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Article: Cation influence on sulfate leaching in allophanic soils.
- Article from:
- Australian Journal of Soil Research
- Article date:
- February 1, 2007
- Author:
CopyrightCOPYRIGHT 2007 CSIRO Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Introduction
Sulfur deficiencies in soils have been increasingly reported in many countries worldwide including New Zealand (Nguyen and Goh 1994; Schnug et al. 1995; Scherer 2001; Edmeades et al. 2005), especially since the reduction of air pollution enforced by 'clean air' legislation (Henderson 1996; Greenstone 2004). The use of non sulfur-containing nitrogen (N) or phosphorus (P) fertilisers, such as urea and di-ammonium phosphate, and the introduction of new high yielding and sulfur-demanding crop cultivars tend to intensify this problem. Sulfur deficiency in soils leads to yield losses and can influence crop quality, as well as increase plant susceptibility ...