486 



MISCELLANEOUS FARM SUBJECTS 



crop, without, however, sensible increase in profit. The results of 

 experiments conducted for several years on series of plats of gravelly 

 gray soils with yellow subsoil, in which fertilizers were applied at the 

 rates of 400, 600, and 1,200 pounds per acre, indicated 



(1) That while heavy doses of fertilizers do not give a corre- 

 sponding increase in the yield of cotton, or so large a percentage of 

 profit, yet such heavy applications, within reasonable limits, are 

 judicious, provided the land is in good condition. 



(2) That the limit or maximum amount of fertilizers that 

 can be safely and profitably applied to land in good condition varies 

 considerably, say from 500 to 1,000 pounds per acre, according to 

 seasons, variety of cotton, etc. 



Quantity and Composition of Fertilizer Mixtures Suggested for Ap- 

 plication to Each Acre of Cotton Grown on Various Kinds of Soil. 



a Equals 1 per cent of phosphoric acid. 7.5 per cent of ammonia and 1 per cent of potash. 

 b Slaughterhouse tankage may be substituted for dried blood if. on the basis of the weight of 

 plant food contained, it is cheaper. 



