Corn Growers' Association. 



341 



good corn, and an ample supply of phosphoric acid beside. Yet it 

 will not produce satisfactory corn. 



The land raising the normal corn has received the same treat- 

 ment, and a moderate amount of potash in addition. 



The experiment illustrates very forcibly the fact that for the 

 formation of starch available potash is required. 



The land has been badly v^orn, like lots of Missouri clay loams, 

 but has been' brought back to a fine mechanical condition again by 



Characteristic ears from field tliat received repeated applications of manure, clover and bone 

 and one application of muriate of potash. Note that there has been enough starch formed to make 

 every kernel a good one. 



the coarse manures and clover. It contains a large amount of total 

 potash, so much that an analysis would indicate that it was "in- 

 exhaustible." It is really "inexhaustible," not because there is so 

 much of it, but because it is so unavailable, and three rotations with 

 manure and clover in each has not apparently increased its avail- 

 ability. 



The pictures contain a striking demonstration that the corn 

 breeder must be a plant feeder, for the owner of this farm was 

 following approved methods of breeding up his corn, but with little 

 success until he fed the plants properly. 



Examples of the above eff ecti mights be multiplied indefinitely, 

 but, perhaps, enough has been presented to induce you to take into 

 consideration some points that are too often neglected in your efforts 

 to improve your corn or your soils. 



CORN VARIETIES. 



(M. F. Millei', Professor of Agronomy, Agricultural College.) 



The wide variation in the adaptation of different varieties of 

 corn to soil and season is fully recognized by the observing corn 

 grower. A corn that is well adapted to rich bottom lands rarely 



