Sigtryggsson, Christian
- Department of Energy and Technology, Swedish University of Agricultural Sciences
Abstract
Aiming at improving fertilizer management by assessing fertilizer dissolution, we compared the hygroscopicity of calcium ammonium nitrate (CAN), ammonium nitrate (NS 27-4), and nitrate compounds (laboratory grade). Dissolution of N fertilizers was also studied under simulated rain conditions. All compounds were highly hygroscopic, dissolving within 24 h at 90-99% relative humidity and 25 degrees C. Addition of 2 mm rain to fertilizer granules (3-4.5 mm diam.) was sufficient to dissolve 50% of the compounds. Dissolution rates by humidity or rain were not the limiting step for plant availability.
Published in
Agricultural & Environmental Letters
2020, volume: 5, number: 1, article number: e20016
Publisher: WILEY
SLU Authors
Hamnér, Karin
- Department of Soil and Environment, Swedish University of Agricultural Sciences
- Department of Soil and Environment, Swedish University of Agricultural Sciences
Kirchmann, Holger
- Department of Soil and Environment, Swedish University of Agricultural Sciences
- Department of Soil and Environment, Swedish University of Agricultural Sciences
UKÄ Subject classification
Agricultural Science
Soil Science
Publication identifier
- DOI: https://doi.org/10.1002/ael2.20016
Permanent link to this page (URI)
https://res.slu.se/id/publ/110656