Is the Alkalinity within Agricultural Residues Soluble

被引：3

作者：

Butterly, Clayton R. ^{[1
]}

Baldock, Jeffrey A. ^{[2
]}

Xu, Jianming ^{[3
]}

Tang, Caixian ^{[1
]}

机构：

[1] La Trobe Univ, Dept Agr Sci, Melbourne, Vic 3086, Australia

[2] CSIRO Land & Water, PMB 2, Glen Osmond, SA 5064, Australia

[3] Zhejiang Univ, Coll Environm & Nat Resource Sci, Zhejiang Prov Key Lab Subtrop Soil & Plant Nutr, Hangzhou 310029, Zhejiang, Peoples R China

来源：

MOLECULAR ENVIRONMENTAL SOIL SCIENCE AT THE INTERFACES IN THE EARTH'S CRITICAL ZONE | 2010年

基金：

中国国家自然科学基金; 澳大利亚研究理事会;

关键词：

SOIL-PH; PLANT RESIDUES; ACID SOILS;

D O I：

10.1007/978-3-642-05297-2_91

中图分类号：

S15 [土壤学];

学科分类号：

090301 [土壤学];

摘要：

A laboratory experiment was carried out to determine the contribution of whole residues of canola, chickpea and wheat and their fractions (insoluble/soluble) to soil pH changes during a 14-day incubation. Residues were added (1% w/w) to Frankston and Shepparton soils of initial pH of 4.45 and 6.20, respectively. Increases in pH were greatest for chickpea, less for canola and the least for wheat. The experiment confirmed that the soluble fraction of residues is important for the alkalinity release within initial stages of decomposition and also the source of components responsible for pH decreases in subsequent incubation. However, the relative differences of whole residues and the fractions were influenced by the initial soil pH.

引用

页码：314 / 316

页数：3

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