朱攀攀,王彤,习建龙,凌丽俐,淳长品,江才伦,付行政,彭良志.重庆地区柑橘叶片的微量元素含量状况[J].湖南农业大学学报:自然科学版,2019,45(6):.
重庆地区柑橘叶片的微量元素含量状况
  
DOI:
中文关键词:  柑橘  叶片  微量元素  重庆
英文关键词:citrus  leaf  microelements  Chongqing
基金项目:国家重点研发计划课题(2017YFD0202002,2017YFD0202006);国家现代农业(柑橘)产业技术体系建设专项(CARS–26–01A);重庆市社会民生科技创新专项(cstc2016shmszx80004,cstc2017shms–xdny0352)
作者单位
朱攀攀,王彤,习建龙,凌丽俐,淳长品,江才伦,付行政,彭良志 1.西南大学柑桔研究所重庆 4007122.中国农业科学院柑桔研究所重庆 400712 
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中文摘要:
      在重庆14个柑橘主产县(区)采集871个果园的柑橘叶片样品,对5种必需微量营养元素(Fe、Mn、Zn、Cu和B)进行定量分析。结果表明:柑橘叶片的Fe、Mn、Zn、Cu和B的含量范围分别为18.00~362.10、5.54~219.09、1.00~83.95、0.55~40.28、7.19~435.49 mg/kg;叶片中 Fe、Mn、Zn、Cu和B含量不足的果园比例分别占8.73%、30.43%、91.50%、45.35%和27.67%,含量适宜的分别占53.73%、68.31%、8.50%、44.89%和65.56%,含量超标的分别占37.54%、1.26%、0.00%、9.76%和6.77%;叶片Mn和B含量适宜的果园所占比例较高,缺Zn果园多且普遍,叶片Fe超标的果园比例最大。大部分柑橘园微量元素丰缺并存,微量元素平衡状况较差,5种或4种微量元素含量均处于适宜水平的果园比例仅分别为0.69%和12.06%,生产上需重视微量元素的补充与平衡。
英文摘要:
      To evaluate microelement status in citrus leaves in Chongqing, 871 leaf samples were collected from 871 citrus orchards in 14 main citrus production counties (districts), and 5 essential microelements were quantitatively analyzed. The results showed that the content ranges of Fe, Mn, Zn, Cu and B in citrus leaves were 18.00-362.10 mg/kg, 5.54-219.09 mg/kg, 1.00-83.95 mg/kg, 0.55-40.28 mg/kg and 7.19-435.49 mg/kg, respectively. The proportions of leaf Fe, Mn, Zn, Cu and B in insufficient level (deficient level or low level) accounted for 8.73%, 30.43%, 91.50%, 45.35% and 27.67% ,respectively, and in optimum level accounted for 53.73%, 68.31%, 8.50%, 44.89% and 65.56% respectively, however in excess level (high or excessive) were 37.54%, 1.26%, 0.00%, 9.76%, and 6.77%, respectively. Among the five microelements, the percentage of leaf Mn and B in optimum levels was the highest, and that of leaf Zn was the lowest. The proportion of leaf Fe content exceeding optimum level was the largest, reaching 37.54%. In most of the citrus orchards, rich and deficient of some microelement coexist, indicating poor balance of leaf microelement status. The proportion of orchards with 5 or 4 microelements in optimum levels was only 0.69% and 12.06%, respectively. Therefore, in citrus production, attention should be paid to the supplement and balance of microelements.
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