四川农业大学学报 ›› 1996, Vol. 14 ›› Issue (02): 211-214,218.doi: 10.16036/j.issn.1000-2650.1996.02.013

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西南红、黄壤粘粒组成及土壤保肥性能的研究

王昌全, 李叔南, 夏建国, 伍钧   

  1. 四川农业大学农学院, 雅安市 625014
  • 收稿日期:1995-06-30 出版日期:1996-06-30 发布日期:2017-03-07
  • 基金资助:
    国家自然科学基金课题

CLAY COMPOSITION AND FERTILIZER CONSERVATION PRDPERITITY OF RED SOIN AND YELOW SOILS IN THE SOUTHWEST

Wang Changquan, et al   

  1. College of Agriculture, SichuanAgricultural University/Yaan, Sichuan, China 625014
  • Received:1995-06-30 Online:1996-06-30 Published:2017-03-07

摘要: 本文研究了西南红、黄壤粘粒组成及土壤保肥力。结果表明红、黄壤粘粒矿物组成不相同,红壤的酸度及游离Fe2O3高于黄壤差异达极显著水平。当红壤粘土矿物为三水铝石时,不存在永久负电荷,胶体可带正电荷,正电荷来源于游离Fe2O3。阳离子交换量黄壤高于红壤,二者间差异达极显著。

关键词: 红壤[49BA], 黄壤[49BA], 粘粒, 保肥性, 永久电荷, 三水铝石, 阳离子交换量

Abstract: This paper deals with the clay Composition and fertilizer conservative properties of red soils and yellow soils in the southwest. The results showed that the acidity of red soils was higher then that of yellow soils, that there were no permanent negative charges when the clay mineral of red soil was gibbsite and that the difference of free Fe2O3 content and CEC between red soils and yellow soils was reached a significant level and yellow soils had more free Fe2O3 and higher CEC.

Key words: RED SOIL, YELLOW SOILS, CLAY, FERTILIZER CONSERVATIVE PROPERTY, PERMANEN CHARGE, GIBBSITE, CEC

中图分类号: 

  • S155.24