Weaver, John E. (John Ernest), 1884-1966 <br/><br/>
Root development of vegetable crops 

 - New York  McGraw-Hill Book  1926 
 - xiii, 291 p.  il., grafs. ; 24 cm. 
 - Mc Graw-Hill Publications in the Agricultural and biological sciences .
<br/><br/> Incluye bibliografía e índice 
<br/><br/><label>Subjects--Topical Terms: </label><br/>VEGETALES<br/>CLIMATOLOGIA<br/>AGRICULTURA<br/>SUELO<br/>CULTIVOS<br/>RAICES