Interchange between inorganic and organic nitrogen in soils

F. E. Broadbent

Hilgardia, 1966, vol. 37, issue 6

Abstract: Immobilization of fertilizer nitrogen and mineralization of soil organic nitrogen were measured in three soils receiving ammonium sulfate or calcium nitrate labelled with the N15 tracer. In the presence of added straw deficient in nitrogen the rate of nitrogen immobilization was strongly temperature dependent, whereas the total quantity of nitrogen eventually incorporated in the organic fraction was little affected by temperature. Nitrifying bacteria were able to compete effectively for ammonium with the heterotrophic population in all three soils. Little remineralization of tagged nitrogen occurred, suggesting progressive stabilization of immobilized nitrogen.

Keywords: Resource/Energy; Economics; and; Policy (search for similar items in EconPapers)
Date: 1966
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/381911/files/v37n06p165.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ags:hilgar:381911

Access Statistics for this article

More articles in Hilgardia from California Agricultural Experiment Station
Bibliographic data for series maintained by AgEcon Search ().