Bui. 1180, U. S. Dept. of Agricultui 
Plate VI. 
Fig. I. — Corn Grown with Cyanamid (and Calcined Phosphate i. 
Field I, Season of 1 920. 
At left, cyanamid, 1,000 pounds 4-4-2 fertilizer per acre: yield 27.4 bushels. At right, no fer- 
tilizer; yield 11.4 bushels. 
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- 
Fig. 2. — Corn Grown with Cyanamid (and Basic Slag). Field I 
Season of 1920. 
At left, cyanamid, 1,000 pounds 4-4-2 fertilizer per acre; yield 34.3 bushels. At right, no fer- 
tilizer; yield 9.7 bushels. 
