Abstract
The current work aimed to evaluate the effect of somemicronutrients (Fe, Mn, Zn and Cu) in mineral (sulphates) and chelated(-amino acids and -EDTA) forms added to soil in solely or in combinedtreatments with both organic composts (wheat residues and cattle wastes)and sulphur on grain and straw yields as well as their contents of suchmicronutrients for wheat-maize cropping sequence in a calcareous soil,with special reference to the effects of these treatments on available soilcontents of these micronutrients. To achieve this target two fieldexperiments were conducted on a calcareous soil located at the easternedge of Tamia district, El Fayoum Governorate, and cultivated withwinter wheat (Sakha 69) followed by summer maize (single cross 10hybrid) to verify the results obtained during growing season of 2003/2004under surface irrigation system.The data obtained reveal that the experimental soil is characterizedby secondary calcic formations in compacted phase, especially in theuppermost layer, and micronutrient deficient. The soil is classified at thefamily level as Typic Haplocalcids, clayey, mixed, hyperthermic. Also, itscapability was evaluated as marginally suitable (S
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