New York AcricuururaL Expermment Srarion. 249 
‘shown below could hide, or so obscure results of fertilizing as to 
completely change the normal effect under favorable circum- 
stances. This effect of season may be seen by the general 
average of yield from these plats, for the two previous years as 
compared with this year.” 
The table given with above has been changed to show the 
ayerage yields of merchantable tubers from those plats on which 
the seeding was alike, for the two years 1886-7, without regard to 
seeding in 1888, and with mixed seeding but the same for each 
plat in 1889. 









YIELDS PER ACRE. 
Plat. Year. FERTILIZER PER ACRE. HAR 
| | erchant:| otal, 
¥F 7-10'..... 1886....... Four hundred pounds acid iehoentated Dene ak 90.7 | 102.3 
he F110 2. Ieee >> CGN ies 1 CR ee le ge Pierre pred fat 155.4} 165.4 
7-10 =: TASS; 5.5 Mixed fertilizer (see table below)............. 89.9 104.3. 
F7-10..... TSG. 5. ds Mixed fertilizer (see table below)............. 119.1 131.0 


‘This shows that notwithstanding the plats were liberally fer- 
tilized in 1888 the yield was low, but that for the past season it 
was above the average, yet far below the favorable season of 1887, 
when no fertilizers were applied. 
Notes taken on July twenty-ninth indicate that as between plat 
3 and 4 F there was no apparent difference in growth or color of 
tops. Where whole or half tubers were planted the growth of 
tops was ranker than from “finer cut seed.” This has been the 
remarkable characteristic all the season, as it has on all the other 
plats where compared. Plat F 5, growth of tops rather smaller 
than on 3 and 4, but darker green. Plat 6 has made rather 
larger growth of tops than plat 7, and seems also to be nearer 
maturity, while No. 7 has a rather darker color, being about a 
medium between the color of 5 and 6. Plat No. 6 has distinctly 
- the lightest colored foliage. Plat F 8 very like 7 in growth and 
color. Plat 9, growth of tops smaller than on 7 and 8, and a 
trifle lighter colored. Less growth of tops on Plat 10 than on 9. 
Plats 11 and 12 about alike, and like F 3 and 4 but rather heavier. 
13 (no fertilizer), heavy growth of tops of medium color. 14 
(no fertilizer), good growth of tops but rather irregular. Shows 
HE result of water coursing diagonally across the plat. 
32 
