The relationship of particle size and nitrogen content to decomposition of wheat straw in soil
Year: 1967
Type: article
Abstract: Straw samples of different particle size and N content\nwere selected from three spring wheat (Triticum aestivum)\nvarieties; added to Walla Walla, Palouse, and Portneuf silt\nloam soils at 0.5 and 2.0% rates; and incubated. At the 0.5%\naddition rate, straw samples containing 0.2 to 0.7% N decomposed\nat the same rate. When 2.0% straw was added to\nsoil, the decomposition rates increased with increasing N\npercentage. The N- supplying capacity of the soil apparently\ninfluenced decomposition at the higher straw rates. After\nincubation, considerable nitrate was found in the soil with 0.5%\nstraw but little was found in the soil with 2.0% straw. Different\nparticle sizes of straw with the same N contents decomposed\nat approximately the same rate. Soil nitrate concentrations\nwere lower for each successively smaller straw particle size\nafter incubation.
Authors: J. H. Smith, C. L. Douglas
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: green
OpenAlex ID: W1905975471