1912.1 PUBLIC DOCUMENT — No. 31. 221 



TYPES OF CORN SUITED TO MASSACHUSETTS 

 CONDITIONS. 



BY P. H. SMITH AND J. B. LINDSEY. 



Introductiox. 



Since 1903 experiments have been in progress with corn to 

 determine, if possible, those varieties, or rather types, best 

 suited to Massachusetts conditions. With this end in view the 

 total yield of dry matter per acre, the digestibility, the relative 

 proportions, and in some cases the composition, of the various 

 parts of the plant (stalk, leaf, ear and husk), and the relation 

 of the stage of development to the relative proportion of differ- 

 ent parts as affecting the food value have been carefully 

 studied. 



Soil, Cultivation, Size of Plots, Fertilizers used. 

 With the exception of the Eureka and Pride of the North, 

 varieties tested in 1904, the corn was grown upon one-twentieth 

 acre plots (30 by 73 feet), rows running east and west. The 

 soil consisted of a light sandy loam such as might be considered 

 satisfactory corn land. Each plot was liberally and uniformly 

 fertilized. 



1906. — Varieties : Learning and Pride of the North. 

 Fertilizers used per acre : — 

 200 pounds high-grade sulfate of potash, equivalent to about 100 



pounds potash. 

 300 pounds acid phosphate, equivalent to about 45 pounds available 



phosphoric acid. 

 200 pounds nitrate of soda, equivalent to about 30 pounds nitrogen. 

 200 pounds dry ground fish, equivalent to about 16 pounds organic 

 nitrogen. 



The corn planted in 1906 produced an exceptionally fine 

 crop. This was evidently due to very favorable weather con- 



