106 STORRS AGRICULTURAL EXPERIMENT STATION. 
EXPERIMENT ON SOY BEANS. 
Two series of plots similar to those upon which the corn 
and cow peas were grown, were planted to soy beans. For 
reasons given below, the crops on similar plots of two series of 
experiments were combined and the yields are given as one 
series of plots (1-25 acre each) in the following table: 
TABLE 27. 
SPECIAL NITROGEN EXPERIMENT ON SOY BEANS. 
Weight and Cost of Fertilizers per Acre, Total Crop and Increase 
of Crop over that of the Nothing Plots. 















vi vi Soy BEans (Seed). Te 
3 28 S ee 
4 | wa | #8 fe ¢ S2 
3 FERTILIZERS. e 5 5 5 se Yield per are 
Ay ace a ae Acre. pa 
wn S35) Ge 11 % Water Ss oA 
is ae La pees 
‘The. $ es Lbs. | Bu. & Bu 
0; Nothing, - - . - - | — 25.1/ 642 |10.7; — 
{ Mixed Minerals, as No. 6a, - |480 
Nitrate of Soda (ae Ibs, 'N.), | -\n6o (\ 2200} 30:8 pm 78% at ses 
Mixed Minerals, as No. 6a, - [480 | 
. Nitrate of Soda (so lbs. N.), = - |320 15-90-) 4T-1y) 1051) ee 
{ Mixed Minerals, as No. 6a, - 1480 ) x: 
9!) Nitrate of Soda (75 Ibs. N.), - [480 § | 19°92 | 39-1 | 999 | 265 |. 5:9 
j Dissolved Bone-black ) Mixed ({ |320 
a ( Muriate of Potash, Minerals } |160 8.00270, b FOC ta 
Mixed Minerals, as No. 6a, - |480 
Ne Sulphate of Ammonia (25 lbs. N.),/120 £2. 4a BO Dacre Bee 
j Mixed Minerals, as No. 6a, - 1480 | 
a ( Sulphate of Ammonia (50 lbs. N.),/240 16.88 | 39.0. - 973 | 16.2) 5.6 
{| Mixed Minerals, as No. 6a, «1480 
t ) Sulphate of Ammonia (75 lbs. N.),|360 21.32 -[°42.0\| 1062 saa 
OO} > Nothing, - = = - -|— — 26.4 631 10.5} — 
64] Mixed Minerals, as No. 6a, - 1480 | 8.00 | 36.5 | 920°) 55. ashes 



It was planned to use upon one series of plots a few hundred 
pounds of soil taken from a plot of ground where this crop had 
been grown the previous year, and where tubercles had devel- 
oped freely. This was done in order to inoculate the new soil 
and cause the tubercles to develop. ‘The crop on the other series 
of plots was to be grown without the addition of the extra 
soil. The soil was not applied until about the middle of July, 
at which time no tubercles could be found on the roots of the 
soy beans on any of the plots. It was thought that it would 
be of interest to ascertain if the soil might be inoculated near 
the middle of the season and the tubercles become sufficiently 
) 
ii ile 
“wh. 15% 2 
ox, 
es a. * 
