控释肥与尿素配合施用对太湖流域 麦季土壤 N2O 排放的影响
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中图分类号：S154.1;S512.11 文献标志码：A 文章编号：1672-2043（2025）10-2698-11 doi：10.11654/jaes.2024-1096
Abstract：Thisstudyconductedfeldinsituoservatialexperimentsusingclosedstaticchamberstoinvestigatetheefectsofifet application rates of controlled-release fertilizer（O，200， 270kg⋅hm-2 ）and their co-application with urea at diferent ratios（urea to controlled-release fertilizer ratios of 3：7 and 1.5：8.5 ）on N2O emissions，soil physicochemical factors，and wheat yield in the winter wheat cropingsystemoftheTaihuLakebasin.Theobjectivewas toidentifytheoptimalnitrogenfertilizerapplicationmeasuresforN 20 mitigationandyieldenhancementinthewinterwheatcroppingsystemoftheTaihuLakebasin.Theresultsshowedthatundersole applicationtratsofeadtrolsertls，lss，Osoityeldatielddtrw biomass all increased with the increment of nitrogen application.At the same nitrogen application rate （ 200kg⋅hm-2 and 270kg⋅hm-2 ）’ compared with urea treatment，controlled-release fertilizer significantly reduced soil N2O emission by 21.4% and 86.1% in the growing season of wheat，and increasedwheatyield by 21.6% and 23.9% ，whichin turn reduced N2O emission perunit of yield.Undercoapplication treatments（urea to controlled-release fertilizer ratios of 3：7 and 1.5： 8.5），soil N2O emissions and N2O emissions per unit yield duringthewheatgrowingseasondecreasedwiththeincreasedproportionofcontroled-releasefertlizers，hilewheatyieldandstraw biomassicreadompaedteatreant，dintreamntsoftrolldesefertlinduaducedsoilNOo by 16.8% and 29.0% during the growing season，and increased wheat yield by 18.4% and 19.8% ， which in turn reduced N2O emissions per unitofyield.TelowestNOemissosperuiyieldwerebseedenureaadcotrolldeleasefertlizesweropdatatio f1.5：8.5.SoilOisfuesungteatgroingasoesantlposiieloeaedisiltmpeaed Nconcentrationdtsigifiantlyorelatdwithsilater-fildorespace.TrefreosideringthOisssadat yield，an application rate of 200kg⋅hm-2 ，with urea and controlled-release fertilizers co-applied at a ratio of 1.5：8.5 ，is recommended as an optimalapplicationstrategyforcontrolled-releasefertilizers inthe winterwheat cropping systemof theTaihuLakebasin.
Keywords：controlled-release fertilizer;co-application; N2O emission; yield; wheat
在全球气候变暖的严峻背景下，人类社会面临着前所未有的挑战，迫切需要采取有效措施减缓温室气体排放，以应对气候变化带来的广泛影响。（剩余21734字）
