208 STORRS AGRICULTURAL EXPERIMENT STATION. 
TABLE 63. 
SPECIAL NITROGEN EXPERIMENT ON WHITE FLINT CORN. 
Weight and cost of fertilizers per acre, total crop, and increase of 
crop over that of the nothing plots. 


| 
| 













: ; f| pg (Gea ae 
u | ~ | per Prot. | 2,9 | So 8. fe ig 
3 2s | se (+50 Acre.) go | ioe eae 
A FERTILIZERS. 1} ie Me ee | 52 | Vsus | as | 2a 
S 5 eee ia Bo eo) 2 eee whee 
Bs mo | ales) & (82l 2 ds [sales 
3 OO aah ei A eee 
a Lbs $ | Lbs.|Lbs.| ¢ |Lbs.| Bu. | Lbs.! Bu 
o| Nothing, “ — | = | 57] 28] 70.4itS 7/320 0)t somes 
Mix’d Minerals, as No. a 480 ) | | 
Nit. of Soda (25 lbs. N.), |160 § gost het Wn siejictobes eich te 59-3/3414)30.2 
Mix’d Minerals, as No. 6a , 480 ) | | 
8 Niibotcoda (50 Ibs. N.), 320 § 15.96 111} 62 79813932 70.2/3079/41.1 
Mix’d Minerals, as No. 6a, 480 | 
it. of Soda (75 Ibs. N.), |480 19.92 114] 68 75.9/3829/68.4/3511|39.3 
is. Bone-black, } Mxd ( 320 | 
ur. of Potash, § Min. } |160 
ix’d Minerals, as No. 6a, 480 
f 
j 
) 
j 

6a 8.00) 75 54 80.4 2867|/51.21/2776/22.1 

IO 
(P2202: 
Wiph, of Ame lbs N\ trv eae Torro 78.2 2676|47.8 3296/18.7 
Mix’d Minerals, as No. 6a,|480 
Sulph. of Am. (50 Ibs. N.),/240 
Mix’d Mi l No.6 8 | 
12) ) Sulph, aed Pipa. ee 21.32| 118] 78/78.5|4063 72.5 3605 43.4 
oo} Nothing, - — | — | 43) 25/78.0/1415)25.3/1378) — 
64) Mix’d Minerals, as Ne. Ae 480 | 8.00} 86) 59/80.4/3012/53.8 2946|24.7 
II 16.88) 109) 64/79.8 3858|68.8 2925|39.7 

“I 
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INFLUENCE OF NITROGEN ON THE PERCENTAGE OF 
PROTEIN. 
The tables which follow give the percentages and yields of 
dry matter and the percentages and yields of protein per acre 
for the two varieties of corn. From these tables it will be 
seen that the crop on the ‘‘nothing’’ plots (those which 
had no fertilizer) often gave a higher percentage of pro- 
tein than was obtained on many of the fertilized plots. 
Earlier work done by this Station shows that ‘‘ poor’? or 
immature corn generally has a higher percentage of protein 
than fully matured corn. This is believed to be due to 
the fact that in the immature condition of plants and seeds 
the percentage of nitrogen is naturally greater, while as the 
plants or seeds advance toward maturity the proportion of car- 
bohydrates (starch, etc.,) is increased, and the proportion of 
protein is thus relatively lessened. In the case of the nothing 
plots the growth ceases before the corn reaches maturity. For 
