Contribution of chicken manure on soil chemical and physical properties compared with urea + superphosphate fertilizers
By: Abbas, Muhammad Abd Allah; al-Amin, Sayf al-Din Muhammad; al-Amin, al-Amin Abd al-Majid. Journal of Science and Technology. Vol. 12, no. 4 (Dec. 2011), pp.9-16, 8 p.
Subjects: Manures; Metabolism; Poultry; Soil fertility