99 

 POTATOES. 



Relative Effects of Sulphates and Chlorides on different varieties. 



Great Harpenden Field, 1922. 



Note.— 7 Plants were set in each Row. 



Manures were: — Dunged Series: Basal Row: Super. 4 cwt.; Sulphate of Ammonia \\ cwt.; 



Dung 15 tons per Acre. 

 Sulphate Row : Basal Manuring ; Sulphate of Potash 184 lb. 



per Acre. 

 Chloride Row : Basal Manuring ; Muriate of Potash 147 lb. 



per Acre. 

 Undunged Series: Basal Row: Super. 6 cwt.; Sulphate of Ammonia 2 cwt. 



per Acre. 

 Sulphate Row : Basal Manuring ; Sulphate of Potash 244 lb. 



per Acre. 

 Chloride Row : Basal Manuring ; Muriate of Potash 197 lb. 



per Acre. 



