FIELD EXPERIMENTS WITH FERTILIZERS. 47 
TABLE 10. 
SPECIAL NITROGEN EXPERIMENTS ON WHITE FLINT CORN 
(SERIES A). 
Percentages and pounds per acre of dry matter and of protein in the 
grain and stover. 



































; ies | Percentage 
; FERTILIZERS PER ACRE. a ae ti & ee pais 
ke Sigthare gy sue of yield 
Ay eee 5 = «U6 |from min’ral 
ro) a a =| aos plots. 
5 eee eee, p ee ripe ree 
y Kind. z i= ei A 2 A pd 3 
AA ieee: 
Lbs. WSs Cor aes: Go 11,08 7 o% % 
{ Grain, | 990/90.8| 899] 6.94) 89} O61 63 
0, Nothing, - 2! ‘ -|— Stover, |1315|86.9/1143] 7.31 84 66 go 
Total, |2305| — |2042| — [173] 64 74 
Grain, |2125/90.0|1913] 9.81/188| 130 | 132 
5 Heise Minerals, as No. 6a, |480 J | Stover, 2115/78.8|1667) 5.56) 93} 96 | 100 
Nitrate of Soda(25 lbs. N.), 160 Totalaaaion = Asche anlar aioe tea 
4 : Grain, |3100/91.2|2827|11.56/327| 192 | 230 
3 Mixed Minerals; as No. 6a, 480 } | Stover,/2300/80.0/1840| 6.19|114| 107 | 123 
Nitrate of Soda (50 Ibs. N.),/320 Total, |sgool — |4667| — |441| 146 | 188 
| Grain, |3200/90. 4|/2893|12.13]351] 196 | 247 
Mixed Minerals, as No. 6a, |480 ) | Stover,|2325/75.3/1751) 7.63|134| 102 | 144 
9| 2 Nitrate of Soda (75 lbs. N.),/480 Totaly eae) egal Ee ee ee ten 
Grain, |1450/89.2/1293| 9.50/123| * mn 
6 Dis. Bone-black, Mixed |320 ( Stover, 2050 TIS 1595| 5.75] 92 * * 
“| Mur. of Potash, § Min’ls, 160 | otal 3500, — |2888 — jos) * % 
Grain, |2550|/91.3/2328|10.25/239| 158 | 168 
Be { Mixed Minerals, as No. 6a, 480 ) | Stover,|2390 74.3|1776| 4.88] 87] 103 | 94 
Sulph. of Am. (25 Ibs. N.), |120 Total, |4940| — |4104/ — |326| 128 | 139 
| Grain, |3050/89.3/2724|/10.94/298] 185 | 210 
2 Mixed Minerals, as No. 6a, 480 } |Stover,.2790/70.0|1953| 5.69/111| 113 | 119 
Sulph. of Am. (50 Ibs. N.), |240 Total, 5840) — |4677| — |4o9| 146 | 174 
Grain. |3300/88.5/2921|10.63/311/ 198 | 212 
i Mixed Minerals, as No. 6a, 480 ) |Stover, 2675/75 1/2009) 6.13123) 117 | 132 
Sulph, of Am. (75 Ibs. N.), |360 Total, |s975/-— |49301 — |434/ 154 | 185 
Grain, |1425/93.6)1334|11.44/153) gt | 108 
oo| . Nothing, -- - é . | — 4 |Stover,|1540/85.1/1311| 8.75/115| 76 | 124 
Total, |2965| —.|2645) — |268| 83 | 114 
de Grain, |1850/89.3/1652| 9.69/160; * £ 
6} Mixed Minerals, as No. 6a, 4804 | Stover, 2265 81.8)1853} 5.06) 94) * 
Total, 14115] — |3505| — |254| * ei! 

* The average of the yields on plots 6a and 64 is here taken at 100 for comparison. 
