New York Agkicultukal Expekiment Station. 33 
In series C, we note that the plats of the largest and smallest yield 
have received during the rotation different quantities of fertilizer, but 
in series E these plats of varying yield have received the same fertili- 
zation. 
In a number of the plats we have this year a like yield of merchant- 
able corn, viz. : C 2, 3, 9, 12, and E 1 and 5. If the crop is governed 
by the fertilizer and previous history of the land, then these plats 
should all show a like history. The following summary shows, how- 
ever, that the past treatment has been variable: 
1882. 
1883. 
C 12 Corn, 400 lbs. fertilizer. 
E 1 Sod. 
Potatoes. 
Potatoes 400 lbs. fertilizer. 
Potatoes 400 lbs. fertilizer. 
Potatoes 400 lbs. fertilizer. 
E 5 Sod. 
Corn 400 lbs. fertilizer. 
Total fertilizer, 1,600 lbs. x manure. 
2,000 lbs. 
1884. 
Fert. 
C 2. Corn 400 lbs. 
C 3. Corn and cane, 400 lbs. 
C 9. Corn 400 lbs. 
C 12. Cane 400 lbs. 
E l. Potatoes 400 lbs. 
E 5. Potatoes 400lbs. 
2,400 lbs. 
Fert. 
Corn 1,000 lbs. 
Corn l,ooo lbs. 
Corn 1,000 lbs. 
Cane l.ooolbs. 
Cow peas.. 400 lbs. 
Corn 400 lbs. 
4,800 lbs. 
Potatoes . . 
Potatoes . . 
Squash... . 
Potatoes. . 
Potatoes . . 
Potatoes. . 
. 400 lbs. fertilizer. 
. 400 lbs. fertilizer. 
. 400 lbs. fert. and man. 
. 400 lbs. fertilizer. 
. 400 lbs. fertilizer. 
. 400 lbs. fertilizer. 
2,400 lbs. x manure. 
We may investigate yet further. In C 5, 7, 8, 12 and 13, we have 
substantially like treatment during the years 1882 to 1887, the same 
amount and kind of fertilizer being used each year on each plat. The 
yields have been per acre: 
05. 
C 7. 
C 8. 
C 12. 
C 13. 
1882.. 
62 
bush. . 
No crop 
28 bush. . . . 
52 bush. . 
50 bush. 
1883.. 
Potatoes 
129 
bush. . 
162 bush. . . . 
152 bush 
191 bush.. 
79 bush. 
1884.. 
Forage, green. 
22 J 
i tons.. 
ll.o tons.. 
8 tons 
19M tons. . 
50 bush.corn 
1885.. 
Forage, green. 
19 
tons. . 
12.0 tons. . 
19 tons 
28M tons.. 
23% tons. 
1886.. 
98 
bush.. 
36 tons.. 
29 bush. . . . 
118 bush.. 
163 bush. 
1887.. 
66 
bush.. 
38 tons.. 
27 bush. . . . 
56 bush.. 
52 bush. 
In 1882, the corn was of different varieties; hence the figures are 
not strictly comparable. In 1883, the figures are all for crop, and the 
variation between the plat is quite large; in 1884 and 1885, the forage 
was of different sorts of corn and cane; in 1886, the potatoes represent 
different seedings; in 1887, the conditions all duplicate. The fertilizer 
5 
