Food for Plants. 39 



Cotton should be forced as rapidly as possible in its 

 early growth, especially where the Boll AVeevil has been 

 long established. An early apphcation of Nitrate is 

 regarded as very helpful in accomplishing this result. 



An intelligent rotation is recommended for reducing 

 damage from the Boll Weevil. 



Our cotton fertiUzer formula, given in the following 

 text, is believed to be a sound one, and when Nitrate is 

 apphed early and an early variety of cotton is used, it is 

 believed that such a proceeding is one of the best with 

 which to meet the Boll Weevil situation, and that profit- 

 able returns will be made. 



Early Versus Late Applications of Nitrate of Soda to Cotton 



The following figures of averages 

 Proof prove positively that early applications 



Positive. of Nitrate of Soda to Cotton give the 



best results. 



1919-1920- 1921 



Average increase of 23 early applications, 1919 90.22% 



Average increase of 15 late applications, 1919. . . . 42.029o 



Average increase of 8 early applications, 1920 197.35% 



Average increase of 4 late applications, 1920 35.50% 



Average increase of 7 early applications, 1921. . . . 61.44% 



Average increase of 2 late applications, 1921 16.30% 



Average increase of 38 early applications, 1919- 



1921 115.21% 



Average increase of 21 late applications, 1919- 



1921 31 .27% 



April l-:\Iav 11, inclusive, are '' Early " applications. 



May 12-June 26, inclusive, are " Late " applications. 



Instructions for Using Nitrate of Soda on Cotton. 



Cotton is one of the oldest of the 

 Origin of cultivated plants and is the most 



Cotton. valuable fibre in the world. It probably 



originated in India or China. It was 

 first cultivated in the United States in Virginia. 



