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时间:2020-03-25
《沼液不同施用量对水稻产量及稻米品质的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、农业环境科学学报2010,29(12):2268—2273JournalofAgro—EnvironmentScience沼液不同施用量对水稻产量及稻米品质的影响唐微1,伍钧1,孙百晔1一,杨刚1,杨琴1(1.四川农业大学资源环境学院,四川雅安625014;2.潍坊职业学院农业工程系,山东潍坊261061)摘要:沼液是一种含有丰富氮磷钾等营养元素和钙、铜、铁、锌、锰等中微量营养元素的优质有机肥,将其应用于农业生产对提高作物产虽和农产品品质有重要的意义。将沼液的资源化利用与农业生产相结合,在四川省邛崃市进行种植试验。以水稻为供试材料,以清水
2、和当地常规施fiE(化肥)为对照.设置不同的沼液施用量,研究了沼液农用对稻谷产量及稻米营养品质的影响,为优质大米的生产以及沼液的合理利用和科学处理提供依据。结果表明。施用沼液增产效果明显,沼液用量在11.25一18.75t·Inn。2时稻谷的产量较高,比清水对照和常规化肥处理分别提高12.21%-15.52%和6.78%一9.93%;同时,沼液还可以提高稻米中蛋白质的含量.强化稻米中Ire、Mn、Ca、Mg等矿质营养,有助于提升稻米营养品质。关键词:沼液;水稻;蛋白质;矿质元素中图分类号:S18l文献标志码:A文章编号:1672—2043
3、(201o)12—2268埘EffectsofApplicationAmountsofBiogasSlurryonYieldandQualityofRiceTANGWeil,WUJun’,SUNBai-yel‘YANGGan91,YANGQinl(1.CoilegeofResourcesandEnvironment,SiehuanAgriculturalUniversity,Ya’an625014,China;2.DepartmentofA—culturalEngineering,WeifangVocationalCollege,Weif
4、ang261061,China)Abstract:BiogasispromotedwidelyinChinabotha8ameansoforganicwastereductionandarenewableenergy.Biogasslurry,residuesofanaerobicdigestioninbiogasplants,increaseswithexpansionofbiogasplantsanditsappmpfiateuseswillbecrucial.Itcontainsrichmacro—andmicro—nutrient
5、elements,suchasN,P,K,Ca,Cu,Fe,Zn,Mn,etcandisusuallyusedasfertilizers.Previousstudieshaveproveditsel-fectivenessinenhancingcropyieldbutitseffectsoncmpqualitya托unknown.Inthepresentstudy.theeffectsofdifferentapplicationuatesofbiogasslurryonbothgrainyieldandqualityofpaddyrice
6、wereinvestigatedbyfieldexperimentswithapplicationofwaterandchemicalfertilizersascontrols.Chemicalfertilizerswereappliedatthetilleringstagefollowingthelocaltradition.Tenapplicationratesofbiogasslurry.i.e⋯375,7.50,11.25,15.00,18.75,22.50,26.25,30.00,37.50and45.00t-hm-2,were
7、designed.Foreachrate50%,40%and20%Wasap-pliedattillering,jointingandfuU-headingstage,respectively.Resultsrevealedthatapplicationofbiogasslurryenhancedsignificantlyricegrainyieldandthehighestyieldwasobtainedattherateof11.25—18.75I.hm-2,12.2%to15.5%higherthanthecontrolofwate
8、rapplicationand6.8%to9.9%higherthanthecontrolofchemicalfertilizerapplication.Applicationofbiogas
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