大田群体冬小麦氮收获指数变异特征研究

高志源,许吉利,刘硕,田汇,王朝辉

Variations of Winter Wheat Nitrogen Harvest Index in Field Wheat Population

GAO ZhiYuan,XU JiLi,LIU Shuo,TIAN Hui,WANG ZhaoHui

表1 3个试验点土壤基本理化性质

Table 1 Basic physical and chemical properties of soil at the three study sites

地点 Site 铵态氮 Ammonium (mg·kg-1) 硝态氮 Nitrate (mg·kg-1) pH 速效磷 Available P (mg·kg-1) 速效钾 Available K (mg·kg-1) 有机质 Organic matter (g·kg-1) 河南南阳 Nanyang, Henan 1.53±0.60 35.62±12.3 5.74±0.16 21.8±3.81 125.5±12.1 18.6±1.58 河南洛阳 Luoyang, Henan 0.65±0.64 27.93±14.6 7.84±0.08 8.47±4.79 276.6±52.6 24.7±2.85 陕西杨凌 Yangling, Shaanxi 0.39±0.22 26.65±6.0 8.06±0.04 9.20±2.38 145.5±19.6 13.0±1.52