24 BULLETIN 153, U. S. DEPARTMENT OF AGRICULTURE. 
Cottonwood cordwood is difficult to split after it becomes dry, but 
considerable quantities, in addition to lumber, are produced in groves — 
or in rows. A value of $2.50 per cord on the stump is considered a 
fair average for the tree throughout the region in which it has been . 
planted most extensively. : ; 
Cottonwood is easily propagated from cuttings. It has done well 
in lowa, and probably would thrive throughout the whole eastern 
region, even to the New England States. 
Table 3 gives the yield and value of cottonwood in Iowa. In this 
table and in the tables for the other species the total costs to date 
are determined by means of the formula, Cost=(S+E+C) 
1.0p"—(S+E), where S=average value of land per acre, E =capi- 
Annual taxes 
rate of interest’ 
(preparation of soil, cost of stock, planting, and cultivation), and 
1.0p"=amount of $1 compounded annually at 3 per cent for a period 
equal to the age of the plantation. Total profit or loss per acre 
equals the amount by which the present value of products per acre 
exceeds or falls below the total. amount of costs to date when com- 
puted at 3 per cent compound interest. Positive amounts are an 
excess profit above 3 per cent; negative amounts indicate the sums 
by which the profit fails to equal 3 per cent. Annual profit or loss 
per acre equals the total profit or loss per acre divided by the amount 
of $1 per annum at 3 per cent compound interest for a period equal 
to age of plantation. 
talized value of taxes = C=cost of initial operations 
TaBLe 3.— Yield and value of cottonwood (Populus deltoides) in Iowa. 
7 | Dn pee é Ps 1 fa mn oO 
| Bh le Yieldperacre.|34 | 2 |G | Profit (+) or 
| 5 2 Biel a dels ble loss yeper 
| BH a lo 
| om oF om |S na o acre. 
S se, alasd o . |a@ 
| - 5 =| Il 43 Saya) ore Pag 
i BY oel es na pes Seuss |selse. 
soa] ee Tired ict SiS | Oe ilans seen eae 
Age. | Soil. g Spal Pes eeea fee SS alae 8 |p a & 
Si || os = Aste intl ats aH Olax be aM 
| D Aa | ~ r= OySiP3 1 oe |p se 5 
| 2/2 | ||] g [Sesigeg! S* jose) z 
a |g = = | le 0s | aos Sue) =m = 
| 2 |2 |e |e) 8 lessees] 2 ieee) alee 
rae pad We er Reg coe es ctee 2 Be | < 
Yrs. | Ft. Ins. | Ft. | Bd. ft. | Cords. 
12 | Sandy black loam...| 54x 8 372 8.4} 54! 3,900) 23. 79/$70. 00/$39. 90/$90. 68/+-$50. 78/-+$3. 58 
We Black loants yest OS 291 9.2 66| 10,350} 16.37] 70.00} 63. 24/123. 72|4+ 60.48|+ 2.78 
93 ee dO zerse Se Do. XG 204} 11.4) 56} 12,320) 17.38} 65. 00/100. 32/199. 33/+ 99.01/+ 2.30 
DOE ies dO= 2 Ps2e ee 24x 3 370} 10.0} 58! 10,860} 29.17) 60. 00/102. 09/159. 80/+ 57.71/+ 1.27 
S10 eee dO see ee ee 64x 74 66) 13.9 68} 6,400} 7.19} 60. 00/113.00} 69.18)— 48.82;)— .92 
saan 6 (ney pean ae 6 x 7% is 14.5 87} 23,850} 12.20} 50. 00/103. 70/221. 30|4+-117. 60/4 2.04 
34 | Clay loam.......-... 7x7 {3 alt 14.0] 85] 10,850 59.07] 20.00] 55. 49/234. 48]+178. 99/4 4.06 
35 | Loamy sand........ 84x 84 137} 13.3] 77] 24,500) 9.34] 40.00} 87. 77/456. 85|+-369.08/+ 6.10 
35) |; Black loam. Ss22sa2 x 8 160} 12.1) 72} 10,850} 17.69} 50. 00/119. 92/131.03)-- 11.11/+ .18 
8 
363|se25- dO fee eee 5 x10 125} 13.4) 74| 15,820) 6.35) 60. 00)144. 25)142.43/— 1.82;|— .03 
40 | Quite sandy loam...|2 x 36 233| 17.6} 100} 49,926) 55.47! 40. 00/116. 88/538. 07/4421. 19/+ 5.58 
41 | Black sandy loam...|6 x 6 193} 12.3) 93) 14,700} 7.74} 30.00} 92.50/136.95)4+ 44.45/+ .57 
43.| Black loam...-...-- foJat- Cats 74, 15.9} 71) 12,600} 5.38} 40. 00/135. 67|115.25|— 20.42;/— .25 
50 | Black sandy loam...|8 x 8 89/= 13::9)) 565}59155500)2 sa s2- 30. 00}136. 73/124. 25}— 12.48/— .11 
a Fie ieee loam 22 ass soles bee 137 bs 3] 82} 32,900) 29. 41) 50. 00/106. 33/336. 50/4+-230. 17|+ 3.81 
SAD i ss OM oe See eee Ee eee 83} 17.1 
71) 16,000} 3.83) 40. 00/107. 54/137. 60|+ 80.06) - 40 
1 Tn addition to the board feet shown in preceding column. 
2 Cottonwood. 
3 Maple. 
4 Single rows reckoned as 50 feet wide by 871 feet long=1 acre. 
