136 STORRS AGRICULTURAL EXPERIMENT STATION. 
immediately determined. These determinations served for 
computing the total yields per acre. 
Early in these experiments it was noticed that there was a 
larger percentage of protein in the corn (seeds) from the plots 
upon which no fertilizer was used than there was in the corn 
from the fertilized plots. Later a probable cause of this 
difference was found in the large proportion of immatured ker- 
nels in the seed from the nothing plots ; for a series of analyses 
of corn from several experiments, made so as to compare the 
TABLE 12.— Effects of nitrogenous fertilizers 







Plot No. Kinds and amounts of fertilizers per acre. No. of 
analyses. 
| Ibs. 
0, 00,000} Nothing, . ; : : } ; ule ete Mi 23 
I(and A)} Nitrate of soda, . ; ; : . : 16c¢ 9 
2(and B) | Dissolved boneblack, . ; : ; : 320 10 
~ 3 (and C) | Mauriate of potash, : : : : : 160 IO 
Dissolved boneblack, . : : ; : 320 
4 (and D) Nitrate of soda, . ; : : : : 160 9 
Muriate of potash, : f : : . |°160) 
pend |) Nitrate of me : : : Stood - 9 
6, 6a, 64, Dissolved boneblack, . ; : : : 320) iS 
6c (and F) F Muriate of potash, : : ; . | 160f 
Dissolved boneblack, . : ; : 4 320] 
| Muriate of potash, , ; : 160 17 
Nitrate of soda (Nitrogen, 25 lbs. ) ‘ ; 160 
Dissolved boneblack, . é : 320 
Muriate of potash, : , : ol 10 
Nitrate of soda (Nitrogen, 50 lbs. ) ; : 320 
Dissolved boneblack, . : é 320 | 
Muriate of potash, : : : 160 II 
| Nitrate of soda (Nitrogen, 75 lbs. ) : ; 480 | 
Dissolved boneblack, . : : 320 
10 Muriate of potash, : ; ol 6 
Sulphate of ammonia (Ni itrogen, 25 lbs. ), oath ESS 
Dissolved boneblack, . : 3 320 
II Muriate of potash, : ; al 6 
Sulphate of ammonia ( Nitrogen, 50 lbs. ) : 240 
Dissolved boneblack, . : 320) 
i Muriate of potash, : : 160 6 
Sulphate of ammonia (Ni trogen, 75 lbs, ) ; 360 
Dissolved boneblack, . : 320 
13 Muriate of potash, ; : : : I | 2 
Dried blood (Nitrogen, 25 Ibs. at - : : 200 
| Dissolved boneblack, . ; : : ol 
14 - Muriate of potash, : : ‘ ef eto 2 
| Dried blood (Nitrogen, 50 Ibs. ss , . . | 400 
Dissolved boneblack, . ; ; : 320 
15 E Muriate af potash, : Wen Se ; ol 2 
Dried blood (Nitrogen, 75 Ibs. yee . . | 600 



