研究表明,西农979与施氮水平呈显著正相关关系,同时,不同追氮时期对西农979的产量与品质也有着明显的影响,在小麦生育关键时期追氮产量明显高于一般时期追氮,分次追氮又略好于一次性追氮。综合分析,在底肥确定的条件下,每hm2用225kg尿素在越冬期和拔节期2个时期追施并在灌浆期进行叶面追氮为最佳的追氮模式。 The results showed that there was a significant positive correlation between Nongnong 979 and N application rate. Meanwhile, Nongnong 979 also had a significant effect on yield and quality under different N rates. Nitrogen production in the key period of wheat growth was significantly higher than that of normal period Nitrogen, sub-sub-channeled slightly better than one-time chasing nitrogen. Comprehensive analysis, under the conditions of the base fertilizer, hkg per hm2 with 225kg urea in winter and jointing two periods topdressing and grain filling at the top of the leaves for the best nitrogen recovery mode.