Soil and plant testing as a basis of fertilizer recommendations / 
by A. Cottenie ; Soil Resources, Management and Conservation Service, Land and Water DevelopmentDivision, Food and Agriculture Organization, United Nations 
 - Rome :  Food and Agriculture Organization,  1980 
 - vi, 113 p. :  tables ;  28 cm. 
 - FAO soils bulletin ;  38/2 .
<br/><br/>Includes bibliography: p. 55-58 
<br/><br/><label>ISBN: </label>9251009562 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizers<br/>Soil amendments<br/>Soil fertilizers<br/>Agricultural chemicals<br/>Soil conditioners
<br/><br/><label>Dewey Class. No.: </label>631