heng-Yu HU,Geng LI,Wen-Tao LIU,Liu YANG,Tang-Yuan NING,Yan-Ling WANG

表3 有机培肥与轮耕方式对0~40 cm土层有机碳、全氮和C/N的影响

Table 3 Effects of organic manure and rotational tillage practices on soil organic carbon and total nitrogen and C/N in 0-40 cm soil layer (mg g-1)

处理 Treatment 2016 2017 C N C/N C N C/N PRS 8.54 b 0.72 c 11.93 a 9.65 a 0.85 a 11.24 b PSN 8.21 c 0.71 c 11.52 b 9.31 b 0.82 c 11.33 ab PCN 7.73 e 0.70 d 11.09 c 8.41 c 0.78 d 10.67 c FRS 7.89 d 0.77 a 10.19 e 8.99 b 0.84 b 10.76 c FSN 8.71 a 0.78 a 11.13 c 9.87 a 0.86 a 11.43 a FCN 7.88 d 0.75 b 10.56 d 8.50 c 0.81 c 10.50 d 方差分析 Analysis of variance T ** ** ** ** ** ** C ns ** ** ns ** ** T×C ** ** ** ** ** **