DINGYu-chuan,JIAOXiao-yan,NIEDu,et al.EffectsofApplicationofNitrogenandMagnesiumFertilizerson YieldandQualityofLettuce[J].Northern Horticulture,2012,36(12):167-169.
尿素与镁肥配施对生菜产量和品质的影响
- Title:
- EffectsofApplicationofNitrogenandMagnesiumFertilizerson YieldandQualityofLettuce
- 文章编号:
- 1001-0009(2012)12-0167-03
- 分类号:
- S636.206+.2
- 文献标志码:
- A
- 摘要:
- 以“意大利108”生菜为试材，在田间试验条件下，研究了尿素与镁肥配施对生菜产量和品质的影响。结果表明：适量尿素与镁肥配合施用能明显增加生菜产量、维生素Ｃ、还原糖和可溶性固形物含量，降低硝酸盐含量。随着尿素用量增加，生菜硝酸盐含量、氮、磷、钾的吸收量明显增加，而维生素Ｃ和可溶性固形物含量、钙和镁吸收量下降。施用镁肥后生菜对硝酸盐含量、氮、磷、钾、钙和镁吸收量明显增加。氮、镁相互作用对生菜产量、可溶性固形物含量、氮、磷、钙、镁营养吸收量以及有土壤硝态氮含量均有明显的影响。
- Abstract:
- Taking‘Italy108’lettuceastestmaterial,theeffectsofthecombinedapplicationofnitrogen(N)andmagnesium(Mg)，theinfluencesofapplicationofureaandMgfertilizersonthebiomassyieldandqualityofLettucewereinvestigatedunderfieldconditions.TheresultsshowedthatthecombinedapplicationofproperureaandMgfertilizercansignificantincreaseyield，thecontentsofvitaminC，reducingsugarandsolublesolidandreducethenitratecontentoflettuce.Withtherateofureaincrease，thenitratecontentandtheuptakeofN，P，K，CaandMgbyweresignificantincreased，whereas，thecontentsofvitaminCandsolublesolid，andtheuptakeofCaandMgbylettuceweredeclined.ThenitratecontentandtheuptakeofN，P，K，CaandMgbylettuceweresignificantincreasedwhenMgfertilizerwasapplied.TheinteractionbetweenNandMghadsignificanteffectontheyield，solublesugarcontent，anduptakeofN，P，CaandMgbylettuce，andnitrate-Ncontentinsoilafterharvest.ThisstudyindicatedthatthecombinedapplicationofproperureaandMgfertilizercouldincreasetheyield，raisethecontentsofvitaminC，reducingsugarandsolublesolid，reducenitrateaccumulation，andimprovequalityoflettuce.
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备注/Memo
第一作者简介：丁玉川(1962-)，男，山西河津人，博士，研究员，现主要从事植物营养与施肥以及作物高产栽培技术等研究工作。
基金项目：山西省农业科学院博士基金资助项目(YBSJJ0810)；山西省留学回国人员科研资助项目(2010-116)。
收稿日期：2012-03-27