Potential productivity of field crops under different environments  : symposium 

 - Manila, Philippines :  The Institute,  1983 
 - 526 p.  ; gráfs 
<br/><br/><label>LCCN: </label>26092 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cultivos--Rendimiento.<br/>Plantas--Efecto del medio ambiente.<br/>Sistemas de cultivo.
<br/><br/><label>Dewey Class. No.: </label>581.5222  / I57