486 ReEportT OF THE HortTICULTURIST OF THE 
| 
TABLE VII.— AVERAGE TIME OF GROWTH, WEIGHT PER HEAD, ETC., OF LETTUCE 
Forcep WITH AND WITHOUT COMMERCIAL FERTILIZERS. 
(FALL AND WINTER, 1896-7, TWO CROPS.) 
Y 


Fertilizers per acre. 4 ss iB a mph 
— Sarde eh oa E ee A oe ay 
Seer sae = 88 eee 
oF sate Sela 3, 52. .32-) Soe 
TS stipe” ne ole So. Bae Pah (ae a 
° a} OE, Ons ae oO 
xs 3 ® 1) woos wo OS u 
am q a soi SS og Sas 
g 4 & 2 oe ce : Bag 
cy B 7, A a a a Bs 
Lbs. Lbs. Lbs. 1896. 
pres 600 400 1831-3 Oct. 27. 97.3 5.36 95.6 hoe 
IRA Dies wake eh A a Oct. 27. Di. 5.04 96.7 enbeavte 
i RE Ba | 600 ADO UT AIT 5 Oct. 27. 96.8 4.97 95.6 = ate 
YE: San gaged 600 : 400 2662-3 Oct. 27. 96.6 5.72 97.8 sate 
1897. 
ro Waele f *600 +400 100 Feb. 18. 76.4 6.51 100 52.7 
Ae 4c Bie end Powe rar sds Feb. 18. 74.8 6.67 100 55.7 
138; «2. (O00 7400 Fo Feb. 18. fan hoa k 6.88 100 59.2 
14a... *600 7400 200 Feb. 18. 76.9 5.89 100 52.3 
aS 

Nitrate of soda with stable manure.— In the first test the growth 
was somewhat more vigorous on Soil 14 which received the greater 
amount of the nitrate than on either Soil 4 which received the 
lesser amount or on Soil 13 which received none. Similar results 
were obtained in the next test where Soil 14a gave slightly larger 
and better lettuce than did either Soil 4a which received half as 
- much nitrate of soda or Soil 18a which received none. In neither 
test did the use of nitrate of soda on the soils already well supplied | 
with the stable manure result in sufficient improvement of the 
lettuce to encourage its use in this way. 
Acid phosphate and sulphate of potash with stable manure.— 
The use of the acid phosphate at the rate of 600 pounds per acre 
and sulphate of potash at the rate of 400. pounds per acre made 
practically no difference with the lettuce in the first test as may be 
seen by comparing Soils 12 and 13. (See Table 7.) But with 
the second test, the application of these fertilizers having been 
repeated on Soil 13 at the same rate as before, the lettuce headed 
* The total amount including what was applied to this soil for the preceding 
crop was 1,200 lbs. per acre. 
+ The total amount including what was applied to this soil for the preceding 
crop was 800 lbs. per acre. 
