Stipp, S.R.C. <br/><br/>
Acumulacao de nutrientes pelo confrei (Symphytum sp)em condicoes de casa de vegetacao 
 Accumulation of nutrients by comfrey (Symphytum sp)under greenhouse conditions 

 - Piracicaba, SP (Brasil):   1987.  
 - 99 p. 
<br/><br/> 13 illus.; 18 tables; Bibliography p. 75-83 (60 ref.); Summaries (Eng, Por) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMFREY<br/>NUTRIENTE<br/>ABSORCAO