氮肥和硫肥对叶芥菜生长及营养品质的影响.pdf

园艺学报2005,32(6):1045～1050
ActaHorticulturaeSinica

氮肥和硫肥对叶芥菜生长及营养品质的影响
李娟朱祝军3钱琼秋
(浙江大学农业与生物技术学院园艺系,农业部园艺植物生长发育与生物技术重点开放实验室,杭州310029)

摘要:以叶芥菜‘雪里蕻’和‘包包青菜’为材料,研究4个氮肥水平(1013、100、200和300kg
·hm-2)和2个硫肥水平(0和50kg·hm-2)对植株生长和营养品质的影响。结果表明,随氮肥量增加,
两品种的株高、地上部鲜质量、产量、叶绿素、β-胡萝卜素、游离氨基酸、地上部氮含量、地上部硫含
量均显著提高,雪里蕻的硝酸盐含量也显著提高,两品种的干物质和可溶性总糖含量则降低。较低施氮量
(小于100kg·hm-2)对可溶性蛋白质含量有明显影响。在不施硫处理(供应KCl)中,氮肥对包包青菜

硝酸盐含量没有显著影响;而在施硫处理(供应K2SO4)中,增加氮肥量显著增加其硝酸盐含量。增施硫
肥,雪里蕻可溶性蛋白质和包包青菜硝酸盐均显著提高,两品种地上部硫含量显著提高,而对其它指标没
有明显影响。
关键词:氮;硫;叶芥菜;生长;品质
中图分类号:S63712文献标识码:A文章编号:05132353X(2005)0621045206

EffectsofNitrogenandSulphurApplicationontheGrowthandNutritional
QualityofLeafMustard

LiJuan,ZhuZhujun3,andQianQiongqiu
(KeyLaboratoryofHorticulturalPlantDevelopmentandBiotechnology,MinistryofAgriculture,DepartmentofHorticulture,Zhe2
jiangUniversity,Hangzhou310029,China)

Abstract:Effectsofnitrogenandsulphurtreatmentswithfourlevelsofnitrogen(1013,100,200and
300kg·hm-2)andtwolevelsofsulphur(0and50kg·hm-2)onthegrowthandnutritionalqualityintwo
cultivarsofleafmustard(Brassicajuncea,‘Xuelihong’and‘BaobaoQingcai’)werestudied.Theresults
showedthatincreasingnitrogenapplicationincreasedtheshootheight,shootfreshmass,yield,andthecon2
tentsofchlorophyll,β2carotene,freeaminoacids,totalNandSinshootsofbothcultivarsofleafmustardand
thenitratecontentin‘Xuelihong’,butdecreasedthedrymattercontentandthesolublesugarcontentinboth
cultivars.Thesolubleproteincontentintwocultivarsofleafmustardwassignificantlyincreasedwhenthelow
doseofnitrogen(<100kg·hm-2)wasapplied.Thenitratecontentin‘BaobaoQingcai’wasnotsignifi2
cantlyinfluencedbyincreasingappliednitrogenwhenKCl(non2sulphur)wasapplied,howeversignificantly

increasedwhenK2SO4(sulphur)wasapplied.Sulphurapplicationsignificantlypromotedthesolubleprotein
contentin‘Xuelihong’,thenitratecontentin‘BaobaoQingcai’andtheshootScontentinbothcultivarsof
leafmustard,butdidnotaffectothertestedindexesinleafmustard.
Keywords:Nitrogen;Sulphur;Leafmustard;Growth;Quality

氮、硫是植物生长必需的营养元素,参与光合作用、呼吸作用以及蛋白质和碳水化合物的代谢,