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Hybrid Corn has now proved its worth and is definitely here to stay. The benefits of planting Hybrid Corn over 
open pollinated corn are much larger yields, both in grain and for ensilage purposes, strong roots, and evenness of 
ears on the stalk. Stalks stand up much better. 

This year we will again feature Colorado grown State Registered and sealed Hybrid Corn. This means that the corn 
is grown under rigid rules and supervision. Stock seed must be of known and proven parentage. Fields have to 
be isolated from all other corn and carefully detasseled at the proper time. 
Germination must be high to rate Blue Tag. 
Colorado Grown Corn is adapted to this region. 
COLORADO EXPERIMENT STATION TESTS 
Our state extension service has tested Hybrid Corn over a four-year period. The open pollinated corn used as a 
check was Minnesota 13 corn. 




AVERAGE YIELDS AT FORT COLLINS, 1937 TO 1940. 

Yields Shelled Corn 
in Bu. per Acre 



No. 
Relative Bars. Days of Silk Pet. Suckers Per Cent 
Maturity Test Hybrid Check Hybrid Check Hybrid Check of Check 
Colorado 45 ere Slightly Late 2° 87.0 83.0 8.6 Sail 127.6 109.8 116.2 
@oloradowm bile see Same as Check 3 83.2 S287 SED Dies 126.0 AG 112.9 
Colorado 125) eseeie see. Harly 3 81.2 82.7 6.4 etl 119.8 111.6 107.3 


During these years, it must be remembered that the first frosts were later than the average date. 
The average from 1889 to 1937 has been September 18th. 
The first frost in 19387 was October 5th; in 19388, October 18th; in 1939, September 30th; and 1940, October ist. 
Therefore, for grain raising purposes, the later maturing corns might not always mature. 
In the Fort Collins area, Wisconsin 570 and Wisconsin 625 should do well fer ensilage. 
In a Western Slope test, conducted on the Montrose-Delta county line, Wisconsin 570 and Wisconsin 455 outyielded 
open pollinated Crawford Yellow Dent and Colorado 13 by a good margin. Wisconsin 455 matured earlier than the 
field varieties, Wisconsin 570 at about the same time. 
1947 PRICES 
Flat Grain, Medium, $9.00 per bushel; Flat Grain, Small, $7.50 per bushel; Round Grain, Medium, $6.50 per bushel; 
Round Grain, Small, $6.50 per bushel; Round Grain, Large, $5.50 per bushel. 


COLORADO 125 (Wisconsin 455) 
One of the best to use for higher altitudes. 
COLORADO 151 (Wisconsin 750) 
A Yellow Corn. Regarded as a 110-day corn. Usually 
matures grain in northern Colorado. Yields well. Excep- 
A Yellow Corn that is regarded as maturing in 100 days. tionally well for grain, it has outyielded Colorado 13 under 
It will usually mature grain in northern Colorado when 
planted as late as June Ist. It is about ten days earlier 
than Minnesota 13 or Colorado 13. 
CORNFUME 
A few drops placed on the end of an ear of sweet corn 
will keep out the worms. 
Vo. pint Wazine os.,.iaihde a APRs OR rae aiets 2s eae Bie 60c 
A pintascth det. tse eee eee cies. Goede eee 95c 
A PP li Gators nn vicina crane ciostanudrapestoreiecdierate tateveniROnete se siran eile lies trian 90c 
actual farm conditions as much as 40%. 
COLORADO 175 (Wisconsin 625) 
Yellow Grain. Regarded as a 115-day corn. Usually ma- 
tures grain in northern Colorado. A good yielder and 
excellent for ensilage. 
Our grower advises not to plant Hybrid too early. In the 
northern part of the state, May 5th to 15th, is the best 
time to plant. 
All corn should be treated before planting. Barteldes 
Corn Treatment discourages pheasants, crows and cut- 
worms. 
Semesan, Jr—Reduces seed rotting, improves stands and 
increases yields. 

