Improving soil fertility in Africa:   papers presented at the third conference on soil fertility and fertilizer use in Africa, Addis Ababa, Ethiopia 3-7 Nov. 1970 
Food and Agriculture Organisation of the United Nations 
 - Rome  FAO  1971 
 - v,145p.  ill.  28cm. 
 - Soil bulletin; 14 .
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil ferilizer<br/>Africa, <br/>Congresses
<br/><br/><label>LC Class. No.: </label>IRA S604.83.A35F6