New York Agricultural Experiment Station. 589 



Table X. — Financial Gain or Loss per Acre from Use of Fertilizers on 



Grapes. 



Total. 



Complete fertilizer; 

 lime. 



Complete fertilizer. 



Nitrogen and phos- 

 phorus. 



Nitrogen and potas- 

 sium. 



Phosphorus and 

 potassium. 



—$29 23 



+87 39 



+65 69 



+72 67 



+54 71 



+85 82 



+ 68 47 



+ 116 98 



+ 19 29 



+50 60 



Table X gives the net gain or loss in dollars and cents per acre for 

 each fertilized plat as compared with the money return from the unfer- 

 tilized check plat. The cost of the fertilizers that were applied 

 to each plat has varied from year to year, as has the price obtained 

 for the fruit. The amount deducted for the materials each year 

 was based on the market values for that year. The returns from 

 the sale of the fruit represent actual sales made. 



CO-OPERATIVE EXPERIMENTS. 

 In 1910, vineyards were selected in several parts of the Chautau- 

 qua Belt for co-operative commercial fertilizer, stable manure and 

 green manure tests. The vineyards selected represent distinct 

 variations in soil types and differences in altitude. The owners 

 and locations of the vineyards are as follows: 

 S. S. Grandin, Westfield, 5 acres, Dunkirk gravelly loam grading 



into clay loam. 

 Hon. C. M. Hamilton, State Line, 2 acres, Dunkirk clay loam. 

 James Lee, Brocton, 2\ acres, Dunkirk shale loam. 

 H. G. Miner, Dunkirk, 2\ acres, Dunkirk clay loam. 

 Miss Frances Jennings, Silver Creek, 4f acres, Dunkirk shale loam 



to clay loam. 

 J. T. Barnes, Prospect Sta., 5 acres, Dunkirk shale loam. 



In 1911, the Jennings vineyard had to be given up. This is to 

 be regretted as owing to uniformity of soil and evenness of the 



