FIELD EXPERIMENTS WITH FERTILIZERS. ISI 

TABLE 38. 
SPECIAL NITROGEN EXPERIMENTS ON WHITE FLINT CORN 
(SERIES F). 
Weight and cost of fertilizers per acre, total crop, and increase of 
crop over that of the nothing plots. 
; YIELD YIELD 
FERTILIZERS PER ACRE. PER SEC. 
1-50 ACRE. 



> 
On 
oe 
or 

Kind. 
No. of Plot. 
Gain over nothing 
plots 
Weight 
Year 
Cost 
Shelled corn. 
Stover 
Shelled corn 
Stover 

IOjoys\,\| DBhbL. 
igh 
SR 
D 
A 
HH 
og 
wm 
Je 
= 
n 
td 
a 
L2 154,029) 025 tana 
BO:, 122 70S | 
2398/18 .O|II90| — 
20.0)15.4; 998) — 
1300)13.8 
27.0|25.O|1350/10.1 
53.5/32.5)2075|16.7 
40.3/28 .8/2013)13. 
1897|13.61/15.4)/27.0/13.8|1350 
“a! 
(|1897 
1898) 
1899| — 
Av.* 
o| Nothing, - t i ath ne 
no 
mons 
DROW NHYNy 
bo 
on 
O 
bo 
ie) 
et 
1897|10.11 
1898| 9.37 
1899) 9.00 
[ 
| 
| |Av.* 
( 
NO 
WwW Ww 
Mixed Minerals, as No. 6a, |480 
Nitrate of Soda, (25 lbs. N.), [160 
OS on 
1898|12.87|47.7/44.2|42.6/22I10 
oo 
Mixed Minerals, as No. 6a, |480 
Nitrate of Soda, (50 lbs. N.), 1899/12.13/47.4/55.0|42.3/2750 
5 
27 
i 26 
Te 47.6 49.6 42.5 2480 27 
1g 
28 
1897|17.11/31.5/25.0)28.1/1250 
ae Minerals, as No. 6a, 480 j 1898|16.37/48.1|41.4/42.9/2070 
Nitrate of Soda, (75 lbs. N.), (480 Ae 15.26 an beapeyy ae ase 
Vv. .0| £0, : : 
( 
1897] 6.61/25.9/22.0/23.1|/1100|14.8 
1898 5.87/36.9 35 .8/32.9/1790|18.0 
1899] 5.87/33.0/52.0/29.5/2600/13.7 
Agee 35.0) 48.931 .2/2195/15 .9 
1897} 9.99/29.9/33.0/26. 7)1650/18.4 
1898} 9.37/43.0/40.5/38.4/2025|23.5 
1899| 9.62/46. 3/58.0/41.3/2900/25 .6 
Av.* 44,7' 49.3 39.9 2463/24 .6 
( Dis. Bone-black, Mixed 320 | 
| 
( 
[ 
| 
( 
| 1897|13.37|/39.6/33.0)35.4/1650|27.1 
L 
( 
‘ 1 Mur. of Potash, } Minerals, 
g 

to jen Minerals, as No. 6a, |480 
Sulph. of Am. (25 Ibs. N.), - 120 } 
1898|12.87|47.7|44.5|42.6|2225|27.7 
1899|13.37/50.8/53.0/45 .4/2650/29.6 
Av.* 49,3 48 .8 44.0 2438/28 .7 
1897|16.75|38.5/32.0)34.4/1600/26.1 
Mixed Minerals, as No. 62, |480 } |1898)16.37/43.2/37.8 38 .6|1890|23.7 
Iph. of Am. Ibs2N.), -2.(36o: |. 118909 17.12/36.4|42.0/33.4/2100|17.6 
SE aa Av.* 89.839 9/36 .0/1995/20 .7 
( Mixed Minerals, as No. 6a, (480 
) Sulph. of Am. (50 Ibs. N.), - (240 
I 
I 
bdo 

1899] — |15.1/17.5 B75 ee 
I 
POOP potning, <-~- 2 = ane re 13.5| 
Av.* 17,1/16 .1)15.3) 805) — 
2 
3 
1897| 6.61/25.3/29.0 1450|14.3 
1898] 5.87/41.8/37.0/37.3|1850|22.4 
1899] 5.87 30.3/52.5|27.1 2625|11.3 
Av.* 36.1/44.8 32 .2/2238)16 .9 
Mixed Minerals, as No. 6a, |480 







| é 
1897 10.7|10.0| 9.6) 500) — 
1898 DO.0j}14. P17 sO 7 Sopa 
i ie, 
5.8 
2.6 
73 

* Average omitting 1897. 

