FIELD EXPERIMENTS WITH FERTILIZERS. Bab: 
the former being treated with stable manure and phosphoric 
acid, and the latter with a larger quantity of stable manure, 
but without the addition of the mineral fertilizer. 
(EAR Oro: 
SOIL TEST WITH FERTILIZERS ON OATS. 
BY THE STATION, STORRS, 1900. 

















| YIELD PER 
| ESTIMATED 
cs | FERTILIZERS PER ACRE. bes eee YIELD PER ACRE. 
eh = 
S. re e elven ee 
S| Kind, af 3 z eee a aealee 
| S n o D eo 
ei | ae 
| DS $ Lbs. Lbs. Bu. | Lbs. | Bu. 
o | Nothing, - - - — — 60.5 | 98.0 | 22.7 | 1176} — 
A Nitrate of Soda, - 160 Bc50 | 70.5 Ie LOOLO 1 2007011 2 oe ees 
B Dis. Bone-black, - 320 2505 1995.0 }.11960 1b 35 6)| 1428/7350 
Codie VMuriate-of Potash, - 160 BAO P7060.) : 9125, |. 20.3;) 100850329 
00 Nothing, - - - — — 6G: 5 er7 305 | 2225.4 CON == 
Nitrate of Soda, £ 160) 
D Bicone back i 320 | 6.15 | 100.5 | 150.5 | 37.7 | 1806] 15.3 
\ Nitrate of Soda, - 160 
ea ( Muriate of Potash, - 160 § AI TSE SB ER SSS ee: 1 AGEL 
( Dis. Bone-black, — - 320 ) | | 
{ Muriate of Potash, - 160 § Coratien ia O\t 220.5:/(4 7-8) SAAC ears 
Nitrate of Soda, - | 160 
G Dis. Bone-black, at 320 9.64 | 97.5 | 189.0 | 36.6 | 2268 | 14.2 
Muriate of Potash, -. 160 
000, Nothing, - - - — 50.5) 107-50 22.30k 12008 = 
_( Stable manure, - - | 10,000 
se { Dis. Bone-black, ~- 160 “7.99 BOO LAP Steeda Poe ie 
¥5 Stable manure, - - | 16,000 10.68 | 130.2 | 245.5 | 48.8 | 2946 | 26.4 



* 32 lbs. per bushel. 
Experiment of r900.—Oats were grown in the soil test of the 
past year. ‘This is the third time this crop has been grown on 
these plots since the series of experiments was begun. The 
results of the experiment of 1900 are given in Table 16. The 
differences in the appearance of the crop on the different plots 
were quite marked throughout the season. The effect of the 
lack of nitrogen in the soil of those plots upon which no nitrog- 
enous fertilizer was applied was quite noticeable in the pale 
color of the leaves and stems. On the plots with commercial 
fertilizers the ingredient which appears to have had the most 
marked effect on the yield was phosphoric acid (plot B.) The 
yield of seed on this plot was at the rate of seven bushels per 
