375 



tracted drought and gave a smaller yield, only 6.9 to 8.7 

 bushel per acre, than any other field on the Station farm. 

 The failure of the crop on all plots on this hillside ren- 

 dered the experiment worthless. 



A test of the relative values of cotton seed meal and 

 crushed cotton seed was made on a piece of sandy branch 

 bottom which had borne a crop of oats in 1894 and had 

 since grown up in weeds. The heavy growth of weeds was 

 plowed under with a one-horse turn plow February 27, 1896, 

 and Renfro corn planted March 18. Immediately before 

 planting, rows were marked off with a shovel plow ; in this ' 

 furrow fertilizers were drilled. Then a scooter was run 

 once in this furrow to mix the fertilizer with the soil, after 

 which corn was planted and covered with a double-foot plow 

 stock furnished with two small scooters. Each plot received 

 acid phosphate at the rate of 360 pounds per acre and kainit 

 at the rate of 120 pounds per acre, the mixture of these two 

 fertilizers constituting what is frequently, for convenience, 

 called "mixed minerals." In addition, one plot received 180 

 pounds of cotton seed meal per acre, the other 426 pounds 

 of crushed cotton seed. Both cotton seed meal and cotton 

 seed are valued as fertilizers chiefly because of the nitrogen 

 which they contain. The same amount of nitrogen is con 

 tained in 180 pounds of cotton seed meal as in 426 pounds 

 of cotton seed. 



The yields in bushels per acre were as follows, 83.8 

 pounds of corn in the shuck being required for 56 pounds 

 of shelled corn : 



With 426 pounds crushed cotton seed, (and mixed 



minerals) 26.7 bushel 



With 180 pounds cotton seed meal (and mixed 



minerals) 23.6 bushel 



Difference in favor of cotton seed . . . 3.1 bushel 



