水稻的氮素营养問題——Ⅰ.土壤氮素供应强度及其持續时間对水稻器官协調生长的影响
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:


THE NITROGEN NUTRITION OF RICE(1) THE INFLUENCE OF SOIL NITROGEN SUPPLYING STATUS ON THE HARMONIOUS GROWTH OF THE ORGANS OF RICE PLANT
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    两年来的丰产经验总结工作[1,2]指出,丰产的形成必然是水稻植株器官协调生长的结果,即在一定的生物学产量的基础上,利用农业栽培技术,使苗、株、穗、粒等器官能协调的生长,而且有适时地物质推移,也即既有一定的穗数,又能促使每穗粒数和粒重的增加以达到较高的经济产量。因而,水稻协调生长是人为要求下高产形成的基础;它的产生与土壤营养元素的供应状况有着密切的联系。但是,任何一种士壤,无论是肥土或瘦土总是不能完全与植株良好的生长发育要求相适应。

    Abstract:

    The present paper deals with the influence of the intensity and its persistence of nitrogen supply to the formation and development of the organs of rice plant and als with the resulting physiological feature of these influences. Pot culture experiments with paddy soils were conducted in open field. Organic manure and ammonium sulphate were applied at different stages of growth, i.e. tillering, internode elongating and panicle differentiating stage. The results are summarized as follows: 1. Experiments revealed that various organs of rice plant gave different responses to the status of nitrogen supply, and to the same organs, their responses of nitrogen varies at different stages of growth. At the tillering stage, a strongly intensified and less persistent supply of nitrogen, as in the case of ammonium sulphate, promoted the assimilation of dry matter in leaf blade, and consequently enlarged the leaf areas. Such effect on the leaf blade, however, terminated after the internode elongating stage, and more accumulation of dry matter was found in the stems. Top dressing of manures, pertinently after the internode elongating stage, gave a moderate but persistent supply of nitrogen at that time and resulted the formation of large and healthy ears. Under the experimental condition, such treatments have been proved favourable to the growth and yield of rice.

    参考文献
    相似文献
    引证文献
引用本文

刘芷宇,刘畹蘭.水稻的氮素营养問題——Ⅰ.土壤氮素供应强度及其持續时間对水稻器官协調生长的影响[J].土壤学报,1962,10(2):145-160. T. Y. LIU, W. L. LIU. THE NITROGEN NUTRITION OF RICE(1) THE INFLUENCE OF SOIL NITROGEN SUPPLYING STATUS ON THE HARMONIOUS GROWTH OF THE ORGANS OF RICE PLANT[J]. Acta Pedologica Sinica,1962,10(2):145-160.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2013-02-25
  • 出版日期: