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时间:2020-04-21
《中小型西瓜不同生育期对氮磷钾的吸收分配规律研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、上海农业学报2014,30(3):62—65ActaAgriculturaeShanghai文章编号:1000-3924(2014)03.062—04中小型西瓜不同生育期对氮磷钾的吸收分配规律研究诸海焘,蔡树美,余廷园,林天杰,高善民。,范红伟,田吉林(上海市农业科学院生态环境保护研究所,上海市设施园艺技术重点实验室,农业部上海农业环境与耕地保育科学观测实验站,上海201403;上海市农业技术推广服务中心,上海201103)摘要:以中果型‘早佳8424’和小果型‘早春红玉’西瓜品种为试材,在春播设施栽培条件下,研究西瓜对主要矿质营养氮、磷、钾的吸收分配特性。结果表明:西
2、瓜在不同时期对氮磷钾的分配和吸收比例不同,西瓜植株对氮磷钾的分配在结果前主要用于叶的发育,其次是茎的生长,坐果后,逐渐转向用于果实的发育;西瓜对氮、磷、钾三要素的吸收,以钾最多,氮次之,磷最少,成熟期‘早佳8424’西瓜氮、磷、钾的吸收总量为24.21g/株,氮、磷、钾三者的吸收比例为1:0.26:1.84;‘早春红玉’西瓜氮、磷、钾的吸收总量为25.04g/株,氮、磷、钾三者的比例为1:0.29:1.62。关键词:西瓜;生育期;氮磷钾;养分吸收;养分分配中图分类号:$65;S606文献标识码:AStudyontheabsorptionanddistributionof
3、nitrogen,phosphorusandpotassiumofmiddleandsmallsizewatermelonindifferentgrowthstagesZHUHai-tao,CAIShu.mei’,YUTing.yuan,LINTian—jie,GAOShan.min,FANHong.wei。TIANJi.1in(Eco-environmentandPlantProtectionInstitute,ShanghaiAcademY0fAgriculturalScience,ShanghaiKeyLaboratoryofProtectedHorticultu
4、ralTechnology,ShanghaiScientificObservationandExperimentalStationforAgriculturalEnvironmentandLandConservation,Shanghai201403,China;ShanghaiAgro—TechnologyExtensionandServiceCenter,Shanghai201103,China)Abstract:Theabsorptionanddistributioncharacteristicsofmainmineralnutrientsofnitrogen,p
5、hosphorus,potassiumofwatermelonwerestudiedundertheconditionofspringsowingfacilitiescultivationusing‘Zaojia8424’and‘zaochunhongyu’watermelonvarietiesasmaterials.Theresultsshowedthattheabsorptionanddistributionratesofnitrogen,phosphorus,potassiumaredifferentindifferentgrowthstagesofwaterme
6、lon,distributionofN,P,KiSmainlyusedforthedevelopmentofleafbeforefruiting,thesecondiSforthegrowthofthestem,andturnstofruitdevelopmentgraduallyafterfruitsetting.AmongtheabsorptionamountofN,P,Kofwatermelon,Kwasthemost,thesecondwasN,the1eastwasP.ThetotalamountofN,P,Kabsorbedby‘Zaojia8424’inm
7、aturestagewere24.21g/plant,andtheN:P205:K20ratiowas1:0.26:1.84;ThetotalamountofN,P,Kabsorbedby‘zaochunhongyu’inmaturestagewere25.04g/plant,andtheN:P2O5:K2Oratiowas1:0.29:1.62.Keywords:Watermelon;Growthstage;NPK;Nutritionabsorption;Nutritiondistribution氮、磷、钾是西瓜生长发育必需的三要素,对
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