10 



Table 7. - ViiiGyL\rds fortilizod during 5-yoar period, 1924-1928, by areas 





^ 



Vineyards 



fertilized 





Total; 



Pdrccntage of vino- 

 yards fertilized 



Area 



: ; 



, 1 • 



: 2 ■ 



: 3 ; 



; 4 : 



5 : 



^Innually,: 







. w» • 



: yr. 



: yrs. 



: yrs,; 



. yrs,; 



yrs.; 



vino-: 



1924-192B: 



; 1928 



, 



;in:5 : 



; in 5 



:in 5 : 



:in 5 : 



in 5 : 



in 5 ; 



yards ; 



1/ :: 







iNura- : 



Nun- ; 



iNum- ; 



,Nun>- ; 



NiiQ- ; 



Nun- : 



;Nun- : 









;ber 



;ber 



:bcr ; 



.bor ; 



;ber ; 



,bor '; 



,bor ; 



; Percent; 



; Percent 



North East, Pa, : 



■ 2 ; 



: 1 ; 



; 2 ; 



; 1 ; 



: 7 ; 



: 33 ; 



45 ; 



: 85.9 : 



81.3 



airard, Pa. , 



; : 



: 1 



: ; 



, i 





7 ; 



8 ; 



: 85,3 ; 



80.8 



Hudson Yalloy, N.Y.. 



: 7 . 



; 4 



: 2 ; 



; 1 ; 



; 1 



: 17 ; 



, 32 ■ 



: 62,3 ; 



; 68.6 



Chautauqua Co.,N.Y. 



: 25 



: 9 



; 9 



: 15 ; 



: 11 ; 



; 31 



: 100 



: 54.3 ': 



; 48,2 



Michigan : 



: 17 



: 



: 10 



: 8 



: 5 • 



: 15 



: 64 • 



: 46.3 ■ 



: 44.6 



Finger Lakes ,N.Y. 



: 31 



: 19 • 



: 9 



: 11 



: 10 



: 12 • 



: 92 



! 37.6 



: 40 . 7 



Niagara Co», N.Y;. : 



; 7. 



; 6 



: 1 



: 2 



: 1 



: . 



; 17 



: 22.6 



: 15.0 



ilrkansas (19;35-1;929 



i 33 



:" 12 ■ 



: 1 



: 1 '• 



: 2 



: 4' 



: 53 . 



: 15.5 



: 17.9 



Total or a-vreragp 



1 4 

 > i 



:122 



: 61 ■ 



: 34 



: -39 



: 37 



: 119 ■ 



; 412 



: 48.4 



: 47.9 



1/ Tho sun of the years vineyards 'v/ore treated \7ith fertilizer wad divided liy the 

 surn-of the years vino^^rds \7ore studied and tho quotient was raultiplied by 100. 

 Besides the 412 vineyards reporting v/hether fertilizer i/as used for 5 years, 

 there v:ero included 142 other vineyards for v;hich this infori-Btion xr.s reported 

 fron 1 to 4 years. 



Relation of Use to Yields, Ch::.utauqua-Iiric Vineyards 



Vineyards in tho Chautauqua-Erie bolt on the lighter textured soils 

 were fortilizod more than thos^e on the heavier soils, (table 8.). Fertilizer 

 was not applied in 1927 or in 1928 to 7 vineyards studied on the light textixfcd 

 soils or to 29 vineyards on tho heavy soils'. The proportion of vineyards ferti- 

 lized was 87 percent on the light soils compared mth 55 percent on tho heavy 

 aoils. 



•The average application of nitrogen per acre of vineyard fertilized was 

 21 pounds for tho heavy soils 'and 28 pounds for the light soils. Nitrogen. was 

 applied to each vineyard that v/as fertilized. 



tho heavier soils phosphorous was applied to 78 percent, and en the 

 lighter soils, to 85 percent of the vine^^ards fertilized. V/hen phosphorous was 

 included in the fertilizer, the average quantities of phosphoric acid applied 

 per acre of vineyard v/ore 31 pounds on the heavy soils and 37 pounds on the light 

 soils. 



