Possibilities for improving nitrogen use from organic materials in agricultural cropping systems

Abstract

Nitrogen release from organic nutrient sources in soil is influenced by a range of factors such as soil temperature and moisture, and chemical composition of the organic material. Chemical composition can, to a certain degree, be controlled to increase the synchronization of nitrogen (N) release with plant N demand, whereas climatic factors cannot be controlled and so must be taken into account when planning management measures. In this paper, we discuss different ways to affect N release through manipulation of the chemical composition of fresh or pretreated plant materials and animal manures, timing of incorporation, and intentional distribution during application. We conclude by giving an overview of off-farm options that may need to be implemented to achieve improved use of N, especially in agricultural systems with surplus N

Published in

AMBIO: A Journal of the Human Environment
2005, Volume: 34, number: 4-5, pages: 288-295
Publisher: ROYAL SWEDISH ACAD SCIENCES

SLU Authors

• Dahlin, Sigrun

  • Department of Soil Sciences, Swedish University of Agricultural Sciences
    

• Kirchmann, Holger

  • Department of Soil Sciences, Swedish University of Agricultural Sciences
    

• Kätterer, Thomas

  • Department of Soil Sciences, Swedish University of Agricultural Sciences
    

• Gunnarsson, Sophie

  • Department of Soil Sciences, Swedish University of Agricultural Sciences
    

• Bergström, Lars

  • Department of Soil Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Agricultural Science


Publication identifier

DOI: https://doi.org/10.1639/0044-7447(2005)034[0288:PFINUO]2.0.CO;2

Permanent link to this page (URI)

https://res.slu.se/id/publ/4484