Quantifying and understanding plant nitrogen uptake for systems modeling / 
edited by Liwang Ma, Lajpat R. Ahuja, Tom Bruulsema. 
 - Boca Raton, FL :  CRC Press,  c2009. 
 - xii, 313 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>9781420052954 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops and nitrogen.<br/>Nitrogen--Fixation.<br/>Plants, Effect of nitrogen on.