Food for q{ applying same, the Nitrated crop was worth ^463.30 per 



^*^ acre, while the non-Nitrated plot returned only ^69.00 per 



50 acre. For every dollar expended for Nitrate of Soda, the 

 crop increase gave $30.18 return. 



Late Potatoes. 



Conditions 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 per acre on the Ni- 

 trated plot, marketable tubers, amounted to 57^ bushels; on 

 the non-Nitrated plot the yield amounted to 2ji bushels 

 rwarketable tubers. The gain for Nitrate of Soda was 143 

 bushels, or nearly 62 per cent, increase. 



Early Tomatoes. 



ff^ith this crop the object is to mature quickly, rather than 

 obtain a heavy acre yield; one basket of early tomatoes at $1.2^ 

 ts worth more than 75 baskets later in the season, when the 

 price ts about 8 cents per basket. The plants to be used on 

 the Nitrated plot were treated with a diluted solution of 

 Nitrate four separate times. Plants were field set May 17th, 

 and given six applications of Nitrate of Soda: ist, 100 

 pounds per acre soon after setting out; 2nd, 3rd and 4th 

 of 75 pounds each; and 5th and 6th of 50 pounds each — in 

 all, about 450 pounds per acre. The results were: 



Nitrate. No Nitrate. 



Plants set out in field May 17. May 17. 



First picking Jun« 30. July 1 9. 



Days, setting to first picking 43 62 



Crop at ;^i .00 and upward per basket 40 p.c. 



30 " 10 p. c. 



io " 15 



10 20 



25 



15 



'5 



500 600 



Gross receipts ^377-5° $190.20 



Cost of fertilizer and application i°-35 



Net receipts 367.15 1 90 . 20 



Gain per acre for Nitrate 1 76 . 95 



The indicated gain amounts to a return of $17.09 for 

 every dollar expended for Nitrate of Soda. 



