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1、HansJournalofAgriculturalSciences農(nóng)業(yè)科學(xué),2017,7(3),267-272PublishedOnlineJune2017inHans.http://www.hanspub.org/journal/hjashttps://doi.org/10.12677/hjas.2017.73035EffectsofReturned-StrawonSoilMicroorganismAmountandSoilEnzymeActivityLiangDong1,2,ShenzhongTian1,3,Yu
2、fengZhang1,3,HonghaiGuo1,2*,ZhaohuiLiu2,ZhengMa1,3,WenfanBian2,3,RuiqinLi1,JiafaLuo21InstituteofAgriculturalResourcesandEnvironment,ShandongAcademyofAgriculturalScience,JinanShandong2KeyLaboratoryofAgro-EnvironmentinHuanghuaihaiPlainMinistryofAgricultureShandon
3、gProvincial,JinanShandong3ScientificObservingandExperimentalStationofArableLandConservation,MinistryofAgriculture,JinanShandongthrdthReceived:Jun.12,2017;accepted:Jun.23,2017;published:Jun.29,2017AbstractInordertoinspecteffectsofreturned-strawonsoilmicroorganis
4、mamountandsoilenzymeactiv-ity,weinvestigatedthesesoilbiologicalindexesbyfieldlong-termlocatedexperiment.Theresultsshowedthatreturned-strawcouldincreaseamountofsoilbacteria,fungiandactinomycetesre-spectivelyby2.2×108-3.1×108/g,0.5×106-3.5×106/g,1.3×107-1.9×107/g
5、.Anditcouldin-creasetheactivityofsoildehydrogenase,soilurease,soilacidphosphataserespectivelyby3.82%-12.98%,36.0%-80.0%,12.99%-37.80%.Butexcessivereturned-strawamountwasnotbenefitforfarmlandproductivity,andthebestreturned-strawamountwasnomorethan100%.KeywordsRe
6、turned-Straw,SoilMicroorganismAmount,SoilEnzymeActivity秸稈還田對土壤微生物數(shù)量及土壤酶活性的影響1,21,31,31,2*21,32,312董亮,田慎重,張玉鳳,郭洪海,劉兆輝,馬征,邊文范,李瑞琴,羅加法1山東省農(nóng)業(yè)科學(xué)院農(nóng)業(yè)資源與環(huán)境研究所,山東濟南*通訊作者。文章引用:董亮,田慎重,張玉鳳,郭洪海,劉兆輝,馬征,邊文范,李瑞琴,羅加法.秸稈還田對土壤微生物數(shù)量及土壤酶活性的影響[J].農(nóng)業(yè)科學(xué),2017,7(3):267-272.https://doi.o
7、rg/10.12677/hjas.2017.73035董亮等2農(nóng)業(yè)部黃淮海平原農(nóng)業(yè)環(huán)境重點實驗室,山東濟南3山東省植物營養(yǎng)與肥料重點實驗室,山東濟南收稿日期:2017年6月12日;錄用日期:2017年6月23日;發(fā)布日期:2017年6月29日摘要為探明秸稈還田后小麥玉米輪作系統(tǒng)中土壤微生物量及土壤酶活性的變化情況,利用田間長期定位試驗,研究了秸稈還田對小麥-玉米輪作體系中土壤微生物數(shù)量及土壤酶活性的影響。結(jié)果表明:秸稈還田可以增加土壤中細菌、真菌及放線菌數(shù)量。50%秸稈還田、100%秸稈還田、150%秸稈還田處理的細
8、菌、真菌、放線菌增幅分別為2.2×108~3.1×108、0.5×106~3.5×106、1.3×107~1.9×107個/g。秸稈還田能增加土壤酶活性,土壤脫氫酶、脲酶、酸性磷酸酶活性分別增加3.82%~12.98%、36.0%~80.0%、12.99%~37.80%。但過量秸稈還田不利于農(nóng)田微生物,以不超過100%全量還田為宜。關(guān)鍵詞秸稈還