花后噴施不同濃度葉面肥對小麥產(chǎn)量和氮素吸收利用的影響

打開文本圖片集

中圖法分類號：S512.1 文獻標(biāo)識碼：A 文章編號：1000-2324（2025）02-0226-10

Abstract：TakingthecultivarLufeng128andJimai44asexperimentalmaterial，sixfoliarfertilizerconcentrationtreatments of 0，1，2，3，4， 5ml?L-1 （represented byCK，T1，T2，T3，T4 andT5，respectively） are setupintheexperimental stationof XinjiangLufeng AgriculturalScienceandTechnologyDevelopmentCo.，Ltd.inYingjisha County，KashgarCityfrom2022 to 2023.Theefects ofdifferentconcentrations offoliarfertilizer spraying after anthesis on wheatyieldand nitrogenuptake andutilizationare studied.Theresultsshow thatcompared withCK，spraying foliar fertilizers afteranthesis increasethedry materaccumulationatmaturityanditsdistributioningrainsbypromotingthedrymaterproductionafteranthesisand its contributionrate tograins，therebyenhancing thethousand-grain weightandyield.Meanwhile，through increasing the nitrogenuptakeafteranthesisand itscontributionratetograin nitrogen，thegrain nitrogenaccumulationandthenitrogen accumulationatmaturityareraised，therebyimproving thenitrogenuptake efficiencyand nitrogenuse eficiency（NUE）. Thesprayingeffectsoffoliarfertilizersvarywithdiferentconcentrations.UndertheT3andT4treatments，theincrementin wheat yield （12.1%-12.5% ， 12.7%-13.1% ）andNUE （12.12%-12.51% ， 12.74%-13.09% ）are the largest.However， excesive sprayingconcentrationsoffoliarfertilizercouldreduce theharvest index，grain weight，nitrogenharvestindex and nitrogenutilization efficiency，thereby reducing theyieldandNUE.The modelanalysisindicatethat aspraying concentration of 3.41-3.57mL?L-1 ofHeizefeng foliar fertilizer achieves the optimal yield and efciency improvement for wheat in production.Theconclusion providesareference for enriching the technologyof"spraying once for three protections" for wheat production and enhancing the yield and NUE of winter wheatin southern Xinjiang. Keywords：Winterwheat; foliar fertilizer;drymatter;nitrogen;yield

小麥?zhǔn)俏覈匾募Z食作物，提高小麥產(chǎn)量對于保障國家糧食安全和經(jīng)濟社會安全穩(wěn)定發(fā)展至關(guān)重要[12]。（剩余14195字）