水稻不同生育期施用氮肥對其產(chǎn)量及品質(zhì)的影響
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中圖分類號：S511.062文獻(xiàn)標(biāo)志碼：A
文章編號：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
水稻是我國最重要的糧食作物之一，在國內(nèi)，水稻不同生育期施氮肥對產(chǎn)量和品質(zhì)影響的研究較為廣泛。（剩余5934字）