WHEAT — POTASH AS INSECTICIDE AND FUNGICIDE. 71 



WHEAT. 



KENTUCKY, 1890. 



Experiment by Anderson Jefferies, Glendale, Hardin Co. Bul- 

 letin No. 30. 



''This indicates that fertilizer, rich in potash, would be best on 

 Mr. Jefferies' land " 



NEW JERSEY, 1882. 

 By W. a. Styles, Deckertown, Sussex Co. Bulletin No. 26. 



"The highest yield came from barn-yard manure and complete 

 mixture, but by no means the highest profit. The highest profit re- 

 sulted from the single application of potash." 



VIRGINIA, 1892. 

 By D. O, Nourse, Agriculturist, Bulletin No. 21. 



"Dealing with the three elements in combination, we find that if 

 the potash is reduced one-half, the yield is also reduced; while if in- 

 creased one-half, the yield also shows an increase. This only when in 

 combination with the other elements." 



POTASH AS INSECTICIDE AND FUNGICIDE. 



ALABAMA, 1892. 



Leaf Blight of Cotton, by G. F. Atkinson. Biological Bulletin 

 No. 36. Yellow leaf blight of cotton is very destructive, especially 

 in some years. It is due likely to both improper nutrition and un- 

 favorable physical condition of the soil. Prof. Atkinson's experi- 

 ments show that by the use of kainit, leaf blight is largely, if not 

 entirely prevented, and the yield of cotton increased. This is cor- 

 roborated by many farmers. 



Leaf Blight Experiments, i. At Hope Hull, on the farm of A. H. 

 Clark. Soil — Black loam. 



"There can be no doubt as to the effect of kainit, as my former 



experience is the same as that of this year, but I think to thoroughly 



prevent the disease, it would require not less than 500 or 600 lbs. per 



acre. (Kainit.)" 



2. Experiments at the Station Farm, Auburn: 



"In all of these plots it was easy to see by comparison with the 



others, that the entire or partial prevention of the disease was due to 



the kainit. 



