曲靖中海拔红壤烟区烤烟锌含量分布状况及土壤影响因子分析

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1、曲靖中海拔红壤烟区烤烟锌含量分布状况及土壤影响因子分析方秀卢秀萍许自成鵬鵬麵河南农业大学烟草学院云南省烟草农业科学研宄院云南省烟草公司曲靖市公司摘要：为明确曲靖中海拔红壤烟区烟叶锌含量分布状况，利用田间实地调查及室内化验分析方法，研究了该区604个烟样的锌含量分布及与土壤有效锌、pH、有机质和速效磷之间的关系。结果表明：(1)曲靖中海拔红壤烟区烟叶锌含量较高，平均为(46.35±16.43)mg/kg,变幅为16.66'09.89mg/kg,处于我国烟叶锌含量适宜范围的样品占94.54%;不同产区间烟叶锌含量差异显著，且不同品种间烟叶锌含量表现为红花大金元〉云烟87>云

2、烟85〉云烟97〉K326;(2)烟叶锌与土壤有效锌极显著相关，在不同土壤有效锌组间烟叶锌含量差异达P<0.05的显著水平；(3)烟叶锌含量与土壤pH、有机质、速效磷含量均呈极显著负相关。因此土壤有效锌、P11、有机质、速效磷含量的高低均会不同程度地影响烟叶锌含量，进而影响烟叶品质，这也为合理调控烟叶锌含量、科学平衡施肥提供了参考。关键词：曲靖屮海拔红壤区;烤烟;锌含景;土壤;影响因素;作者简介：方秀，硕士研究生，研宂方向为烟草营养与质量评价。E-mail:fangxiul25@163.com。作者简介：许自成，教授，博士生导师，研究方向为烟叶质量评价与特色优质烟叶开发

3、。E-mail:zichengxu@126.com收稿日期：2017-02-27基金：国家烟草专卖局科技攻关项FI(110200801036)AnalysisofZincContentDistributioninFlue-curedTobaccoLeafandItsInfluencingFactorsinMid-altitudeAreaofRedEarthinQujingFANGXiuLUXiupingXUZichengXIEYanZHANGSenMUTongCollegeofTobaccoScience,HenanAgriculturalUniversity;Yunn

4、anAcademyofTobaccoAgriculturalSciences;QujingTobaccoCompanyofYunnanProvince;Abstract：Inordertoclearanddefinitethedistributionoftobaccozinccontentinmid-altituderedearthareainQujingcity，thispaperstudied604tobaccosamplesinthisareaabouttheirdistributionoftobaccozinccontentanditsrelationshipw

5、ithsoilavailablezinccontent,pH，organicmatterandavailablePcontentusingfieldinvestigationandlaboratoryanalysismethod.Theresultsshowedthat:(1)Thezinccontentintobaccoleavesinmid-altituderedearthareainQujingcitywashigh,averagelyrangingfrom16.66"109.89mg/kgwiththemeanof(46.35±16.43)mg/kg，andth

6、erewere94.54%ofthezinccontentintobaccoleavessuitwiththestandardinChina.Thereweresignificantlydifferencesinzinccontentofflue-curedtobaccoleavesproducedindifferentareas.TheorderofzinccontentinmaintobaccocultivarswereHongda>Yunyan87>Yunyan85>Yunyan97>K326.(2)Thezinccontentinflue-curedtobacc

7、oleaveswashighlycorrelatedwithsoilavailablezinccontent,thezinccontentintobaccoleaveswassignificantlydifferentamongdifferentgroupsattheP<0.05level.(3)Thezinccontentinflue-curedtobaccoleavesweregreatlyaffectedbysoilpH，organicmatterandavailablePcontent,andwerenegativelycorre