Mohammed Abdulrahim Dawood Omar <br/><br/>
Forms and distribution of some nutrients in soils under organic farming condition /  
 صور وتوزيع بعض المغذيات فى الأراضى تحت ظروف الزراعة العضوية 
Mohammed Abdulrahim Dawood Omar ; Supervised Reda Ragab Shahin , Hassan A. Khater 
 - Cairo :   Mohammed Abdulrahim Dawood Omar ,   2010 
 - 297P. :   charts ;   25cm 
<br/><br/>Thesis (Ph.D.) - Cairo University - Faculty of Agriculture - Department of Soil Science 
<br/><br/> Last two decades showed a high conversion to organic farming in Egypt . In this study we investigated the effect of long term organic agriculture on some soil chemical properties . Different sources of OM (Sicum compost (SEC), Faium compost (FAC) ,animal manure compost (AMC),crop manure compost (CMC),and town refluse compost (TRC) were incubated under different soil types (alluvial, calcareous and sandy soils) to investigate their effect on soil KC1- NH⁺₄, KC1 - NO⁻₃, O1sen - P, dissolved organic matter, pH,EC, and DTPA -(Na⁺,Ca++,Mg++,Fe,Cu,Mn, and Zn) 
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<br/><br/><label>Subjects--Index Terms: </label>Batch  Column Organic farming