Germain Seed Company, 326-330 South Main St., Los Angeles, Cal. 2 9 
Double the Yield of Your Crops With 
NITROQ1LN CULTURE 
THE GREATEST AGRICULTURAL DISCOVERY OF THE CENTURY! 
The germs have been discovered, and are to be had in unlimited quantity, that 
enable leguminous plants to collect nitrogen from the air and give it to the earth 
thereby replenishing poor and exhausted land with a copious supply of nitrogen’ 
and also making good soil more productive. Does away with artificial manure; 
saves time and labor; is convenient to handle, effective in results, and at the mini¬ 
mum of cost. Don’t fail to try it and be convinced. 
and WhiCh SCie "° e h S s disoovered fertilizing soil at a minimum cost, making poor land good 
one ff enora,ous . cr °P s - E/ery one knows that the air is teeming with nitrogen and that nitro^fn is 
to note tha/Safts^avfvevv {“A lant lfe; yet notwithstanding the amount of nitrogen available it is surprising 
to note that plants have very little power even to secure a bare existence from what nitrogen they gather from 
the air, and heretofore it had to be supplied by fertilizers. This 
method is too costly for the average farmer, hence many exhausted 
fields are planted annually, with the result that a vast proportion of 
country produces little more than the seed back. Science has at last 
found the remedy, and farmers need not worry about poor crops in 
the future. The germs have been discovered that extract nitrogen 
from the air and. feed it to the plant. In this connection it is well to 
remember that so far no germs have been discovered for any other 
class excepting the legumes, or pod-bearing plants, consequently any 
crop that follows a leguminous, one that has been inoculated the sea¬ 
son before, will show a great yield, generally from two to six times 
more than if it had been sown on a soil that never had been treated 
with nitrogen culture. Thus can be seen the advantages derived 
to the farmer from its use. 
Comparative Yields on Succeeding Crops 
The more nitrogen your alfalfa or peas adds to your soil the bigger 
the following crop. This is the chief function of Nitrogen Culture 
Note the test made by the Kansas State Agricultural College on 
crops following alfalfa. 
Original Yield 
Wheat 
Oats 
Potatoes 
Yield per acre 
per acre after alfalfa 
15 bushels.30bushels... 
37 bushels...78bushels... 
52 bushels.. 81 bushels... 
Percentage of gain 
.100 
. 110 
. 75 
How Nitrogen Culture Helps the fruit-Qrower 
Inoculated Garden Peas 
Allowing for the fact that fruits are the leading product of south¬ 
ern California, representing a heavy in- 
, , . , vestment of capital, a larger acreage, and 
the highest value of crop, it stands to reason that the introduction of Nitrogen Cul¬ 
ture is of the utmost importance to the owners of citrus and deciduous fruit orchards. 
Appreciating that green manuring is one of the most efficacious and economical 
methods of enriching- the soil —supplying valuable elements of plant-food, and when 
plowed under, rendering the soil^ friable and more receptive of moisture — it follows as 
a natural sequence that any ingredient which will increase at merely nominal cost 
the quantity of nitrogen to the soil, possesses elements of strength appealing to 
owners of orchards. The method of application is simplicity itself, consisting in in- 
ociilating the seed that is about to be planted as a crop to turn under as green manure. 
This is accomplished by using cotton as a carrier for the nitrogen¬ 
gathering bacteria and then allowed to dry, rendering the same dor¬ 
mant and inactive. In this way it is readily handled as an article of 
commerce. 
These dry cultures are accompanied with necessary packages of 
chemical foods, which, when mixed in a solution according to direc¬ 
tions, produce vast numbers of bacteria. The seeds moistened with 
the solution before planting cause the germs to form abundant 
nodules on the roots, bringing profuse growth to the plants and adding 
nitrogen to the soil. 
To investigate this fact, the following from the Year Book of the 
National Department of Agriculture clearly indicates what has 
already been practically demonstrated by the leading investigators 
in the field: 
"The immense yields of wheat following alfalfa or clover are easily 
understood when it is realized that there has actually been added to 
the soil a certain definite amount of nitrogen in such form that the 
wheat can be benefited by it. Thus it will be seen that it is worse 
than useless to attempt to grow any leguminous crop without being 
certain of the presence of the bacteria which enables the plant to fix 
free nitrogen. It cannot be too strongly emphasized that unless the 
bacteria tubercles are present, the leguminous crop is of absolutely 
no more benefit to a soil than wheat or potatoes. tfninoculated and Inoculated Field Peas 
