Trace elements in soils and crops :  proceedings of a conference... 

 - London :  HMSO,  1971. 
 - vi, 217 p. 
 - Ministry of Agriculture, Fisheries and Food. Technical bulletin; 21 .
<br/><br/><label>ISBN: </label>0112409210 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plants--Composition.<br/>Soils--Trace element content.<br/>Plants, Effects of trace elements on.<br/>Soils--Analysis.<br/>Plant-soils relationship.