Subtropical Plant Science ›› 2003, Vol. 32 ›› Issue (03): 28-30.

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Diagnosis of leaf yellowing disease for Huanghua pear plants on red earth

ZHENG Hui-zhang1, HUANG Xin-zhong2, XIE Zhi-nan3, LI Jian4, XU Wen-bao3   

  1. 1. Fujian General Station of Agro-Environmental Protection and Rual Energy, Fuzhou 350003, Fujian China;
    2. Agricultural Bureau of Jianning County, Jianning 354500, Fujian China;
    3. Fujian Institute of Subtropical Botany, Xiamen 361006, Fujian China;
    4. Experimental Station of Fruit, Agricultural Department of Fujian Province, Fuzhou 350003, Fujian China
  • Received:2003-03-24 Online:2003-09-10 Published:2003-09-10

红壤黄花梨叶片黄化症的诊断

郑惠章1,黄新忠2,谢志南3,李健4,许文宝3   

  1. 1. 福建省农村环保能源总站, 福建 福州 350003;
    2. 福建省建宁县 农业局, 福建 建宁 354500;
    3. 福建省亚热带植物研究所, 福建 厦门 361006;
    4. 福建省农业厅 果树站, 福建 福州 350003
  • 作者简介:郑惠章(1966-),男,福建福清人,高级农艺师,大学本科,从事农业生态科技推广工作。

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Abstract: According to the leaf symptoms and the analysis of nutrient elements in leaf and soil, it was determined that the leaf yellowing of Huanghua pear plants in Jianning county of Fujian Province was attributed to Ca deficiency. The Ca level of Huanghua pear plants with yellowing leaves was lower than those of normal plants. It was suggested that Ca deficiency in plants was caused by the low contents of exchangeable Ca and low pH value in soil.

Key words: red earth, Huanghua pear, yellowing leaf, Ca deficiency

摘要： 通过对福建省建宁县黄花梨"黄化园"及"健园"叶片及土壤的营养诊断,探明了该县近年普遍出现的黄花梨植株叶片黄化现象系植株钙素缺乏所致。分析结果表明,"黄化园"叶片含钙量极显著低于"健园";果园土壤交换态钙含量低及土壤酸性强是引起植株钙素缺乏的主要原因。

关键词: 红壤, 黄花梨, 叶片黄化, 缺钙

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