9 



It will be noticed that wherever potash was used there was a 

 good crop both of stover and corn, but that in no case was there 

 a good crop where it was not used except on farm-j'ard manure. 

 It is not believed that the phosphoric acid and nitrogen supplied 

 respectively by the bone-black and nitrate of soda should be en- 

 tirely left out of fertilizer for corn ; but it is thought that they 

 should be less prominent than is usually the case. 



The results of experiments in other parts of the State are gen- 

 erally similar to those obtained here. The average increase in the 

 corn crop in twenty-six widely scattered experiments, extending 

 over the years 1889 to 1892, due to the different elements of 

 plant food applied at the rates shown in the above table, has 

 been as follows : — 



Increase due to nitrogen, . . .\ S^yer, 376.C pounds. 

 ° } Gram, o.2 bushels. 



Increase due to phosphoric acid, . . \ f,^"^:^!'' ^^^"^ P«""^l«- 

 ^ ^ } Gram, 2. -4 bushels. 



Increase due to potash, . . .\ ^.^^''Y*^^'' l''^^! 9 poii 

 ^ ' } Gram, 9.0 bus 



unds. 

 bushels. 



In view of the general nature of our results, I suggest as likely 

 to prove satisfactory the use for an acre of corn of materials 

 which will furnish : nitrogen, twenty-six pounds ; phosphoric acid, 

 forty pounds; potash, ninety- pounds. Many combinations of 

 materials may be made which will supply those elements. As one 

 likely to prove generally useful, I suggest : — 



Nitrate of soda, 50 pounds. 



Dried blood, 100 " 



Dry fish, 125 " 



Plain superj^hosphate, ..... 200 " 



Muriate of potash, 190 " 



These materials should be mixed just previous to application, as 

 they are likely to cake if kept. Where fields are managed under 

 a rotation system, into which clover and grass sometimes enter, 

 the amounts named above will be likely to give good crops ; but, 

 as intensive culture usually pays best, my practice, as will be seen 

 by my farm report in another part of this volume, is generally to 

 use larger amounts in the expectation of higher yields. 



The trial of manure alone versus manure and potash for corn has 

 been continued upon the same acre of land, the past being the 

 fourth successive year of similar treatment. Where manure alone 

 was used, we applied at the rate of six cords per acre, spread after 

 ploughing and harrowing in. The manure and potash, similarly 

 applied, have been put on at the rate of four cords of the former 



