68 FOOD FOR PLANTS 



only defeats this object, but also lessens the number 

 of fruit buds. 



Instructions for Using Nitrate of Soda on Grapes. 



Apply the Nitrate of Soda by broadcasting it 

 evenly over the entire surface of the vineyard you 

 are fertilizing, at the rate of 200 pounds per acre, 

 during the early spring months, preferably just 

 before the vines are in bud. 



Our Formula for Grapes. 



Nitrate alone 200 lbs. per acre 



or preferably 



Nitrate 300 lbs. per acre 



Acid Phosphate 300 lbs. per acre 



When potash salts can be conveniently obtained we 

 advise the use of fifty pounds of sulphate of potash 

 to the acre every other year. 



GREENHOUSE PLANT FOOD. 



For flowering plants in greenhouses, as long as 

 possible before blooming, apply one pound of Nitrate 

 of Soda to 200 square feet of surface. This appli- 

 cation is equal to 200 pounds per acre. If used with 

 acid phosphate, a larger amount, viz: One and one- 

 half pounds of Nitrate of Soda with an equal quantity 

 of acid phosphate may be used to each 200 square 

 feet of surface, making 300 pounds per acre, provided 

 excessive quantities of barnyard manure have not 

 been used. It is important to thoroughly work these 

 fertilizers into the soil. 



