164 Proceedings of Indiana Academy of Science. 
TABLE V. 
Content of Nitrogen, Phosphorus and Acre Yield. 6 to 8% Organic Matter. 
Sample | Bushels of ee Cet: Lbs. per | Per Cent. | Lbs. per | Per Cent. | Lbs. per 
No. Corn 8 Acre Nit. Acre Phos. Acre 
Matter 
6 50 7.20 144, 000 .210 | 4,200 .145 2,916 
if 75 7.05 141, 000 252 5,040 202 5,454 
8 35 7.10 142, 000 171 3,420 094 1,890 
10x 15 6.60 132, 000 157 3,140 .105 2,106 
22x 40 6.87 137,400 a ls¥é 3, 150 183 3, 672 
29x 15 6.13 122, 600 098 1,969 094 1,880 
BO Var ol geese seca cee 7.02 140, 400 119 2,380 118 2,278 
37x 45 6.10 122,000 BY) 2,650 188 3,760 
38 | 30 6.12 122, 400 165 3,305 097 1,944 
424 55 7.39 147, 800 .192 3, 840 154 2,916 
ix 0 7.46 149, 200 . 260 5, 200 .270 5,400 
31x 35 7.06 141, 200 140, 2,800 .143 2,862 
48 40 eal 142, 200 210 4,200 124 2,482 
40.45 137, 200 3, 484 3,043 ave. 
x—Acid soil. 
v—Virgin soil. 
TABLE VI. 
Content of Nitrogen, Phosphorus and Acre Yield. 8 to 10% Organic Matter. 
Sample Bushels of rs Pent. Lbs. per Per Cent. Lbs. per Per Cent. Lbs. per 
No. Corn Mo Acre Nit. Acre Phos. Acre 
atter | 
11x 65 8.52 170,400 .218 5, 260 116 2,322 
21 80 8.37 167,400 .252 5,040 216 4,320 
23 55 8.35 167, 000 226 4,524 197 3,942 
66.6 168, 239 | 4,941 3,528 ave. 
x—Acid soil. a, . 
TABLE VII. 
Content of Nitrogen, Phosphorus and Acre Yield. 10 to 15% Organic Matter. 
Sample | Bushels of re Cent. Lbs. per Per Cent. Lbs. per Per Cent. Lbs. per 
No. Corn M: elena Acre Nit. Acre Phos. Acre 
Matter 
| 
43 60 10.04 200, 800 297 5,950 189 3,780 
44 65 13.00 260, 000 .267 5,346 240 4,800 
51x 0 12.54 250, 800 434 8, 680 259 5, 184 
62.5 237, 200 6,659 4,588 ave. 
x—Acid soil. 
