摘要
为探明永平县漾濞泡核桃(Juglans sigillata cv.'Yangbidapao')丰产栽培施肥需求,以永平县7个乡镇19个主产村(组)76个核桃园叶片为试验材料,测定叶片矿质元素[氮(N)、磷(P)、钾(K)、钙(Ca)、镁(Mg)、铁(Fe)、锰(Mn)、铜(Cu)、锌(Zn)和硼(B)]含量,采用适宜值偏差百分数(DOP)法和营养不平衡指数(NII)进行营养诊断,确定叶片矿质元素适宜含量。结果表明,核桃园叶片矿质元素含量差异明显,丰产园和低产园叶片矿质元素平均含量均表现为N>Ca>K>Mg>P>Mn>Fe>B>Zn>Cu。大量元素含量较稳定,微量元素含量随外界因素变化波动较大。叶片不同矿质元素间存在协同或拮抗作用,以协同作用为主;各矿质元素适宜含量分别为>23.56~26.82 g/kg(N)、>1.56~1.77 g/kg(P)、>10.33~12.74 g/kg(K)、>20.93~22.15 g/kg(Ca)、>4.13~5.32 g/kg(Mg)、>152.05~204.80 mg/kg(Fe)、>422.80~777.79 mg/kg(Mn)、>6.84~10.67 mg/kg(Cu)、>12.44~19.38 mg/kg(Zn)和>28.56~38.55 mg/kg(B)。DOP分析结果表明,叶片中缺乏B和K元素,Zn、Mg、Cu、P和N元素均偏低,Ca和Fe元素均偏高,Mn元素过高,核桃植株需肥顺序为B>K>Zn>Mg>Cu>P>N>Ca>Fe>Mn。
In order to determine fertilization requirements for high-yield cultivation of Juglans sigillata cv.'Yangbidapao'in Yongping county,taking leaves from 76 walnut orchards across 19 primary production villages(groups)in 7 townships of Yongping county as experimental materials,leaf mineral element contents[nitrogen(N),phosphorus(P),potassium(K),calcium(Ca),magnesium(Mg),iron(Fe),manganese(Mn),copper(Cu),zinc(Zn)and boron(B)]were determined.Deviation from optimum percentage(DOP)method and nutrient imbalance index(NII)were adopted for nutrition diagnosis to determine suitable contents of leaf mineral elements.Results showed that there were significant differences in leaf mineral element contents in walnut orchards,with average contents of leaf mineral elements in both high-yield and low-yield orchards showing N>Ca>K>Mg>P>Mn>Fe>B>Zn>Cu.Contents of macroelements were relatively stable,and contents of trace elements were greatly affected by external factors.There were synergistic or antagonistic interations among different leaf mineral elements,with synergistic interations being predominant.Suitable contents of mineral elements were>23.56-26.82 g/kg(N),>1.56-1.77 g/kg(P),>10.33-12.74 g/kg(K),>20.93-22.15 g/kg(Ca),>4.13-5.32 g/kg(Mg),>152.05-204.80 mg/kg(Fe),>422.80-777.79 mg/kg(Mn),>6.84-10.67 mg/kg(Cu),>12.44-19.38 mg/kg(Zn)and>28.56-38.55 mg/kg(B).Results of DOP analysis showed that B and K were deficient in leaves,Zn,Mg,Cu,P and N were relatively low,Ca and Fe were relatively high,and Mn was excessively high.Order of walnut fertilizer requirements was B>K>Zn>Mg>Cu>P>N>Ca>Fe>Mn.
作者
邹伟烈
苏倩
罗冯洁
李郭伟
和丽萍
Zou Weilie;Su Qian;Luo Fengjie;Li Guowei;He Liping(Yunnan Academy of Forestry and Grassland,Kunming,Yunnan 650201,China;Gaoligong Mountain Forest Ecosystem Observation and Research Station of Yunnan Province,Baoshan,Yunnan 678000,China;Forestry and Grassland Bureau of Yongping,Dali,Yunnan 672600,China)
出处
《广西林业科学》
2025年第6期684-689,共6页
Guangxi Forestry Science
基金
云南省退化森林生态修复创新团队(202505AS350020)
高黎贡山森林生态系统云南省野外科学观测研究站建设项目(202205AM070006)。
关键词
叶片矿质元素
适宜值偏差百分数法
营养诊断
永平县
漾濞泡核桃
leaf mineral element
deviation from optimum percentage method
nutrition diagnosis
Yongping county
Juglans sigillata cv.'Yangbidapao'
