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This experiment was conducted in Quanjiao County. Using the indica-type three-line hybrid rice variety Jiuyouyuehesi as the material, five fertilization treatments were set up to study the effects of different ratios of slow-release and controlled-release nitrogen fertilizers on rice yield, nitrogen fertilizer utilization rate, and economic benefits. Slow-release and controlled-release nitrogen fertilizers could effectively coordinate the population structure of rice, improve nitrogen absorption efficiency, and reduce nitrogen loss. This was a fertilization mode suitable for the simplified and efficient production of rice in Quanjiao County.

, authors=Chaodong Xu, authorsList=Chaodong Xu, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1294746780135092618, articleId=1294746779648553352, tenantId=1146029695717560320, journalId=1293586367437176863, language=CN, title=缓控释氮肥对水稻产量和氮肥利用率的影响, columnId=1294746762053439651, journalTitle=农业技术与装备, columnName=农学与生物技术, runingTitle=null, highlight=null, articleAbstract=

本试验在安徽省全椒县展开，以籼型三系杂交水稻品种九优粤禾丝苗为材料，设置5个施肥处理，研究不同缓控释氮肥施用比例对水稻产量、氮肥利用率及经济效益的影响。结果表明：与常规施肥（T₁）相比，缓控释氮肥一次性施用处理（T₂—T₅）均能提高水稻产量、氮肥利用率及经济效益，其中以缓控释氮肥减氮10%处理（T₃）综合效果相对较好，产量达685.21 kg/667 m²，氮肥农学利用率为24.53 kg/kg，氮肥偏生产力为71.84 kg/kg，较T₁显著提高。综上可知，缓控释氮肥能有效协调水稻群体结构，提高氮素吸收效率，减少氮素损失，是适合全椒县水稻轻简化、高效化生产的一种施肥模式。

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徐朝东（1970-），男，安徽滁州人，农艺师，研究方向为农学。

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徐朝东（1970-），男，安徽滁州人，农艺师，研究方向为农学。

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