CO-OPERATIVE FERTILIZEK EXPERIMENTS WITH 

 COTTON IN 1901, 1902, 1903, AND 1901. 



By J. F. DuGGAR. 



A brief summary of the average results of these experi- 

 '^nents may be found on page b7. 



For a number of years this station has conducted numer- 

 ous local fertilizer experiments, furnishing material and 

 instructions to farmers agreeing to make the tests. 



The number of local fertilizer experiments with cotton, 

 •of Avhich reports were received, was as follows: In 1901, 

 ten; in 1902, thirteen; in 190.3, ten. and in 1901, twenty-one. 

 This does not include a number of experiments that 

 'were made, but of which the experimenters made no reports 

 •or reported accidental loss of results. In all of these years 

 'fertilizer experiments were also made on corn and other 

 •crops, the results of which will be published in future years. 



The chief object of these local fertilizer experiments or 

 •soil tests has been to ascertain the best fertilizer or combina- 

 tion of fertilizers for cotton, growing on each of the prin- 

 cipal soils of Alabama. 



Small lots of carefully weighed and mixed fertilizers were 

 supplied to each experimenter. Detailed instructions as to 

 liow to conduct the experiments and blank forms for re- 

 J>orting results, were also furnished. 



