• 中文核心期刊
  • CSCD来源期刊
  • 中国科技核心期刊
  • CA、CABI、ZR收录期刊

Message Board

Respected readers, authors and reviewers, you can add comments to this page on any questions about the contribution, review,        editing and publication of this journal. We will give you an answer as soon as possible. Thank you for your support!

Name
E-mail
Phone
Title
Content
Verification Code
Volume 24 Issue 3
Nov.  2011
Turn off MathJax
Article Contents
LI Juan, ZHANG Ming-qing, LIN Qiong, CHEN Zi-cong, YAN Ming-juan, KONG Qing-bo. Dynamic models simulating root length and growth characteristics of rice[J]. Fujian Journal of Agricultural Sciences, 2009, 24(3): 217-221.
Citation: LI Juan, ZHANG Ming-qing, LIN Qiong, CHEN Zi-cong, YAN Ming-juan, KONG Qing-bo. Dynamic models simulating root length and growth characteristics of rice[J]. Fujian Journal of Agricultural Sciences, 2009, 24(3): 217-221.

Dynamic models simulating root length and growth characteristics of rice

  • Received Date: 2009-03-03
  • Rev Recd Date: 2009-04-20
  • Publish Date: 2009-06-15
  • Based on the water and soil cultivation experiments on rice and the root growth model of water spinach and lettuce,a model to describe the cycle and characteristics of the root growth of rice was established.Statistical significance of the model for 7 rice varieties was obtained.For instance,the model could predict the root length growth constant,the maximum root growth rate and length,as well as the time for their appearances.The water and soil cultivation experiments showed that all varieties retained a large root system at later stage of growth;no significant difference on root growth characteristics among the late rice varieties,except Teyou 3101;the variation coefficient of the maximum root growth rate among different species was 7.6%;and the time for the maximum root growth was about two months after sowing,suggesting an advantage of topdressing at this time for fertilization efficiency.The soil cultivation experiment showed that the root growth constant could be increased 57.2% by application of a balanced fertilization of nitrogen,phosphorus and potassium,as compared with no fertilization.The maximum root growth rate and root length were increased 61.0% and 65.4%,respectively,showing the apparent effect of the timed fertilization in promoting growth and increasing length of the roots for rice.
  • loading
  • [1]
    MENGEL D B,BARBER S A.Development and distribution of the corn root system under field conditions[J].Agronomy Journal,1974,66:341-344.
    [2]
    冯广龙,罗培远.土壤水分与冬小麦根、冠功能均衡关系的模拟研究[J].生态学报,1999,19(1):96-103.
  • 加载中

Catalog

    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 Metrics

    Article views (2252) PDF downloads(637) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return