| Abstract: | In Poland, assessment of the content of micronutrients in soil is performed using 1 M hydrochloric acid (HCl) as an extractant. The objective of this study has been to check whether 1 M HCl can be replaced by Mehlich 3. In total, 330 soil samples were taken from fields cropped with winter wheat. Each sample was accompanied by a sample of wheat plant. The samples were from four groups of soils having various pH values—from acidic to alkaline soils. The suitability of the extractants was evaluated separately for each soil group based on the significance and power of correlation between soil microelements extracted by both methods, soil and plant microelements, and the bioaccumulation factor. The HCl extractant was a better predictor of the availability of microelements to wheat than Mehlich 3 in all tested soil groups. Mehlich 3 can be applied for extraction of boron (B) and, in some cases, copper (Cu) and manganese (Mn). |
