51 



In MADISON COUNTY, 4 miles south of Gurlcy, C. T. 

 Butler conducted an experiment on light red clay loam, with 

 red clay subsoil. The results were inconclusive, partly because 

 of injuries by the cotton caterpillar. See page 55. 



In MADISON COUNTY, 3 miles northwest of Huntsville, 

 W. \V. Fox conducted a fertilizer experiment on gray land 

 with red clay subsoil. This proved inconclusive because of 

 want of uniformity in the fertility of the land. Apparently 



MARION COUNTY, 6 MILES NORTHEAST OF GLEN 

 the most profitable fertilizer was cotton seed meal. See page 55 



ALLEN. 



W. P. Letson. 



Dark sandy loam, red clay subsoil. 

 This land has been cleared for 30 years. The preceding crop 

 was cotton. There was no damage from rust or insect attacks. 

 There was a perfect stand. The plots in this experiment were 

 I'g-acre each, instead of 'v^^ as were the regular plots, but 

 received the full amount of fertilizer. The yields were so ir- 

 regular that no definite conclusion can be drawn, except that 

 cotton seed meal and nitrate of soda were profitable. 



Increase of seed co'.ton per acre when cotton seed meal was added: 



To unfertilized plot 450 lbs. 



To acid phosphate plot 200 lbs. 



To kainit plot 201 lbs. 



To acid phosphate and kainit plot 263 lbs. 



Average increase with cotton seed meal 279 lbs. 



Increase of seed coUon per acre when acid phosphate was added: 



To unfertilized plot 100 lbs. 



To cotton seed meal plot — 150 lbs. 



To kainit plot —50 lbs. 



To cotton seed meal and kainit plot 12 lbs. 



Average increase with acid phosphate — 10 lbs. 



