A field experiment was conducted at Canwood, Saskatchewan to determine if annual applications of nitrogen (112 kg N ha–1) and sulphur (11 kg S ha–1) fertilizers to grass over 13 yr (1980 to 1992) could increase storage of total C (TC) and light fraction C (LFC) in a Dark Gray Chernozem soil. Hay was removed from the plots every year. The increase in mass of TC in the 0- to 30-cm soil depth from NS fertilizer was 3.88 Mg C ha–1. However, the increase in mass of LFC from NS was 9.50 Mg C ha–1, and most of the increase was found in the 0- to 5-cm soil depth.
Revised: October 27, 2005 |
Published: January 1, 1999
Citation
Nyborg M., S.S. Malhi, E.D. Solberg, and R.C. Izaurralde. 1999.Carbon storage and light fraction C in a grassland Dark Gray Chernozem soil as influenced by N and S fertilization.Canadian Journal of Soil Science 79.PNNL-SA-42205.