合成磷源在石灰性潮土中的有效性及氮肥形态对其的影响
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

* 河南省自然科学基金(96020311)


AVAILABILITY OF PHOSPHATES AND EFFECT OF DIFFERENT FORMS OF NITROGENOUS FERTIL IZER
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:

    采用盆栽试验的方法研究了几种人工合成磷源在两种质地土壤中的有效性及不同氮肥形态对它们有效性影响的机理。研究结果表明:几种合成磷酸盐在轻壤质和轻粘质潮土中的生物有效性的大小顺序分别为:磷酸二钙(DCP)>磷酸八钙(OCP)>磷酸铝(AlP)>磷酸铁(FeP)>氟磷灰石(FA)和DCP>AlP>OCP>FeP>FA。几种人工合成磷源在两种质地土壤中的有效性与土壤中相应形态无机磷的有效性相一致。它们在轻粘质潮土中的生物有效性明显受氮肥形态的影响。配施NH+4N和CO(NH2)2时,AlP和FA的有效性比配施NO3-N明显提高。配施NO3-N可以明显提高FeP的有效性。它们在配施不同氮肥形态下的生物有效性与不同氮肥形态处理下的根际pH变化密切相关。

    Abstract:

    Pot trials were conducted to study on availability of several forms of artificial mineral phosphate in light loam and light clay calcareous Chao soils,and mechanisms of effects of NH4+-N,CO(NH2)2,and NO3-N on their availability.The results showed that the order of the five phosphates in availability in light-loam and light-clayed calcareous Chao soils was as follows respectively: DCP> OCP> Al-P> Fe-P> FA and DCP> Al-P> OCP> Fe-P> FA,consistent with those of the corresponding forms of inorganic in soils.Their availability was markedly affected by forms of nitrogen applied.The availability of Al-P and FA coupled with NH4+-N and CO(NH2)2 in light-clayed soil was obviously higher than that with NO3-N,while application of NO3-N could significantly raised the availability of Fe-P.Their availability varies with nitrogenous form and pH in rhizosphere.

    参考文献
    相似文献
    引证文献
引用本文

安志装,介晓磊,李有田,刘世亮,魏义长,白由路,肖卫强.合成磷源在石灰性潮土中的有效性及氮肥形态对其的影响[J].土壤学报,2002,39(5):735-742. DOI:10.11766/trxb200010090517 An Zhi-zhuang, Jie Xiao-lei, Li You-tian, Liu Shi-liang, Wei Yi-chang, Bai You-lu, Xiao Wei-qiang. AVAILABILITY OF PHOSPHATES AND EFFECT OF DIFFERENT FORMS OF NITROGENOUS FERTIL IZER[J]. Acta Pedologica Sinica,2002,39(5):735-742.

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:2000-10-09
  • 最后修改日期:2001-03-20
  • 录用日期:
  • 在线发布日期: 2013-02-25
  • 出版日期: