
FIELD EXPERIMENTS WITH FERTILIZERS. 207 
The white flint corn was planted May 30, in check rows 
three feet apart each way, and the yellow flint was planted six 
days later. The fertilizer was applied to both series of plots 
broadcast on the gth of June. 
The growth on the plots without fertilizer was small. ‘The 
plants were spindling, and of a pale color throughout the sea- 
son. The mixed mineral plots (6a and 64) made nearly as 
heavy a growth of stalks as some of the plots recelving nitro- 
gen, but the plants were pale colored throughout the season, 
and did not develop as heavy a growth of ears. The yields on 
the nitrogen plots were in most cases much smaller where only 
25 pounds of nitrogen per acre were used than where larger 
amounts were added. ‘The increased yields, however, where 
larger quantities of nitrogen were used did not seem to corre- 
spond to the increase in nitrogen. For example, the crop 
obtained where 50 pounds of nitrogen was used, was in most 
cases nearly or quite equal to that obtained where 75 pounds 
were added. 
: TABLE 62. 
SPECIAL NITROGEN EXPERIMENT ON YELLOW FLINT CORN. 
Weight and cost of fertilizers per acre, total crop, and increase of 
crop over that of the nothing plots. ; 













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a FERTILIZERS. aS oe J Se ike et On a 
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a Ae as 5a | 5 [eal se Se Begs 
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ae aoa $ |Lbs.| Lbs.) ¢% | Lbs,| Bu. Lbs. Bu 
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{ Mix’d Minerals, as No. 6a, 80 E Gianna aor 
7 1 Nit. of Soda (25 Ibs. N.), |160 | ota ard SSA REE, 39 ak 
Mix’d Minerals, as No. 6a, coat a Beal abG Bs 
in Nveiat Soda (50 lbs. N.), |320 15.96) 133 ng 3933|70. 39 41.5 
Mix’d Minerals, as No. 6a, a 6 MOB a5. blakonlae 
9 1 Nic of Soda (75 Ibs. N.), 1480 § |'9°92| 139) 99|72.5/4099/72. Sana 
Dis. Bone-black, ) Mxd § |320) FALE ees, ers 
ce Mur. of Potash, fore 160 § | SMS oly \/4- alge 0d 47) 9 
Mix’d Minerals, as No. 62,|480 | ear. Osglasbaliale 
ine cio, of Am. (25 lbs. Nes pee 2 AA eo areata 1297 3h oe as 
Mix’d Minerals, as No. 6a, oa | ae Aaa LaGeed 
a Peioh. OPArmiteo lbs) N.), (240.4 120+5%) 132): 134172-9)3793107 ay 39/39 
Mix’d Minerals, as No. 6a, 560 | | rr Oblkb: 76 
se USHERS of Am. (75 Ibs. N.),|360 § |?*-97| 149] 720/73-9)45 27a 
oo, Nothing, - xf 53} 66)70.6/1538/27.5 2367) — 
66; Mix’d Minerals, eke 64, AG 8.00) 94| 93/70.4/2724 48.6 3497 20.9 









