Vy, We! 
CALCIUM ele 

CYANOGAS A-DUST 
DISPLAY CARTON 
CYANOGAS* is calcium cyanide, a 
material which liberates hydrocyanic 
acid gas (HCN) on exposure to the 
natural moisture in the air. A fine 
powder CYANOGAS A-DUST is 
adapted to use with a duster for 
rodent control and for various other 
purposes in the field of insect and 
rodent control. CYANOGAS ANT- 
KILLER is specially packed for 
treating ant nests in lawns and gar- 
dens. CYANOGAS G-FUMIGANT 
is comparable to sea-sand in the size 
of the particles, flows and sifts freely 
and is dustless in application; it is 
used for fumigation. 
FARMERS, RANCHERS, POULTRYMEN 
require CYANOGAS to kill destruc- 
tive rodents such as RATS, MICE, 
WOODCHUCKS (GROUND- 
HOGS), MOLES, GROUND 
SQUIRRELS, GOPHERS and 
PRAIRIE DOGS. 
GARDENERS, HOME OWNERS use 
CYANOGAS ANT-KILLER to rid 
lawns and gardens of ants. 
GREENHOUSES use CYANOGAS G- 
FUMIGANT throughout the year 
for the control of many kinds of in- 
sect pests. 
FLOUR MILLS and GRAIN ELEVATORS 
fumigate to control insects to pro- 
duce clean flour and to save grain 
from damage. 
WAREHOUSES, including seedsmen,. 
fumigate with CYANOGAS regu- 
larly to control both insect and ro- 
dent pests. 
PEST CONTROL OPERATORS are large 
purchasers of CYANOGAS A-DUST 
for use in their rat control activities. 
HEALTH OFFICERS both endorse and 
use CYANOGAS for rat control in 
the U. S. A. and throughout the 
world. 
FOR FURTHER INFORMATION WRITE 
AMERICAN CYANAMID & CHEMICAL CORPORATION 
A Unit of American Cyanamid Company 
Insecticide Department 
30 Rockefeller Plaza, New York, N. Y. 
Kansas City, Mo. Azusa, Cal. 
*Reg. U. S. Patent Office 
Vy, RECUS PAT OFF. 
CALCIUM OGA f 

154 


Corn Data 
Charts, Tables and Miscellaneous Material to Growers, Processors 
and Retailers of Hybrid Corn. Material Supplied by 
Funk Bros. Seed Co. 
Labor and Power 
Requirements 
(Requirements in Hours Per Acre) 





x e 
Gperation © Moehine Source of Pawer as 25 28 
o 
SS SieS 
Crop Residue Disposal 
Harrow, rake and burn|Row-crop tractor | .47 238 
Cut with 14 ft. dise 
harrow Row-crop tractor | .23 Py 
Primary Soil Prepara- 
tion: 
2—16 in. plow 6” disc 
rot. hoe 20 H.P. tractor .88 84 
2—14 in. plow 6 horses 1.83 |10.57 
6 ft. cover crop dise |20H.P. tractor | 1.02 1.00 
11.5 ft. field cultivator|20 H.P. tractor 50 50 
8 ft. dise harrow and 
10 ft. spike harrow |20 H.P. tractor .86 .84 
Secondary Soil Prepa- 
ration: 
8 tandem disc harrow |20 H.P. tractor 34 33 
10’ spike-tooth harrow 
14’ single disc harrow |Row-crop tractor | .22 sal 
14’ single disc harrow |4 horses 1.15 | 4.42 
30’ spike-tooth harrow|Row-crop tractor | .08 .08 
20’ spike-tooth harrow|4 horses 25] .98 
Planting: 
4-row planter 20 H.P. tractor 25 24 
2-row planter Row-crop tractor | .55 50 
2-row planter 2 horses 329) 10D 
2-row lister 6 horses 95 | 5.80 
2-row lister 15 H.P. tractor 55 55 
Cultivation: 
21’ spring-tooth weeder|Row-crop tractor | .14 12 
21’ rotary hoe Row-crop tractor | .16 Ae 
4-row cultivator 20 H.P. tractor 25 24 
2-row cultivator 15 H.P. tractor 44 42 
2-row cultivator « 4 horses 59 | 2.35 
1-row cultivator 2 horses 1.20 | 2.40 
Harvesting: 
Hand husking 2 horses 5.50 | 11. 
1-row picker 15 H.P. tractor | 1.75 1.50 
2-row picker 20 H.P. tractor | 1.33 1.00 
Cutting with binder [3 horses ila 1/254 
Cutting with field 
harvester 20 H.P. tractor it 1s 
Hauling to silo 2 horses D. 10. 
Filling silo 20 H.P. tractor De 1. 


