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1 有机培肥与轮耕方式对土壤有机碳的影响

Table 1 Effects of organic manure and rotational tillage practices on soil organic carbon (mg g-1)

处理 Treatment 2016 2017 0-10 cm 10-20 cm 20-30 cm 30-40 cm 0-10 cm 10-20 cm 20-30 cm 30-40 cm PRS 11.91 a 10.19 a 7.02 a 5.05 bc 12.60 b 12.36 a 8.47 a 5.18 b PSN 11.23 b 9.66 c 6.75 b 5.18 ab 12.50 b 12.24 b 6.31 d 6.17 a PCN 11.17 c 9.65 c 5.83 d 4.26 d 12.13 c 10.27 e 6.59 c 4.67 c FRS 11.03 b 9.94 b 6.20 c 4.39 d 12.55 b 12.00 c 6.54 c 4.89 c FSN 11.98 a 10.27 a 7.27 a 5.31 a 12.69 a 12.47 a 7.91 b 6.41 a FCN 10.99 c 9.79 bc 5.86 d 4.90 c 12.20 c 10.93 d 6.64 c 4.23 d 方差分析 Analysis of variance T ** ** ** ** ** ** ** ** C ** ** ns ns ** * * ** T×C ** ** ** ** ** ** ** **