lizcd soil, a fertilizer application of 63 pounds of Nitrate of 

 Soda, 400 pounds of acid phosphate and too pounds of 

 muriate of potash produced 135 pounds of strawberries, a 

 gain due to the fertilizer of 35 per cent. IV hen the Nitrate 

 of Soda application was increased to 2^0 pounds to the acre 

 the crop gain was loi per cent^ and when the Nitrate was 

 increased to 375 pounds the gain was iio per cent. The 

 green manuring experiment was unfavorable to the green 

 manure; the fertilizer application containing 125 pounds of 

 Nitrate of Soda per acre produced a crop gain of 37 per 

 cent; when the cow peas were substituted for the Nitrate 

 the gain was only 6 per cent. 



The crop returns on the grape plots show considerable 

 unevenness, the yields for 1898 being particularly light, 

 owing to bad weather; comparatively, however, this does 

 not affect the results as showing the efficiency of the com- 

 binations of fertilizers used. The following tables show 

 the yields of fruit in pounds per acre. 



Food for 

 Plants 



^07 



Delaware Grapes. 



Plots. 



2 1 



15 

 16 



17 

 22 



Nitrate 

 Soda, 

 o lbs. 

 63 " 

 250 " 



375 " 



125 " 



Acid 

 Phosphate. 



O lbs. 

 400 " 

 400 " 

 400 •' 



400 " 



2 3 Green manure 4'-"-' 



Muriate 

 Potash. 



O lbs. 

 lOO " 

 lOO " 

 lOO " 



200 " 

 2 00 " 



1898. 

 1,425 

 2,855 

 3,920 



3.7.35 



3,650 

 3,290 



Pounds per acre. 



1899. 



7.396 

 12,144 



13.372 

 15,652 



I 2,628 

 I 1,080 



1900. 



6,180 



12,240 



I 2,420 



14,320 



I 2,280 

 I 0,820 



Average. 

 5,000 

 9,080 

 9,904 



I 1,236 



9.519 

 8,397 



Plots. 

 2 I 



15 

 16 



17 



Nitrate 

 Soda. 

 O lbs. 

 63 " 

 250 «' 



375 " 



Acid 

 Phosphate. 



o lbs, 

 400 " 

 400 " 

 400 " 



22 125 " 400 

 2 3 Green manure 4^° 



Niagara Grapes 



Muriate 



Potash. 



O lbs. 

 100 " 

 100 " 



100 " 



200 '* 

 200 *' 



1898. 

 1.995 



2.275 

 3,650 



3.975 



3,610 

 2,790 



Pounds per acre. 



1900. 

 3,980 



1899. 



7>492 

 13,488 



14.363 

 19,204 



11,956 

 8,208 



4,200 

 9,260 

 9,120 



7,500 

 6,340 



Average. 

 4,490 

 6,654 

 9,091 



10,766 



7,689 



5.779 



It will be noticed that there is a considerable difference 

 in the yield of the two varieties of grapes, due largely to 

 maturing periods of the two types. For comparison, 

 the average of the two varieties is taken ; the following 

 table shows the gain over the unfertilized soil due to the 

 different fertilizer combinations : 



