156 



AGRICULTURE. 



EXHAUSTION OF FKIiTILlZEKS. (Scotch Authority.) 

 ON CULTIVATED CLAY LOAM. 



Kind of Fertilizer. 



Lime 



Bone meal 



Phosphatic (juanos 



Dissolved bones and plain superphos- 

 phates 



High-grade ainmoniated fertilizers, 

 guano, etc 



Cotton-seed meal 



Stable manure 





J= 5 



(I] 



Per Cent remaining in the 



Soil Unexhausted at 



End of Each of First 



Six Years. 



25 



ON CULTIVATED LIGHT OR MEDIUM SOILS. 



Lime 



Bone meal 



Phosphatic guanos .. 



Dissolved bones and plain superphos- 

 phate 



High-grade ammoniates, guanos 



Cotton-seed meal 



Stable manure . . 



15 



ON CULTIVATED PASTURE LAND. 



Lime. ... 



Bone meal 



Phosphatic guanos 



Dissolved bone, etc 



High-grade ammoniated guanos 



Cotton-seed meal 



Stable manure 



70 

 50 

 40 

 20 

 20 

 30 

 50 



60 

 40 

 30 



20 

 40 



30 



40 



Sulfate of ammonia, nitrate of soda, sulfate, nitrate, 

 and muriate of potash are generally held to be entirely 

 exhausted by the crops grown the season of their applica- 

 tion. 



