Abstract
Abstract A fast and sensitive method to determine urease activity in soils is described. It involves extraction of NH4‐N with 1 N. KC1 : 0.01 N HC1 and measurement of NH4 concentration by electroconductivity using a steady state flow system across a membrane. Sampling was done directly from the extracts with an automatic sampler at 40 samples per hour. The detection limit for NH4‐N was below 0.05 ppm in the extract. Extracts could be stored at room temperature for 17 hours before measuring NH4. No post‐treatment hydrolysis of urea occured.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
