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1、農(nóng)業(yè)環(huán)境科學(xué)學(xué)報(bào)2010,29(12):2268—2273JournalofAgro—EnvironmentScience沼液不同施用量對(duì)水稻產(chǎn)量及稻米品質(zhì)的影響唐微1,伍鈞1,孫百曄1一,楊剛1,楊琴1(1.四川農(nóng)業(yè)大學(xué)資源環(huán)境學(xué)院,四川雅安625014;2.濰坊職業(yè)學(xué)院農(nóng)業(yè)工程系,山東濰坊261061)摘要:沼液是一種含有豐富氮磷鉀等營(yíng)養(yǎng)元素和鈣、銅、鐵、鋅、錳等中微量營(yíng)養(yǎng)元素的優(yōu)質(zhì)有機(jī)肥,將其應(yīng)用于農(nóng)業(yè)生產(chǎn)對(duì)提高作物產(chǎn)雖和農(nóng)產(chǎn)品品質(zhì)有重要的意義。將沼液的資源化利用與農(nóng)業(yè)生產(chǎn)相結(jié)合,在四川省邛崍市進(jìn)行種植試驗(yàn)。以水稻為供試材料,以清水
2、和當(dāng)?shù)爻R?guī)施fiE(化肥)為對(duì)照.設(shè)置不同的沼液施用量,研究了沼液農(nóng)用對(duì)稻谷產(chǎn)量及稻米營(yíng)養(yǎng)品質(zhì)的影響,為優(yōu)質(zhì)大米的生產(chǎn)以及沼液的合理利用和科學(xué)處理提供依據(jù)。結(jié)果表明。施用沼液增產(chǎn)效果明顯,沼液用量在11.25一18.75t·Inn。2時(shí)稻谷的產(chǎn)量較高,比清水對(duì)照和常規(guī)化肥處理分別提高12.21%-15.52%和6.78%一9.93%;同時(shí),沼液還可以提高稻米中蛋白質(zhì)的含量.強(qiáng)化稻米中Ire、Mn、Ca、Mg等礦質(zhì)營(yíng)養(yǎng),有助于提升稻米營(yíng)養(yǎng)品質(zhì)。關(guān)鍵詞:沼液;水稻;蛋白質(zhì);礦質(zhì)元素中圖分類號(hào):S18l文獻(xiàn)標(biāo)志碼:A文章編號(hào):1672—2043
3、(201o)12—2268塒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,F(xiàn)e,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