578 Report of the Department of Horticulture of the 



entire section from west to east. The plats extend at right angles 

 to this depression so that the topography is uniform. The soil on 

 the north side is possibly a little lighter than elsewhere in the section 

 but the same extent of each plat overruns this variation. The 

 rows, 46 in number, run north and south and contain 37 vines per 

 row. A few scattering vines have died and not all are yet replaced. 

 The vines in this section were approximately 18 years old when 

 this experiment was begun in 1909. At this time it was a repre- 

 sentative vineyard for this type of soil, except that the west portion, 

 including about 20 rows, was in poor condition. Plats 1, 2 and 3 

 fell in this poorer part. 



As far as could be learned no commercial fertilizer nor stable 

 manure had been applied to the vineyard for at least 10 years 

 before the beginning of this experiment. The tillage had been that 

 ordinarily given; namely, spring plowing, horse-hoeing, hand-hoeing 

 and cultivation with the spring-tooth and disc harrow. Spraying 

 had been done intermittently. 



This section was divided into 11 plats consisting of 3 rows 

 each, with an " outside " row at each end of the section and a 

 " buffer " or " discard " row between successive plats. The plats 

 were numbered from 1 to 11 in order from west to east. The vines 

 are 8 feet apart each way, making 680 to the acre. Each plat contains 

 111 vines, about one-sixth acre. In computing the results the 

 producing vines only are counted. Outside of a few scattering 

 vines of Clinton and Catawba the vines are all Concord. 



treatment of plats. 



Fertilizers were to be applied annually as follows: 



Plats 1 and 7. 

 Nitrate of soda at the rate of 100 pounds per acre. 

 Cottonseed meal at the rate of 800 pounds per acre. 

 Acid phosphate at the rate of 300 pounds per acre. 

 Sulphate of potash at the rate of 200 pounds per acre. 

 Lime (air slaked) at the rate of 2000 pounds per acre. 



Plats 2 and 8. 

 These plats had the same applications as 1 and 7 excepting that 

 no lime was used. 



Plats 8 and 9. 

 Nitrate of soda at the rate of 100 pounds per acre. 



