Nutrients availability in soils in relation to the different methods of extraction (Fe, Mn, Zn and Cu).

Abstract

Ninety eight surface soil sample were co.llected from different locations throughout the A.R.E. to assess the status of cationic micronutrients (Fe, Mn, Zn and Cu) in different soils of Egypt, also to define which extractant is the best for extracting specific nutrient as seven different extractants were used to extract Fe and Mn, while, eight extractants were used to extract Zn and Cu.