Van Burg, P. F. J. <br/><br/>
Agricultural value of various nitrogen fertilizers  : results of reseach in the Netherlands and elsewhere in Europe 

 - Gravenhage :  Landbouwkunkundig Bureau van de Nederlandse Mestoffenindustrie,  1982 
 - 51 p.  ; gráfs. 
 - Neherlands nitrogen technical bulletin  ; 13 .
 - Neherlands nitrogen technical bulletin  ; 13 .
<br/><br/><label>LCCN: </label>47340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizantes nitrogenados.<br/>Nitrógeno--Efecto en plantas.