Год выпуска: 2012 Автор: Haythum Salem Издательство: LAP Lambert Academic Publishing Страниц: 164 ISBN: 9783848404735
Описание
Ninety eight surface soil sample were collected 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. 1) The tested methods of extraction that could be more promising for assessing soil Fe availability could be ordered descendingly, according to their “r” values, with nutrients uptake by barley seedlings as follows: Mehlich III < AAAc-EDTA < DTPA < CAT < AB-DTPA. 2) All the tested procedures, (except BDW) showed significant correlations with Mn plant uptake at a very high significant levels, they could be arranged according to their “r” values, descending in the order: Mehlich III < CAT < AAAc EDTA < ABDTPA < DTPA < Coca-Cola. 3) The methods of soil Zn extraction that are significantly correlated with Zn plant uptake could be arranged according to their “r” coefficient descendingly in the order: CAT < W.H < ...
