Fertilizer and Seeding Experiments with Root Crops. 441 



or a combination of two ingredients is shown by taking the average 

 Df results from two plats for two years in each case. 



TABLE XII 



SHOWING THE Average Apparent Increase Per Acre, Average Net Gain 

 Per Acre, and the Per Cent of Total Weight in Tops Result- 

 ing FROM Applications of Single Ingredients and 

 Combinations of Two Fertilizer Ingredients 



From the foregoing table it is clear that the acid phosphate pro- 

 duced a greater net gain with a smaller per cent of foliage when applied 

 alone, than did either of the other ingredients. Acid phosphate and 

 nitrate of soda combined produced a greater net gain than did either 

 of the other combinations or the application of single ingredients, but 

 it did not produce the very lowest per cent of foliage. Not only was 

 the combined acid phosphate and nitrate of soda the most profitable 

 to apply, but its use resulted in the greatest apparent increase in yield 

 of roots. The high price of nitrate of soda is responsible for a seeming 

 lack of correlation between the apparent increase in yield and the net 

 gain per acre where nitrate of soda alone or nitrate combined with 

 muriate of potash, were applied. 



Of the single applications, acid phosphate produced the smallest 

 per cent of foliage and nitrate of soda the largest per cent of foliage. 

 The same relation is apparent when the per cent of foliage produced 

 by each combination of two ingredients is carefully examined. 



