Food for Plants. 



117 



When potash salts can be conveniently obtained we 

 advise the use of fifty pounds of sulphate of potash 

 to the acre every other year. 



Fertilizer Experiment with Wheat. 



W ,..i 





V.^ 



Phosphoric Acid Phosphoric Acid Phosphoric Acid and 



and Potash with 1 oz. and Potash with ^^ oz. Potash without 



Nitrate of Soda. Nitrate of Soda. Nitrate of Soda. 



Yield : SVo oz. Grain. Yield : II/2 oz. Grain. Yield : i/^ oz. Grain. 



