水稻不同生育期施用氮肥对其产量及品质的影响

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中图分类号：S511.062文献标志码：A

文章编号：1673-6737（2025）04-0013-05

Effect of Nitrogen Fertilizer Application at Different Fertility Stages on Rice Yield and Quality

LI Ming-jun ⋅1 ，WUYang¹，GAO Heng-jie¹，LI Ya-jing¹，ZHAO Feil*，LIUJian 11 ，NIEFei 2 （1CollegeofAgronomyandResources&Environment，TianjinAgriculturalUniversity，Tianjin3Oo392，China; 2Tianjin High-quality Xiaozhan Rice Development Co.，Ltd.， Tianjin 3OO38，China）

Abstract：ThemainpromotedvarietiesinTianjin，Jinyugeng-22，Jinyuan-89andJinchuan-1，wereusedastestmaterials， andfourtreatmentsweresetup，includingN1（nonitrogenfertilizerattileringstage），N2（nonitrogenfertilizeratpregnancy spikestage），N3（nonitrogenfertilieatfillngstage）andN4（nitrogenferilizerappiedattileringstage，pregnancyspike stageandfilingstage）.Samplesweretakenatmaturitytoinvestigateyieldandyieldcomponents，andtodetermine appearanceandnutritionalquality.TheresultsshowedthattheaplicationofNferilizeratthetileringstagecould increasetheefectivenumberofspikesoftwovarieties，Jinyugeng-22andJinchuan-1，andtheapplicationofNfertilizer atthegroutingstagecould increasethethousand-grainweightofrice.Therewerenosignificantdiferencesintheyields ofeachvarietyamongthe fourtreatments，sugestingthatreducingtheapplicationoffertilizersatcertainperiodscasave costsandpreventtheriskofexcessveinputsoffertlizerstotheagro-ecologicalenvironment.Intermsofquality，the applicatinofnitrogenfertizerattheperiodof pregnancyandirigationcanimprovetheappearance quaityofricetoa certain extent.

KeyWords：Rice;Nitrogen fertilizer;Yield;Quality

水稻是我国最重要的粮食作物之一，在国内，水稻不同生育期施氮肥对产量和品质影响的研究较为广泛。（剩余5934字）