COTTON. 39 



The soil there is much less rich in lime than at the home station, is 

 more sandy, and is usually deficient in. humus. This work was in 

 charge of the Hon. G. J. Finlay, and results were as follows: Plot 7, 

 which received 200 pounds of kainit, gave much the largest, as well as 

 the most profitable yield of any plot fertilized with a single ingredient, 

 and a larger yield than did Plot 9, where an equal amount of acid 

 phosphate was substituted for one-half the kainit used on Plot 7. - 



"Field No. 2 was thin clay upland, which had been in cultivation 

 for many years. ... A mixture of meal and kainit produced the 

 heaviest crop, increasing the yield to 840 lbs., while the yield of the 

 unfertilized check plots was only 331 lbs. of seed cotton per acre. 



"Field No. 3 was on low land, the soil being very light, colored 

 and quite sandy. It had been in cullivation fifty years, and was 

 planted with 'Peterkin* seed on May 14. Meal alone failed to increase 

 the crop sufficiently to pay the expense of application and kainit gave 

 the best results of any of the single fertilizers." 



Fertilizers for Cotton. Experiment by W. L. Hutchinson and 

 L. G. Patterson. Bulletin No. 24. Soil — Yellow loam lands. 



'*The results obtained from the experiments which have been 

 made indicate that potash is more needed for cotton than any other 

 one ingredient, though a fertilizer which contains a small amount of 

 nitrogen and water-soluble phosphoric acid and a high percentage of 

 potash seems to more adequately meet the demands of these lands." 



NORTH CAROLINA, 1881. 

 By C. W. Dabney, Director. Third Annual Report. 



''Kainit has become very popular with cotton planters. It acts 

 probably directly and indirectly. The sulphate of potash it contains 

 is quite a stimulating food to the cotton plant, and it distinctly 

 promotes a regular and early ripening of the cotton, while it appears to 

 be almost a specific against rust. Kainit maybe used with advantage, 

 therefore, both on the moist lowlands of the eastern part of the State, 

 and upon hillsides of the west, where cotton is out of its kingdom and 

 has to be hastened to its maturity." 



1888. 



By H. B. Battle, Director. Annual Report. 



"Kainit might, with propriety, be used for specific purposes where 

 land is in great need of potash, or as a rust preventive (and un- 

 doubtedly it was beneficial for this purpose)." 



