A Review Article: Use of fertilizers and their gradual release of mineral nutrients as a remedy to this problem have an adverse environmental impact.

Rasha Ahmed Hashim

Chemistry Department, College of Educationfor Pure Science/Ibn Al-Haitham , Universityof Baghdad

Jasim Mohammed Jasim

Ministry of Industry and Minerals – General Company for Mining Industries / Ibn Sina Factory

Sattar Ibrahim Ghulam

Ministry of Industry and Minerals – General Company for Mining Industries / Associte Factories of Ibn Sina F