35 



ments of the several plants; secondly, upon the condition of 

 fertility of the soil, and the latter is an exceedingly variable 



quantity. 



PROF. STUTZER'S ADVICE REGARDING 

 ARTIFICIAL FERTILIZATION. 



\Vhat is stated hereafter are those quantities which, by reason 

 of scientific investigation and practical experience, have been 

 found to be average quantities; it remains with the farmer to 

 judge in each special case how far he can deviate from them. 

 Dr. A. Stutzer's work, crowned with a prize by an interna- 

 tional commission of the most prominent agricultural scien- 

 tists forms the basis of the subjoined practical instructions. 



(A) Cereals. 



Amongst all plants this class repays in an eminent degree 

 proper fertilization. Nitrate of soda is for this class the 

 most advantageous form of nitrogen. 



Low fertilization oo Ibs. nitrate of soda per acre. 



Medium " 180 " " " " 



High 350 " 



Low 200 " acid phos. (14^ avail, ph. acid) per A. 



Medium " 350 " " " " " 



High 550 " " " " " 



Low 200 " kainit at 12/50^ K 2 O per acre. 



Medium " 350 " " " " " 



High 550 " 



For barley and rye the quantity of nitrogen may be decreased 

 and those for potash (kali) should be increased. 



On humid, heavy soil, decrease nitrogen and increase phos- 

 phoric acid. 



On dry, light, warm soil, decrease phosphoric acid and increase 

 nitrogen. 



If the soil is rich on nitrogen, or if trie preceding crop con- 

 sisted in a nitrogen gatherer, the nitrogen should be decreased. 



