64 



INTERNATIONAL CONGRESS OP VITICULTURE 



100 Ibs. per acre. 



800 Ibs. per acre. 



300 Ibs. per acre. 



200 Ibs. per acre. 



of soil and of like age, except that the west portion including about 20 rows 

 was in poorer condition than the remainder of the section. 



As far as could be learned no commercial fertilizer nor stable manure 

 had been applied to the vineyard for the last ten 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 harrows. Spraying had been done intermittently. 



This section as shown in Figure 1 was divided into 11 plats consisting 

 of three rows each, beginning on the west side. The rows are eight feet apaH 

 and the vines stand eight feet in the rows, making 680 per acre. Each plat 

 would contain 111 vines if none were missing, or approximately y Q of an acre. 

 In computing the results the actual number of producing vines are counted. 

 Outside of a few scattering vines of Clinton and Catawba the vines are all 

 Concord. 



Treatment of Plats. 



Fertilizers were applied as follows: 

 Plat 1. 



Nitrate of soda at the rate of 



Cotton seed meal at the rate of 



Acid phosphate at the rate of 



Sulphate of potash at the rate of 



Lime (air slacked) at the rate of 2000 Ibs. per acre. 



Plat 2. 



Plat 2, separated by a discard row from plat 1, had the same application 

 excepting that no lime was used. 

 Plat 3. 



Nitrate of soda at the rate of 



Cotton seed meal at the rate of 



Acid phosphate at the rate of 



Plat 4. 



Nitrate of soda at the rate of 



Cotton seed meal at the rate of 



Sulphate of potash at the rate of 



Plat 5. 



Sulphate of potash at the rate of 



Acid phosphate at the rate of 



Plat 6. 



Unfertilized. 

 Plat 7. 



Duplicate of plat 1. 

 Plat 8. 



Duplicate of plat 2. 

 Plat 9. 



Duplicate of plat 3. 

 Plat 10. 



Duplicate of plat 4. 

 Plat 11. 



Duplicate of plat 5. 



Each plat is separated from adjacent ones by discard rows not considered 

 in the results. 



100 Ibs. per acre. 

 800 Ibs. per acre. 

 300 Ibs. per acre. 



100 Ibs. per acre. 

 800 Ibs. per acre. 

 200 Ibs. per acre. 



200 Ibs. per acre. 

 300 Ibs. per acre. 



