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2 有机培肥与轮耕方式对土壤全氮的影响

Table 2 Effects of organic manure and rotational tillage practices on total nitrogen (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 1.04 b 0.91 b 0.51 d 0.40 d 1.08 b 1.05 a 0.72 a 0.57 ab PSN 0.94 cd 0.83 c 0.58 c 0.49 c 1.06 c 0.99 c 0.67 b 0.55 b PCN 0.92 d 0.73 d 0.64 b 0.50 bc 1.05 c 0.92 d 0.59 d 0.58 ab FRS 1.08 a 0.87 bc 0.62 b 0.52 ab 1.10 a 1.02 b 0.64 c 0.59 a FSN 1.09 a 0.99 a 0.61 b 0.44 e 1.12 a 1.06 a 0.71 a 0.56 ab FCN 0.97 c 0.77 d 0.70 a 0.54 a 1.04 c 1.00 c 0.61 d 0.57 ab 方差分析 Analysis of variance T ** ** ** ** ** ** ** * C ** ** ** ** ** ** ** ns T×C ** ** ** ** ** ** ** ns