Sammanfattning

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.

Publicerad i

Agricultural & Environmental Letters
2020, Volym: 5, nummer: 1, artikelnummer: e20016
Utgivare: WILEY

SLU författare

• Sigtryggsson, Christian

  • Institutionen för energi och teknik, Sveriges lantbruksuniversitet
    

• Hamnér, Karin

  • Institutionen för mark och miljö, Sveriges lantbruksuniversitet
    

• Kirchmann, Holger

  • Institutionen för mark och miljö, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Jordbruksvetenskap
Markvetenskap


Publikationens identifierare

DOI: https://doi.org/10.1002/ael2.20016

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/110656