61 



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Wood Ashes, 1500 '' 



Bone Meal, 100 " 



Nitrate of Soda, 100 '' 



IV. 



Wood Ashes, 1500 '' 



Dry Ground Fish, 400 " 



V. 



Muriate of Potash, 115 " 



Dry Ground Fish, 400 " 



The ashes, bone meal or fish should be applied very early in spring 

 or late in ivinter. Apply all these fertilizers broad-cast and harrow in. 

 Do not mix a long time before use : — especially important in case of 

 Nos. Ill and IV. 



Of course these combinations might be indefinitely extended ; but 

 from what has been said as to the required amounts of the essentials, — 

 potash, nitrogen and phosphoric acid, any farmer should be able to 

 figure amounts and combinations for himself. Between combinations 

 I, II, and V there should be little difference in cost. Combinations 

 III and IV will probably cost from four to five dollars more. The 

 elements other than potash and phosphoric acid contained in 

 ashes, and their physical and chemical action in the soil will no 

 doubt, in whole or part offset this increased cost. 



During the past season we carried out on the station grounds one 

 experiment of a similar nature to those described in these pages with 

 potatoes. The records of this experiment have, unfortunately, 

 been destroyed by fire ; but they had been carefully studied and 

 worked out, and I am able from memory to state the leading facts. 

 The soil was similar to that used on our grounds for corn. Previous 

 to the spring of 1889 it had been several years in grass without 

 manure. It was then plowed and planted to sweet corn without 

 manure or fertilizer. The crop was a very good one and even 

 throughout the field. The land was plowed in the fall of 1889 and 

 the experiment with potatoes laid out in the spring of 1890 precisely 

 as for corn. The same arrangement of plots was used, and the same 

 kinds and quantities of fertilizers. No plot gave an entirely satis- 

 factory crop. The barn-yard manure gave the largest yield but not 



