DSpace

King Saud University Repository >
King Saud University >
COLLEGES >
Science Colleges >
College of Foods And Agricultural Science >
College of Foods And Agricultural Science >

Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/10064

Title: Loss of Nitrogen from Ammoniacal Fertilizers Incubated under Different Soil and Termperature Conditions.
Authors: A. S. Al-Mashhady
Issue Date: 1983
Publisher: Commun. in Soil Sci.
Abstract: Ammonium sulfate and urea were added to three soils of widely different composition. After incubation for 28 days at 20o C, from 13 to 89% of the N from ammonium sulfate, and 8 to 71% of the N as urea were not recovered, and at 40oC, 44 to 95% of the N as ammonium sulfate, and 33 to 81% of the N as urea was not recovered as either ammonium-N or nitrate-N. Significantly more N was lost from a soil containing 3% calcium carbonate at pH 8.4 as compared to the two other soils containing 25 and 35% calcium carbonate, which have pH's of 7.7 and 7.5, respectively. An incubation temperature of 40oC appeared quite unfavourable for nitrification.
URI: http://hdl.handle.net/123456789/10064
Appears in Collections:College of Foods And Agricultural Science

Files in This Item:

File Description SizeFormat
209.doc29.5 kBMicrosoft WordView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

DSpace Software Copyright © 2002-2007 MIT and Hewlett-Packard - Feedback