60 The Bulletin. 



EFFECT OF DIFFERENT METHODS AND TIME OF APPLICATION OF 



FERTILIZER. 



The results presented in Table VII were obtained from experi- 

 ments planned to show the eifect on yield of seed cotton from 

 applying— 



{a) All the fertilizer in the drill before planting; 



(h) Dividing the fertilizer into two equal parts, applying one-half 

 in'the drill before planting and the other half as a side dressing about 

 July first ; and 



(c) From applying all of the fertilizer broadcast before planting, 

 the quantity of fertilizer and the materials entering into it being the 

 same in all three cases. • 



Taking the results as a whole, the increased yields and profits show 

 that it has made very little difference whether all of the fertilizer was 

 applied in the drill before planting, or whether it was divided into 

 two equal parts and one-half put in the drill before planting and the 

 other half applied as a side dressing about July first, according to 

 season. The average yield and profit from broadcast application of 

 fertilizer was less than two-thirds that produced by the same quantity 

 of fertilizer when applied in either of the two ways given above. 

 The amount of fertilizer used in the above test was 400 pounds per 

 acre, and it is quite clear that the best and most economical way of 

 using this amount of fertilizer per acre is in the drill before planting 

 the crop. Larger quantities might give as good or bettor results 

 broadcast, or when applied at different times. Experiments are be- 

 ing made to obtain information on these points. 



