New York AGRICULTURAL EXPERIMENT STATION. 129 
At Riverhead.—In the experiment at Riverhead the potatoes 
were dug on September 16 and sorted into two grades, marketable 
tubers and culls, in the same manner as at Geneva. 
TABLE IX.—YIELDS IN THE EXPERIMENT AT RIVERHEAD. 







YIELD PER ROW.” YIELD PER ACRE. 
SECTION.| Row. Treatment. = = |——----—-——— |—-—_-—-—— a 
eee eas. “Marketable. Culls. 
PL bs lbs Boe iDbses Bu. Lbs: 
PW opravedes: times alsa + | 295 A) LY) Plays | AY) 1 
|S o eeotan rae DRE ODEAVER D GIMNeES Ws . Gis a ont 20 299 45 | 18 20 
NOS praAyedirs sa eeh eet 244 | 26 223 40 | 23 50 
AMI OpPravedco tiles. «cise. ace 272 | 23 | 249 20-20 45 
leks ae ee DMO pla VEG oaciTMeSamars sche oeapel | Mpa: AN At Ore oye 748) 45 
Gum Notisprayed fy as dese <cles 255 20 233 45 | 18 20 
MS Dia VeG ro bITTeSh.s ake + sl en. 285 164 | 261 5 5 aT 
OS ets Fo Pe ots Seo prayedso-tlines.s sures. BoD 15 307 aes 45 
OV ENGL Sra yess sae Sie ae 248 18 227 PAO ee Bo) 30 
LOM Sprayed) o times... . +. << 271 ne 248 As ey lo NS: 35 
1D eh ae LIM sopra Ved osttmess osi.te oes 314 25 287 EO) I Bae 55 
12 | INGt SPLAV.GC mice. ane ts 6.2 lets 205 i38 -| 187 om eel Gs 30 
| 13 | Sprayed 3 times......... 257 | 20 | 235 35 | 18 20 
Line, ees ta opraved.. Limes tee. «6 3454} 154 | 316 42 | 14 eZ 
LS) jeNOt sprayed. s.r. '< Ailes 256 234 | 234 40 | 21 32 






® Originally, the rows were 290.4 feet long. Owing to the influence of nearby trees 
plants near the west end did not thrive and so it was believed that the test would be a 
fairer one if this portion of the field was left out of consideration in making up the yields. 
The yields given are for rows 264 feet long by three feet wide, 55 rows being required to 
make an acre. 
Comments on the table—As in previous years, the gain from 
spraying in this experiment was smaller than in the experiment at 
Geneva. On the average, five sprayings gave markedly better re- 
sults than three sprayings. In each section both of the sprayed 
rows outyielded the unsprayed row and the row sprayed five times 
outyielded the row sprayed three times. 
TABLE X.—YIELD BY SERIES AT RIVERHEAD. 



SERIES. Rows. | Dates of spraying. Yield per acre 
B Bu. Lbs. 
1 Aga ee Pea, Oland: 13.542 janet? JulyilS and Aug. 113 : 2iscer 253 — 
Ti. 2, 5,8, ll and 14....| June 14, 30, July 14, 28 and Aug. 11...| 303 41 
Eley oh os ss 3,0, 9, 12 and 15/5. .| Not sprayed ;.<.).. ken. evs een oar ac 221 38 


Increase in yield due to spraying three times, 314 bu. per acre. 
Increase in yield due to spraying five times, 82 bu."per acre. 
Loss from rot.—There was no trace of rot in this experiment, 
not even on the unsprayed rows. 
9 | ) i 
