59 
Plot 4 was manured with 105 lbs. soluble nitrogen, 105 Ibs. 
soluble phosphoric acid, and 105 lbs. soluble potash. This could 
be obtained by the following mixture :—11 ewt. dried blood, con- 
taining 120 lbs. nitrogen, 12 lbs. phosphoric acid, 8 lbs. potash, at 
3s., £1 18s.; 12 cwt. concentrated superphosphate, containing 97 
lbs. phosphoric acid, 18s. 44d., £1 5s, 1d.; 12 ewt. concentrated 
potash salt, containing 993 Ibs. potash, at 12s.,£1 2s.6d.— £4 Os. 7d.; 
freight and application, 10s.; total cost of manuring, £4 10s. 7d. 
Now compare the yield of 3,500 lbs. of raspberries peracre obtained 
from Plot 4 with the yield of 2,050 lbs. obtained from Plot 3 
without manure. There was an increase of 1,450 lbs. of raspberries 
duetothemanuring. The profit of the transaction was as follows:— 
Increased yield per acre, 1,450 lbs. raspberries, sold at 24d., 
£15 12s8.; cost of manure, £4 10s. 7d.; increased profit due to 
manuring, £10 11s. 5d. Or compare Plot 10 with Plot 8, which 
shows a similar profitable result with somewhat less outlay. 
Fruit takes out of the soil much more potash than nitrogen and 
phosphoric acid. Thus, for instance :— 
Would remove from the Soil— 
150 cases of— 
Nitrogen, | Phosphoric Potash. 
Tbs. Ibs. Tbs. 
Apples eas on aa 32 2}. 63 
Pears sais aa are 34 44 15 
Cherries... es wie 6 42 15 
Plums sa tee sas 7% 4} 17 
Gooseberries a = 43 7% 14 
Strawberries see naa 104 53 8k 
It will be surmised from this that a good result might be 
obtained by increasing the allowance of potash in the manure and 
decreasing the nitrogen and phosphoric acid. This was done on 
Plot 10. The nitrogen and phosphoric acid were only two-thirds 
