黄腐酸拌种对春小麦产量和水分利用效率的影响

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1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/11589373EffectofmixingseedwithfulvicacidonspringwheatyieldanditswateruseefficiencyArticleinYingyongshengtaixuebao=Thejournalofappliedecology/Zhongguoshengtaixuexuehui,Zho

2、ngguokexueyuanShenyangyingyongshengtaiyanjiusuozhuban·November2000Source:PubMedCITATIONSREADS4663authors,including:Feng-MinLiLanzhouUniversity298PUBLICATIONS6,052CITATIONSSEEPROFILESomeoftheauthorsofthispublicationarealsoworkingontheserelatedprojects:DrylandEcosystemSu

3、stainableStrategyViewprojectgrasslandrestorationViewprojectAllcontentfollowingthispagewasuploadedbyFeng-MinLion25January2016.Theuserhasrequestedenhancementofthedownloadedfile.应用生态学报2000年10月第11卷第5期CHINESEJOURNALOFAPPLIEDECOLOGY,Oct.2000,11(5)∶727～730＊黄腐酸拌种对春小麦产量和水分利用效率的

4、影响＊＊李捷李凤民刘洪升(兰州大学干旱农业生态国家重点实验室,兰州730000)【摘要】在大田研究了黄腐酸拌种对春小麦产量形成和水分利用效率的影响.实验设4个处理:对照(CK),播种前种子不处理;FA处理:播种前用FA拌种;WM处理:浇30mm底墒水,覆膜;处理WMFA:浇30mm底墒水,覆膜,播种前用FA拌种.2个覆膜处理均在播种后62d揭膜.同CK相比,FA拌种后,根系生长良好,吸收利用了更多的土壤水分,增加了穗重、单穗籽粒重和收获指数,产量和水分利用效率均显著提高.WM和WMFA在耗水量上相差无几,都充分利用了底墒,但WMFA

5、处理提高了水分利用效率,产量也较高.CK、FA、WM、-2WMFA4个处理的产量分别为917.7、1275.1、1269.4、1737.1kg·hm;水分利用效率分别为6.58、7.85、6.20、-2-19.05kg·hm·mm.关键词黄腐酸春小麦产量水分利用效率Effectofmixingseedwithfulvicacidonspringwheatyieldanditswateruseefficiency.LIJie,LIFengmin,LIUHongsheng(StateKeyLaboratoryofAridAgroecol

6、ogy,LanzhouUniversity,Lanzhou730000).-Chin.J.Appl.Ecol.,2000,11(5):727～730.Fourtreatmentswereinstalledtostudytheeffectofseedmixedwithfulvicacidonsringwheatyieldandwateruseef-ficiency:CK(withoutanytreatmentoffulvicacid);FA(seedsweremixedwithfulvicacidbeforesowing),WM(pr

7、e-sowingirrigationof30mmplusclearplasticfilmmulch),andWMFA(pre-sowingirrigationof30mmplusplasticfilmmulch,andseedsweremixedwithfulvicacidbeforesowing).TheplasticfilmmulchesinWMandWMFAtreatmentswereremovedaftersowingfor62days.ComparedtotreatmentCK,thespringwheatinFAtrea

8、tmentgrewmorerootsandabsorbedmorewaterfromsoil,andincreasedthespikeweightandgrainweightperspikeandharvestindex,whichr