沈阳农业大学学报2025，Vol.56Issue(1)：9-17,9.DOI:10.3969/j.issn.1000-1700.2025.01.002
叶面氮肥不同施用量对玉米干物质积累分配与转运的影响
The Effect of Different Application Rates of Foliar Nitrogen Fertilizer on the Accumulation,Distribution,and Transport of Dry Matter in Maize
摘要
Abstract
[Objective]To investigate the scientific issues of different foliar nitrogen fertilizer application treatments on the accumulation,distribution,and transport of dry matter in maize.[Methods]Lihe 1 was selected as the research object.Non fertilization treatment(CK),conventional root fertilization treatment(CF),foliar nitrogen reduction treatment(LF1),foliar conventional nitrogen application treatment(LF2),and foliar nitrogen increase treatment(LF3)were set up.Random block design was used to study the accumulation,distribution,and transport of dry matter in maize.[Results]In 2021,LF1 had the highest single plant dry matter accumulation,which was 23.04%and 1.47%higher than CK and CF.In 2022,LF1 also had the highest single plant dry matter accumulation,which was 2.19%and 9.91%higher than LF2 and LF3,respectively.During the jointing stage,the distribution of dry matter is mainly dominated by leaves,while during the large bell mouth stage and tasseling and silk emergence stage,it is mainly dominated by stems.After the tasseling and silk emergence stage,the proportion of dry matter distribution in panicles and grains gradually increases,reaching its maximum at maturity.[Conclusion]The dry matter accumulation of grains under different foliar nitrogen fertilizer application treatments was significantly higher than that of CK,with the LF1 treatment having the highest proportion of dry matter accumulation distribution in grains.关键词
叶面氮肥/施用量/玉米/干物质Key words
foliar nitrogen fertilizer/application rates/maize/dry matter分类
农业科学引用本文复制引用
张旭婷,张海龙,张佳倩,刘亚楠,张德健,付增娟,薛春雷,张赛楠,孙峰成..叶面氮肥不同施用量对玉米干物质积累分配与转运的影响[J].沈阳农业大学学报,2025,56(1):9-17,9.基金项目
内蒙古自治区农牧业科技转移转化资金项目(2022TG12) （2022TG12）
内蒙古自然科学基金面上项目(2022MS03068) （2022MS03068）
内蒙古自治区青年创新基金项目(2024QNJJN07) （2024QNJJN07）
