9 



meal as the source ol nili-ogen, gave second highest 

 yiv\d with second highest increase. 



Plot 1, with sulfate of ammonia as the source of ni- 

 trogen, gave an average yield of 079 pounds of cabbage 

 per acre less than cotton seed meal (Plot 4.) 



Plot 2, with dried blood as the source of nitrogen, 

 gave the lowest average yield of the complete fertilizers, 

 but an increase of 10,753 pounds of cah])age per acre 

 over the unfertilized plot. 



Observe that the omission of potash in Plot 6 ditl 

 not decrease the yield as compared with Plot 2, where 

 a complete formula was used. While in Plot 10, where 

 potash w^as used alone, the average increase for two 

 years was only 707 poimds per acre over the unferti- 

 lized plot. 



Comparing results on plots 8, 9, 10, 11, and 12, where 

 the several fertilizer ingredients were used singly, 

 dried blood gave the highest average yield with the 

 highest average increase over the unfertilized plot. 



Figure 1. 



On right of basket, fertilized iilot. 



On left, unfertilized plot. Note difference in 

 an average head from the two plots, as shown 

 heads on tlie top of the bushel basket. 



tlic size of 

 by the two 



