The Bulletin. 33 



At the Edgecombe farm, as an average of the results of 1905 and 

 1907, Cocke's. Prolific produced the following increase of bushels of 

 shelled corn over Holt's Strawberry: At 20 inches, 4.9 ; at 24 inches, 

 9.1; at 30 inches, 8.9; at 36 inches, 2.6; at 40 inches, 3.4 bushels; 

 while at Iredell the increased yields of Cocke's Prolific over Holt's 

 Strawberry, as an average of the results for 1905, 1906 and 1907, 

 were: At 20 inches, 10.3; at 24 inches, 4.1; at 30 inches, 5.6; at 36 

 inches, 6.2; at 40 inches, 5.0 bushels. 



Weekley's Improved increased yields over Holt's Strawberry, as 

 an average for 1905 and 1907 at the Edgecombe farm, wore: At 20 

 inches, 4.5; at 24 inches, 3.9; at 30 inches, 9.5; at 36 inches, 9.0; 

 at 40 inches, 3.7 bushels; while at the Iredell farm, as an average of 

 three years' tests, 1905, 1906, 1907, the increases of Weekley's Im- 

 proved over Holt's Strawberry were: at 20 inches, 2.6; at 24 inches, 

 0.5 ; at 30 inches, 5.6; at 36 inches, 4.6; at 40 inches, 0.4 bushels. 



In the light of these results, coupled with six years' variety tests, 

 it is evident that the largest yields of shelled corn per acre on any 

 type of soil are going to result generally from the use of more prolific 

 varieties, because they will produce more shelled corn per stalk, and, 

 as the stalks are generally smaller and can be planted closer in the 

 row, will contain more stalks per acre. 



AVhen the corn is planted wide apart in the row, and in wide-apart 

 rows — matters not if the best one-eared varieties are used — the land 

 will not "turn out" the maximum yield which it is capable of pro- 

 ducing, for the reason that there are not enough stalks per acre. 



In 1905 Cocke's Prolific and Weekley's Improved, at both the 

 Edgecombe and Iredell farms, produced their largest yields in these 

 tests at the distancing centering about 30 to 36 inches, while Holt's 

 Strawberry did best at the greatest distancing. At the most favor- 

 able distancing (40 inches) Holt's Strawberry at the Edgecombe and 

 Iredell farms yielded less by 12.6 and 4.2 bushels of shelled corn per 

 acre, respectively, than Cocke's Prolific at the distancing best suited 

 to it, which was 30 and 36 inches, respectively. Weekley's Improved, 

 with its best distancing at Edgecombe, yielded 13 bushels more than 

 Holt's Strawberry at 40-inch distancing; while at Iredell Weekley's 

 Improved, with the stalks 36 inches in the row, produced 4.2 bushels 

 more per acre than Holt's Strawberry at its optimum distancing (40 

 inches) in the row. 



In 1906, being a year in which excessive amounts of rain fell dur- 

 ing the growing period, all three varieties produced largest yields at 

 a distancing of 20 inches in the row ; while the next best yields for 

 all were at 30 inches in the row. This year seemed to be especially 

 favorable to the production of maximum yields of all the large one- 

 eared varieties, and at the Iredell farm Holt's Strawberry outyielded 

 Weekley's Improved at both 20 and 30 inches between the hills in 

 four-foot rows. 



