66 
THE NITRAGIN CO., INC., 
~~ 
uly 2 | 
This photo of NITRAGIN 
test plots at a University 
Experiment Station, taken 
July 22, shows heavier 
growth and darker color 
due to good inoculation. 
Weeds are gaining rapidly 
on the thin, less vigorous 
stand of uninoculated soy- 
beans. 


By September 1, weeds had com- 
pletely smothered the  nitrogen- 
hungry crop that was not inoculated. 
NITRAGIN that cost 12c an acre 
made this difference. 
On fertile land, uninoculated legumes 
may look about as good as an in- 
oculated crop—but remember, 
legumes without inoculating bac- 
teria must get their nitrogen by rob- 
bing the soil; inoculated legumes 
get theirs from the air. 

One Way to Help Farmers Produce for Victory 
Sell move NITRAGIN 
Four-fifths of the air is nitrogen .. . vital element needed now 
to increase crop production. The one practical way to make this 
nitrogen available for plant growth is through legumes inocu- 
lated with effective strains of nitrogen-fixing bacteria. An acre 
of well-inoculated sweet clover, it is estimated, can gather as 
much nitrogen as is contained in 1,000 or more pounds of com- 
mon mixed fertilizer. 
This important ability of clover, alfalfa, peas, soybeans and 
other legumes depends on the presence of the right legume 
bacteria. That’s why it is important that every planting of 
legumes be inoculated with NITRAGIN. NITRAGIN contains 
only selected, tested strains of bacteria produced in the largest, 
most complete laboratory of its kind in the world. 
3830 N. Booth 

Your Protection! 
The name NITRAGIN is a registered trade 
name. It identifies the oldest, most widely 
used brand of inoculation. When customers 
ask for NITRAGIN, be sure to supply them 

with NITRAGIN 
other inoculants. 
do not confuse it with 
St., MILWAUKEE, WIS. 
SEED TRADE 
