594 Report of the Department of Horticulture of the 



serve to emphasize the influence of a previous crop upon succeeding 

 ones, a point that has been mentioned before. This is shown by 

 comparing the yields of 1911 with those of 1912 and 1913. The 

 extreme high-yielding plats of that year fell off more proportionally 

 in the years 1912 and 1913 than those that yielded moderately the 

 previous year, while with two plats there was a gain in 1912. 



LEE VINEYARD. 



The Lee vineyard is a typical upland vineyard situated on the 

 hillside south and east of Brocton. The soil is of the Dunkirk 

 shale loam type and quite stony. The natural drainage is better 

 than in many vineyards, owing in part to the slope, yet rock pockets 

 keep parts of the land wet. However, lack of drainage is not so 

 important here as in hundreds of other cases. The rows extend in 

 a general east and west direction at right angles to the slope, varying 

 in length from 40 to 52 vines. The plats consist of single rows 

 separated by discards. The vineyard has had no serious insect 

 infestations during the life of the experiment and consequently has 

 not been sprayed. Table XIII represents the order of the plats in 

 the experiment with their yields in tons per acre for each year and 

 the four-year average. 



Table XIII. — Yield of Grapes on Plats Differently Fertilized in 



Lee Vineyard. 

 Calculated to tons per acre. 



o 



Treatment. 



4-year 

 average. 



Tons. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



Wheat and cowhorn turnips; 



lime 



Check 



Wheat and cowhorn turnips. . . 



Mammoth clover; lime 



Mammoth clover 



Stable manure ; lime 



Stable manure 



Check 



Phosphorus and potassium. . . . 



Nitrogen and potassium 



Nitrogen and phosphorus 



Complete fertilizer 



Complete fertilizer; lime 



1.74 

 1.61 

 1.53 

 1.63 

 1.43 

 1.97 

 1.91 

 1.58 

 1.64 

 1.54 

 1.72 

 1.45 

 1.42 



