多元化种植模式下秸秆还田配合水氮管理对水稻产量形成与氮素吸收利用的影响

胡明明, 丁峰, 彭志芸, 向开宏, 李郁, 张宇杰, 杨志远, 孙永健, 马均

Effects of straw returning to field combined with water and N management on rice yield formation and N uptake and utilization under diversified cropping patterns

HU Ming-Ming, DING Feng, PENG Zhi-Yun, XIANG Kai-Hong, LI Yu, ZHANG Yu-Jie, YANG Zhi-Yuan, SUN Yong-Jian, MA Jun

表1 土壤基本理化性状

Table 1 Basic soil physical and chemical properties

年份 Year 前茬田 Preceding fields 全氮 Total N (g kg-1) 有机质 Organic matter (g kg-1) 碱解氮 Alkali hydrolyzed N (mg kg-1) 速效磷 Available P (mg kg-1) 速效钾 Available K (mg kg-1) 2018 油菜Rape 1.63 41.44 124.32 18.54 231.26 小麦Wheat 1.51 33.27 115.32 17.33 193.73 青菜Cabbage 1.32 31.78 107.30 16.89 224.89 2019 油菜Rape 1.85 44.78 136.10 20.74 239.75 小麦Wheat 1.66 35.56 118.32 18.78 197.78 青菜Cabbage 1.45 32.85 109.46 17.57 231.45