Influence of Long-term Localized Fertilization on Distribution of Aggregates and Phosphorus Forms in Fluvo-aquic Soil

HAN Yu-zhu; HUANG Jian-guo; ZHAO Jing-kun; LIANG Tao; BAO De-jun

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Influence of Long-term Localized Fertilization on Distribution of Aggregates and Phosphorus Forms in Fluvo-aquic Soil

更新时间：2024-11-07

- Influence of Long-term Localized Fertilization on Distribution of Aggregates and Phosphorus Forms in Fluvo-aquic Soil
- Vol. 25, Issue 6, (2011)
- 作者机构：
  
  1. 西南大学
  2. 重庆市农业技术推广总站
  3. 重庆市北碚区农业委员会
  4. 河南农业科学院土壤肥料研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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HAN Yu-zhu, HUANG Jian-guo, ZHAO Jing-kun, et al. Influence of Long-term Localized Fertilization on Distribution of Aggregates and Phosphorus Forms in Fluvo-aquic Soil[J]. 2011, 25(6).
DOI：

HAN Yu-zhu, HUANG Jian-guo, ZHAO Jing-kun, et al. Influence of Long-term Localized Fertilization on Distribution of Aggregates and Phosphorus Forms in Fluvo-aquic Soil[J]. 2011, 25(6). DOI：

摘要

以国家潮土肥力与肥料效益监测基地的长期施肥试验为基础

从土壤团聚体微域环境的角度研究潮土不同团聚体中磷的形态及含量对单施化肥和化肥配施有机肥的响应。结果表明:(1)潮土土壤团聚体主要分布在0.25～5mm范围

占土壤总重量的60.72%～77.99%;其次为>5mm团聚体;<0.25mm团聚体占的比例最低

仅为7.09%～13.68%。化肥处理0.25～5mm团聚体重量比例(60.72%)显著低于其余处理的重量比例(71.5%～77.99%)

而>5mm团聚体重量比例(25.82%)显著高于其余地块的重量比例(11.90%～19.98%);在长期施用有机肥的处理(MNPK和1.5MNPK)中

<0.25mm的团聚体重量比例(7.09%)相比不施肥的(13.68%)降低了6.37%

0.25～5mm团聚体比例却增高5.95%。(2)不同粒径团聚体

施肥可显著提高有效磷、有机磷和无机磷的含量

增加幅度从大到小均依次为1.5MNPK

MNPK

NPK;全磷中无机磷所占比例(88.25%～92.67%)要远远高于有机磷所占比例(7.33%～11.75%)。(3)潮土有机磷组分

MLOP含量最高

所占比重也最大(65....

Abstract

This article studied the influence of long-term localized fertilization on distribution of soil aggregates and phosphorus forms in fluvo-aquic soil.The results showed that:(1)The main weight body of fluvo-aquic soil aggregate was 0.25~5 mm(60.72%~77.99%)

followed by >5 mm

the lowest was <0.25 mm(7.09%~13.68%).Soil aggregate(0.25~5 mm)weight proportion of inorganic fertilizer was 60.72%

it was significantly lower than other treatments(71.5%~77.99%)

whereas >5 mm aggregate weight proportion was significantly ...

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