Nielsen, Donald R. <br/><br/>
Nitrogen in the environment 

 - New York :  Academic Press,  1978 
 - 2 v. 
<br/><br/>Contenido: v.1 nitrogen behavior in field soil -- v.2 Soil-plant-nitrogen relationships 
<br/><br/><label>LCCN: </label>64395 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrógeno--Efecto en plantas.<br/>Suelos--Nitrógeno en.
<br/><br/><label>Dewey Class. No.: </label>631.411  / N5