【摘要】 对河南省推广面积最大的优质强筋小麦品种高优 5 0 3和新乡市农科所新引进的优质强筋小麦品种陕2 2 5 -2 1系进行不同施氮量、不同施氮时期、不同氮肥种类的比较研究 ,结果表明 :河南省新乡地区中高水肥条件下 ,优质强筋小麦的品种施氮量应在最高籽粒产量和最高蛋白质产量之间 ,即每 hm2 施纯氮 1 6 5～ 2 1 0 kg;施氮重点在越冬、返青期和孕穗期之间 ;氮肥种类以尿素或氨态氮效果较好更多还原

【Abstract】 The relationship between different appling amount, different appling time,different kinds of nitrogen and quality of gluten wheat 503 and Shan 225-21 has been studied.The research results indicated that the appling amount of pure nitrogen was 165～210kg/hm 2,the best appling time was overwintering stage,turning green stage and boot stage respectively,the suitable kind of nitrogen was urea or amino-mitrogen.更多还原