F °pi d io J m tliis case is as pronounced as in the other garden 



crops, and is one of the most profitable factors in the 



1 5° use of Nitrate of Soda. The lengthening of the bearing 

 period is an added advantage. 



Early Potatoes. 



Ploughing was finished the second week in April, 

 and limed at the rate of 35 bushels per acre. Furrows 

 were opened three feet apart, and 750 pounds per acre 

 of a high-grade fertilizer worked into the rows. May 

 1st the potatoes were breaking ground, and an appli- 

 cation of 100 pounds of Nitrate of Soda per acre on the 

 experiment plot was made, followed on the 11th by 

 200 pounds of Nitrate, and on the 29th, 150 pounds 

 more were cultivated in with a horse-hoe. The total 

 Nitrate application per acre was 450 pounds. The 

 Nitrated plot was harvested July 6th, and retailed at 

 an average price of $1.60 per bushel; the plot not 

 treated with Nitrate was dug July 17th, eleven days 

 later, and the highest price obtained was 80 cents per 

 bushel. The Nitrated plot produced per acre 19 

 bushels unmarketable tubers, the non-Nitrated plot 

 46 bushels. The total crop marketable was 297 bushels 

 for Nitrate, and 92 bushels for non-Nitrated plot. 

 Deducting the cost of Nitrate of Soda and the expense 

 of applying same, the Nitrated crop was worth $463.30 

 per acre, while the non-Nitrated plot returned only 

 $69.00 per acre. For every dollar expended for Nitrate 

 of Soda, the crop increase gave $30.18 return. 



Late Potatoes. 



Conditions were the same as in the case of early 

 potatoes, except the Nitrate of Soda was used at the 

 rate of 500 pounds per acre, in five applications. The 

 crop of marketable tubers on the Nitrated plot amounted 

 to 37 Jf- bushels per acre; on the non-Nitrated plot the 

 yield amounted to 231 bushels marketable tubers. The 

 gain for Nitrate of Soda was 143 bushels, or nearly 62 

 per cent, increase. 



