本试验选用强筋小麦临优145和中筋小麦临优2018,在田间条件下研究追氮时期对其产量和品质的影响。结果表明:在施氮量一定时,拔节期追氮临优145和临优2018的产量最高;随着追氮时期的后延,两个小麦品种的蛋白质含量、湿面筋含量、干面筋含量呈上升趋势,粉质参数:不同筋型小麦变化不同,强筋小麦临优145逐渐变优,中筋小麦临优2018变化不同。所以在小麦生产中要根据小麦的生态特性,追施氮肥。 In this experiment, we selected strong gluten wheat Linyou 145 and medium gluten Linyou 2018 to study the effects of topdressing nitrogen on its yield and quality under field conditions. The results showed that the yield of topdressing nitrogen-fixing Linlin 145 and Linyou 2018 was the highest when the amount of nitrogen applied was constant. The protein content, wet gluten content and dry gluten content of two wheat cultivars Upward trend and silty quality parameters: The different gluten wheat changed differently, the strong gluten wheat Linyou 145 gradually became better, the middle gluten wheat Linyou 2018 changed differently. Therefore, wheat production in accordance with the ecological characteristics of wheat, topdressing nitrogen.