COTTON 123 
PARTS AND DEMANDS FOR YIELD OF AVERAGE 
ACRE 
Quantity and part Nitro. Phos. Potas. 
190 pounds lint.................... 65 .19 87 
416 pounds of stems................ 6.08 2.45 5.87 
157 pounds of roots................ 1.44 81 2.01 
364 pounds of leaves............... 11.70 4.33 6.57 
256 pounds of bolls................ 6.51 247 4.64 
414 pounds of seed................. 12.96 5.26 4.84 
DLotals ces. 39.34 15.51 24.80 
Here we find the average cotton crop of 190 pounds 
of lint draws from the soil 40 pounds of nitrogen, 
16 pounds of phosphorus, and 25 pounds of potas- 
sium. But stems, roots, leaves, and bolls are re- 
turned to the soil, and are therefore not really taken 
from the land at all. Lint and seed are taken 
away, and are removed from the land. Now what 
draftismadeonthesoil? lLetussee, and atthe same 
time compare with corn and wheat on the basis of 
the average yield of each crop per acre. 
We have the following facts: 
Crop Nitro. Phos. Potas. Totals 
Cotton 
190 Ibs. lint.......... 65 19 87 
414 “ seed......... 12.92 5.26 4.84 
Total. ... 13.57 5.45 5.71 24.73 
Corn 
29.4 bus. grain........ 32.14 12.36 7.06 
4000 lbs. stover........ 41.60 11.60 56.00 
Total. ... 73.74 23.96 63.06 160.71 
Wheat 
13.95 bus. grain....... 19.75 7.44 5.1 
2300 Ibs. straw........ 13.57 2.76 11.73 
Total... . 33.02 10.20 16.83 60.85 
