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作 者:吕常厚 王双磊 曲日涛[1] 黄大方[1] LV Chang-hou(Yantai Agricultural Technology Extension Center,Yantai,Shandong 264000)
机构地区:[1]烟台市农业技术推广中心,山东烟台264000
出 处:《园艺与种苗》2020年第4期24-25,39,共3页Horticulture & Seed
基 金:烟台市科技计划项目(2015NC036)。
摘 要:[目的]确定烟台市苹果主栽品种红富士苹果叶片矿质养分含量标准范围,为烟台市酸化土壤果园合理施肥提供指导。[方法]借鉴刘孟军的四点五分段概率分级法,对于遵从正态分布的几种元素可直接得出叶片营养元素含量中的缺乏区、偏低区、正常区、偏高区、过高区5个数值范围,(-0.5246 S)^(+0.5246 S)可作为标准值中的正常值范围。对于不遵从正态分布的矿质元素,可参照产量水平较高类似果园的分析结果进行矫正。[结果]N、P、K、Ca、Mg、B等6种元素的取值符合正态分布,Cu、Fe、Mn、Zn近似X2分布,并根据结果制定出烟台市红富士苹果叶片营养元素含量标准范围。[结论]可为烟台本地果园基于叶片养分诊断施肥提供指导。[Objective]The aim was to determine the standard range of mineral nutrient content in leaves of red fuji apple,which could provide guidance for rational fertilization in the orchard of acidified soil in Yantai.[Method]With reference to Liu Mengjun’s 4.5-segment probability classification method,five numerical ranges of nutrient element content in leaves could be obtained directly for several elements following the normal distribution,including the lack area,the low area,the normal area,the high area and the too high area,which could be used as the normal value range in the standard value.For mineral elements that did not conform to normal distribution,it could be corrected by referring to the analysis results of similar orchards with high yield level.[Result]The results showed that the values of N,P,K,Ca,Mg,B fit the normal distribution.According to the research results,the standard range of nutrient elements content in leaves of red fuji apple in Yantai city was established.[Conclusion]The study could provide guidance for diagnosis and fertilization based on leaf nutrients in Yantai local orchard.
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