氮肥和硫肥对叶芥菜生长及营养品质的影响

2005,32(6):10451050ActaHorticulturaeSinica:2005-03-07;:2005-04-28:(GZ154,156)3Authorforcorrespondence3(,,310029):,4(1013100200300kghm-2)2(050kghm-2),,-,,(100kghm-2)(KCl),;(K2SO4),,,,:;;;;:S63712:A:05132353X(2005)0621045206EffectsofNitrogenandSulphurApplicationontheGrowthandNutritionalQualityofLeafMustardLiJuan,ZhuZhujun3,andQianQiongqiu(KeyLaboratoryofHorticulturalPlantDevelopmentandBiotechnology,MinistryofAgriculture,DepartmentofHorticulture,Zhe2jiangUniversity,Hangzhou310029,China)Abstract:Effectsofnitrogenandsulphurtreatmentswithfourlevelsofnitrogen(1013,100,200and300kghm-2)andtwolevelsofsulphur(0and50kghm-2)onthegrowthandnutritionalqualityintwocultivarsofleafmustard(Brassicajuncea,XuelihongandBaobaoQingcai)werestudied.Theresultsshowedthatincreasingnitrogenapplicationincreasedtheshootheight,shootfreshmass,yield,andthecon2tentsofchlorophyll,2carotene,freeaminoacids,totalNandSinshootsofbothcultivarsofleafmustardandthenitratecontentinXuelihong,butdecreasedthedrymattercontentandthesolublesugarcontentinbothcultivars.Thesolubleproteincontentintwocultivarsofleafmustardwassignificantlyincreasedwhenthelowdoseofnitrogen(100kghm-2)wasapplied.ThenitratecontentinBaobaoQingcaiwasnotsignifi2cantlyinfluencedbyincreasingappliednitrogenwhenKCl(non2sulphur)wasapplied,howeversignificantlyincreasedwhenK2SO4(sulphur)wasapplied.SulphurapplicationsignificantlypromotedthesolubleproteincontentinXuelihong,thenitratecontentinBaobaoQingcaiandtheshootScontentinbothcultivarsofleafmustard,butdidnotaffectothertestedindexesinleafmustard.Keywords:Nitrogen;Sulphur;Leafmustard;Growth;Quality,,1,,,2,(Brassicajuncea),©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(N1013N100N200N300)2050kghm-2(S0S50),,8,4514m2,4,12,30cm30cm,,P2O560kghm-2,K2O150kghm-2,NH4H2PO4,1013kghm-2,1013kghm-2,40%,60%,K2SO4,(KCl),,5055,113SPAD2502;-Gilmore3,;4;G22505;6;7:015000g,H2SO4-H2O2,50mL,8:015000g,7mL(HNO3HClO4=52),,,80015h,180200,50mL,922111,,(P1Table1EffectofnitrogenandsulphurapplicationonthegrowthandyieldofleafmustardTreatmentShootheight(cm)XuelihongBaobaoQingcaiShootfreshmass(gplant-1)XuelihongBaobaoQingcaiDrymattercontent(%)XuelihongBaobaoQingcaiYield(thm-2)XuelihongBaobaoQingcaiN1013S02218410e2213313d11615032139d18418083191c131620169a101031121a101362188d161437146cN100S03119118d2915315c27114092119c30313049133c101021107b71622106b241128120c261964139cN200S04412211bc3915516ab639170112175b68318034113ab81440191cd51180168d5618610102b601783103abN300S04814215a3913512ab975108101115a726110145110ab81001117d51720153d861678199a6415412190abN1013S502110019e2212319d11816010100d18713048148c141050175a91340165a101540189d161654131cN100S503410119d3016218c35816028104c28519054143c91791121b71420127bc311882149c251414184cN200S504219218c3616418b62519083170b62315043124b91070199bc61000160cd551647144b551423184bN300S504713410ab4118217a919145132155a77618065193a71840166d51610146d8117311178a691055186a:0105,Note:Differentsmalllettersineachcolumnmeansignificantat0105level,thesamebelow.6401©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.),(P0105),(P0105)2121,,(P0105);200kghm-2,(P0105),1Fig.1Effectofnitrogenandsulphurapplicationonchlorophyllcontentinleafmustard213-2,(10200kghm-2),-(P0105)200kghm-2,-,-,-(P0105)2-Fig.2Effectofnitrogenandsulphurapplicationon2carotenecontentinleafmustard2142,,,,(P0105)100kghm-2,(P0105),,,(P0105)(P0105),,7401©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(P0105)2Table2EffectofnitrogenandsulphurapplicationonthenutritionalqualityofleafmustardTreat2mentTotalsolublesugar(mgg-1DM)XuelihongBaobaoQingcaiSolubleprotein(mgg-1FM)XuelihongBaobaoQingcaiFreeaminoacid(mgg-1FM)XuelihongBaobaoQingcaiNitratecontent(gg-1FM)XuelihongBaobaoQingcaiN1013S014719448169a14711726129a481172160d521584175b01580110c01300107c567181294159d47818843177dN100S010813413167abc6417616140cd651043158abc551984167ab01740112b01360115bc68511789183cd51614635111dN200S08619940141bc561427102cd671618133abc611579108ab01800111b01310105c92912783107ab56110243138dN300S06919224186c591877198cd621433169bc601679188ab01800104b01550113a106514993131a52513246188cdN1013S5012812512168ab1111726168b5717610120cd541323153ab01570104c01320107c90918583144ab51115629139bcdN100S508919712163bc8016231195c681777183abc561905159ab01730105b01420105abc78117573190bc643120132166bcN200S509717721194bc4714227117d7118110115ab6116712120ab01760110b01470103ab87015674180abc66511928109bN300S507918225175c3617710140d7517012144a671898138a11010107a01510107a102917396150a947110174181a2153,,(P0105),(y=010456x+151086,R2=01713)(P0105)(P0105),,200kghm-2,(P0105)3NSFig.3EffectofnitrogenandsulphurapplicationonthecontentsofNandSinshootofleafmustard3,,10,11,,300kghm-2,,8401©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.http://