土壤肥力实质的研究——Ⅳ.水稻土
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:


STUDY ON THE ESSENCE OF SOIL FERTILITY——Ⅳ. PADDY SOIL
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:

    本文研究了三种水稻土(黄泥土、棕壤型、草甸型)的肥力性状。所得结果与旱田土壤比较有如下一些不同之点:(1)土壤腐殖质缩合作用较弱;(2)<10微米各级微团聚体的量减少;(3)微团聚体中C,N,P含量变化随粒径增大而缓慢地减少;(4)微团聚体对NH4和P的吸附和解吸附量较高;(5)土壤的贮水能力较高,渗水能力则较差。测验证明,在腐殖质含量较多的草甸土型水稻土和旱田土壤都是以<10微米的各级微团聚体为影响肥力的主要部分,而含腐殖质较少的棕壤型水稻土和旱田土壤都是以>10微米各级微团聚体为影响肥力的主要部分。

    Abstract:

    Thy fertility status of three paddy soils (permeable paddy soil,paddy soil and that on meadow soil) were studied.Compared with the results of upland milar origin the following differences were observed.1.Condensation of humus was weaker.2.Amount of different fractions of microaggregates<10 μm were dereased.3.Contents Of C,N,P,were moderately decreased from fine to coarse fractions of microaggregates.4.Adsorption and desorption of P and NH4+ by microaggregates were stronger.5.Water retention capacity was higher and water permeability was lower.It has been proved that the different fractions of microaggregates<10μm in both paddy soils and upland soil developed from organic soil contained more humus are the main parts influening fertility,while the different fractions of microaggregates>10 μm in both paddy soils and upland soils developed from brown earth containing less humus are the main parts influening fertility.

    参考文献
    相似文献
    引证文献
引用本文

邱凤琼,严昶昇,陈恩凤.土壤肥力实质的研究——Ⅳ.水稻土[J].土壤学报,1987,24(3):232-238. Qiu Fengqiong, Yan Changsheng, Chen Enfen. STUDY ON THE ESSENCE OF SOIL FERTILITY——Ⅳ. PADDY SOIL[J]. Acta Pedologica Sinica,1987,24(3):232-238.

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: