Nitrogen in the environment / 
edited by Donald R. Nielsen, J.G. MacDonald 
 - 2 v. :  il. ;  23 cm. 
<br/><br/> An International conference on Nitrogen in the Environment, held at the University of California Conference Center, Lake Arrowhead, in February, 1977 
<br/><br/>Contenido: v.1. Nitrogen behavior in field soil .-- v.2. Soil, plant, nitrogen relationships 
<br/><br/><label>ISBN: </label>0125184026 
<br/><br/><label>Subjects--Topical Terms: </label><br/>FIJACION DEL NITROGENO--CONGRESOS, CONFERENCIAS, ETC.<br/>NITRIFICACION--CONGRESOS, CONFERENCIAS, ETC.
<br/><br/><label>Dewey Class. No.: </label>574.52  / N53n