• 中国中文核心期刊
  • 中国科学引文数据库(CSCD)核心库来源期刊
  • 中国科技论文统计源期刊(CJCR)
  • 第二届国家期刊奖提名奖

Citation:

Annual Dynamic of Nutrient Elements in Gingko Seeds and Relations with Dropped Seed

  • Received Date: 1997-03-26
  • The contents of N、P、K、Ca、Mg、Zn、Fe、Mn in Ginkgo biloba seeds were determined and analyzed. The result shows that the annual dynamic in content of N、P、K、Ca、Mg presents a gradual decreasing trend from spring to autumn,but the decreasing range of every element is different in different growing stages of seeds. From the end of April to the middle of May and from the end of May to the beginning of June are two drastically decreasing stages in content of elements during the whole growing season. Annual contents variation of micronutrients (Zn、Fe、Mn) in seeds are various and irregular. The contents of nutrient elements between normal developmental seeds and dropped seeds are significantly different. The contents of elements in mature seeds are N:10.4 g/kg,P:1.3 g/kg,K:14.9 g/kg,Ca:1.3 g/kg,Mg:0.9 g/kg,Zn:27.6 mg/kg,Fe:10.0 mg/kg,Mn:3.2 mg/kg.The contents of N,K,Ca,Zn and Fe are higher in gingko seeds compared with those of other fruit trees.
  • 加载中
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article views(2971) PDF downloads(1124) Cited by()

Proportional views

Annual Dynamic of Nutrient Elements in Gingko Seeds and Relations with Dropped Seed

  • 1. College of Forest Resources and Environment of Beljing Forestry University Beijing 100083
  • 2. Research Institute of Gingko of Pi County, Jiangsu Province

Abstract: The contents of N、P、K、Ca、Mg、Zn、Fe、Mn in Ginkgo biloba seeds were determined and analyzed. The result shows that the annual dynamic in content of N、P、K、Ca、Mg presents a gradual decreasing trend from spring to autumn,but the decreasing range of every element is different in different growing stages of seeds. From the end of April to the middle of May and from the end of May to the beginning of June are two drastically decreasing stages in content of elements during the whole growing season. Annual contents variation of micronutrients (Zn、Fe、Mn) in seeds are various and irregular. The contents of nutrient elements between normal developmental seeds and dropped seeds are significantly different. The contents of elements in mature seeds are N:10.4 g/kg,P:1.3 g/kg,K:14.9 g/kg,Ca:1.3 g/kg,Mg:0.9 g/kg,Zn:27.6 mg/kg,Fe:10.0 mg/kg,Mn:3.2 mg/kg.The contents of N,K,Ca,Zn and Fe are higher in gingko seeds compared with those of other fruit trees.

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return