Effect of enhancing urea-humic acid mixture with refined acid sulphate soil

• Main Authors: Mohd Yusuff, Mohd Taufik, Ahmed, Osumanu Haruna, Nik Ab. Majid, Nik Muhamad
• Format: Article
• Language: English
• Published: Science Publications 2009
• Online Access: http://psasir.upm.edu.my/id/eprint/14235/1/ajassp.2009.1892.1896.pdf; http://psasir.upm.edu.my/id/eprint/14235/; http://www.thescipub.com/abstract/?doi=ajassp.2009.1892.1896

Problem statement: Acid Sulphate Soil (ASS) is a problem soil partly because of its high acidity. This low pH could be exploited to reduce ammonia loss from urea by reducing soil microsite pH. The use Humic Acid (HA) to control ammonia loss from urea has been reported but the cost of this material i...