Khider, M.H. <br/><br/>
Determination of potassium extraction free energy of some soils in Egypt  [electronic resource]. 
 تقدير الطاقة الحرة لأستخلاص البوتاسيوم فى بعض الأراضى فى مصر. 

 - p.1237-1247. 
<br/><br/>Includes references. 
<br/><br/> Eight surface soil samples (0-30 cm) were selected from different sites of Egypt to determine the free energy of extracted K amounts. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture and energy.<br/>Soils--Egypt.<br/>Soils--Potassium content--Egypt.