Stelly, Matthias <br/><br/>
Moving up the yield curve  advances and obstacles 

 - Wisconsin  American Society of Agronomy  1980 
 - 103 p. 
 - ASA special Publicatio; no.39 .
<br/><br/><label>ISBN: </label>0891180648 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PLANTS
<br/><br/><label>Dewey Class. No.: </label>581.1  / MOV