or 50 bushels ear corn per acre. 
Hours are for one time over one acre with machine used. 
Harvest figures are based on average yields of 8 tons silage 
How to Determine Acreage 
of Corn in the Field 
Determine the number of acres in a 
field or trial plot as follows: 
If the dimensions are known or 
measured, multiply the length in rods 
times the width in rods to get the area 
in square rods. Divide this area in 
square rods by 160 (number sq. rods 
in an acre). The result is the number 
of acres or fraction of acres. 
If the dimensions are not known, 
multiply the number of rows times the 
average width between rows (in feet) 
times the length of the plot (in feet) 
to get the area in square feet. Divide 
this area in square feet by 438,560 
(number sq. ft. in an acre). The re- 
sult is the number of acres or fraction 
of acres. 
To harvest or plant an approximate 
acre of corn, cover the number 80 rod 
rows or their equivalent shown be- 
low: 
Row Spacing No. of Rows Row Spacing No. of Rows 
3 ft. Wy 3 ft., 4in. 10 
3ft., 2in. 1014 3 ft., 6 in. 92, 
To lay out one acre of land four 
times as long as the width the length 
is 417 feet, 4 inches, and the width is 
104 feet, 4 inches. Depth of one acre 
plots for the following frontage widths 
is: 
Frontage Depth Frontage Depth 
20 feet 2187 feet 40 feet 1089 feet 
25 feet 174214 feet 50 feet 87614 feet 
33 feet 1320 feet 100 feet 43514 feet 

Analysis and Feeding Value of Corn 




















Feedstuff | Percentage Composition by Weight 
Ether | Nitrogen Free : 
Mois- Ash Crude | Extract Extract Crude Cal- | Phosphorus 
ture Protein | (fat) | (carbohydrate) | Fiber cium 
Corn, Shelled 12.9 1.3 9.3 4.3 70.3 1.9 01 26 
Corn (ear) Chop 10.7 2.0 8.2 3.4 66.5 9.2 
Corn Fodder (green, immature) 79.0 1.2 1.7 A) 12.0 5.6 
Corn Fodder (green, mature) 73.4 1.5 2.0 9 15.5 6.7 
Corn Fodder (dried) 11.8 5.8 7.4 2.4 49.6 23.0 
Corn Stover (dried) 10.7 6.1 5.7 1.5 45.7 30.3 AB 10 
Corn Silage (immature) 79.1 1.4 5 Pee 8 11.0 6.0 
Corn Silage (mature) 70.9 1.4 2.4 9 Teo 6.9 
Corn Stover Silage 80.7 18 1.8 6 9.5 5.6 
Digestible Constituents, Percent by Weight 
Digestible Protein | Total Digestible Nutrients 
Cattle | Sheep | Hogs | Poultry | Cattle | Sheep | Hogs | Poultry 
Corn, Shelled 5.2 ep 7.2 7.9 78.3 73.9 80.0 | 80.0 
Corn (ear) Chop. 4.8 by 6.2 68.6 75.6 70.2 
Corn Fodder (dried) 3.4 54.4 
Corn Stover (dried) PA el 53.4 49.8 
Corn Silage ed 11 17.5 17.4 
Corn Stover (silage) 9 9 10.4 10.1 


SEED TRADE 




















