70 



lows: Nitrate of soda at the rate of 775 pounds per acre 

 to plats 14, 15, & 17; acid phosphate at the rate of 775 

 pounds to plats 18, 20 and 21; and sulphate of potassium at 

 the rate of 388 pounds to plats 23, 24, and 26, The essential 

 ingredients applied were thus approximately of nitrogen and 

 phosphoric acid (P2O5) 125 pounds, and of potash (KgO) 174 

 pounds . Calculated in the terms in which the statement of 

 fertilizer constituents are made (Tahle "A", Appendix) 

 The nitKgen equals 554 pounds NO3 



PgOs Phosphoric Acid = 167 " PO4 



KgO Potash =145 " K 



» It was intended to apply 640 pounds each of nitrate of 

 soda and acid phosphate, and 320 pounds of sulphate of potash, 

 but because of a change in the length of the plats an error 

 was made . 



— PREPARATION OF LAND PLANTING AND CULTIVATION 



The land had been plowed in the early spring seven to 

 eight inches deep thoroughly turning under the corn stubble. 

 On May 17th., tifter three days of moderate temperature, the 

 land was in fair condition for working, although rather moist. 

 It was prepared^fertilized^and planted according to the plan. 

 The continued cold weather succeeding planting and a washing 

 rain June 18th. made replanting necessary June 22nd. It was 

 not necessary, however, to replant a large per cent of the com 



