节水减氮对夏玉米干物质和氮素积累转运及产量的调控效应

王旭敏,雒文鹤,刘朋召,张琦,王瑞,李军

Regulation Effects of Water Saving and Nitrogen Reduction on Dry Matter and Nitrogen Accumulation, Transportation and Yield of Summer Maize

WANG XuMin,LUO WenHe,LIU PengZhao,ZHANG Qi,WANG Rui,LI Jun

表1 2018—2019年播前试验地0—20 cm土层基础理化性状

Table 1 Basic physicochemical properties of the experiment soil (0-20 cm) of 2018 and 2019

年份 Year 有机质 OM (g·kg-1) 全氮 Total N (g·kg-1) 硝态氮 Nitrate N (mg·kg-1) 全磷 Total P (g·kg-1) 速效磷 Available P (mg·kg-1) 全钾 Total K (g·kg-1) 速效钾 Available K (mg·kg-1) 2018 17.06 1.24 12.46 0.99 32.59 10.85 223.87 2019 16.95 1.20 14.53 1.04 36.76 9.96 215.19