德州地区拆村还田绿肥应用模式研究王玉霞，李洪杰，王富建，周晓琳，董艳芳，杜梦扬，王薇，李子双*(德州市农业科学研究院，山东德州253015)摘要［目的］研究德州地区绿肥应用模式对拆村还田的影响。［方法］以供试苜蓿品种为紫花苜蓿、春玉米品种为九圣禾2468开展试验，设置了玉米单作(T1)、苜蓿单作(T2)和玉米间作苜蓿(T3)3种种植模式。［结果］T1玉米产量为6．57t/hm2;T2苜蓿收获2茬，鲜重为1．05t/hm2;T3玉米产量为6．52t/hm2，苜蓿收获2茬，鲜重为1．01t/hm2，T3比T1玉米减产0．76%，减产不显著;T1玉米在生育期全氮、全磷、全钾表现整体优于T3;同时期各处理间土壤全氮、有效磷、速效钾、全盐、有机质和pH整体表现差异不显著;T3和T1相比，全氮、有效磷、速效钾、有机质含量均有不同程度的提升。［结论］该绿肥应用模式适用于拆村还田土地。关键词绿肥应用模式;拆村还田;产量;土壤肥力中图分类号S142文献标识码A文章编号0517－6611(2023)07－0050－03doi:10．3969/j．issn．0517－6611．2023．07．013开放科学(资源服务)标识码(OSID):StudyontheApplicationModeofGreenManureinDezhouAreaWANGYu-xia，LIHong-jie，WANGFu-jianetal(DezhouAcademyofAgriculturalSciences，Dezhou，Shandong253015)Abstract［Objective］TostudytheeffectoftheapplicationmodeofgreenmanureinDezhouareaonreturningthevillagetothefield．［Meth-od］TheexperimentwascarriedoutwithalfalfaasthetestedalfalfavarietyandJiushenghe2468asthespringmaizevariety．Theexperimentsetupthreeplantingpatterns:maizemonoculture(T1)，alfalfamonoculture(T2)andmaizeintercroppingwithalfalfa(T3)．［Ｒesult］TheyieldofT1maizewas6．57t/hm2;T2alfalfawasharvestedfor2crops，andthefreshweightwas1．05t/hm2;theyieldofT3maizewas6．52t/hm2，thefreshweightofalfalfawas1．01t/hm2afterharvestingtwocrops，andtheyieldofT3maizewas0．76%lowerthanthatofT1maize，whichwasnotsignificant;theperformanceoftotalnitrogen，totalphosphorusandtotalpotassiuminT1maizewasbetterthanthatinT3maize;therewasnosignificantdifferenceintotalnitrogen，availablephosphorus，availablepotassium，totalsalt，organicmatterandpHamongthetreat-mentsatthesametime．ComparedwithT1，totalnitrogen，availablephosphorus，availablepotassiumandorganicmattercontentincrea...
