18 HATCH EXPERIMENT STATION. [Jun. 



phate. It is believed this object lesson indicates that here, 

 as in England, where the fact has long been pointed out, 

 fertilizers for turnips especially and probably for cabbages 

 also should be rich in available phosphoric acid. 



The fertilizers applied yearly in all the soil tests alluded 

 to in my reports are shown in the table below. In some 

 experiments there have been five instead of four nothing 

 plats, as shown in this table, and the numbering of the plats 

 has been diflerent. In other particulars the plan in all has 

 been identical. It has for its object not the production of 

 large crops, but the discovery of facts concerning the special 

 requirements of crops on the soils tested. 



Applied Yearly per Acre. 



No. 



1. Nitrate of soda, IGO pounds. 



2. Dissolved bone-black, ;)20 pounds. 



3. Nothing. 



4. Muriate of potash, 160 jiounds. 



5. Lime, IGO jjounds. 



6. Nothing, 



7. Farm-yard manure, 5 cords. 

 Q ^ Niti'ate of soda, 160 pounds. 



( Dissolved bone-black, 320 pounds. 

 9. Nothing. 

 ^^ ^ Nitrate of soda, 160 jiounds. 



t Muriate of potash, 160 pounds. 

 ^ . < Dissolved bone-black, 320 pounds. 



\ Muriate of potash, 160 pounds. 



12. Nothing. 



13. Land plaster, 160 pounds. 

 /'Nitrate of soda, 160 pounds. 



14. } Dissolved bone-black, 320 jiounds. 

 C Muriate of potash, 160 pounds. 



