THE CHEMISTRY OF THE FA KM. 



415 



THE WEIGHT AND AVERAGE COMPOSITION OF ORDINARY CROPS I 



POUNDS PER ACRE. 



C'.i analysis only. 



contain murli less nitn^'ii than cither t!,r 



root crops; aboat three quarion <{f the nitrogen i- in th.- 



16 quarter in the straw. The amount ..f |h.isj,l,,] -Jc acid 

 is not vn-y <liti'rp-nt fnun ' i.j)s ; thi^ in^re.li.-n' 



