2003, Issue #10
from your Pioneer Sales
Representative:
Kingston
Feed & Farm
WHY INOCULATE?
Rhizobia bacteria
populations from previous soybean crops may NOT be at adequate levels to
ensure thorough, early nodulation of current crop. Early formation of nodules
on the main root is critical to efficient conversion of N in soybean plants.
Rhizobia are living
organisms that are affected by soil and environmental conditions. Some of
these conditions include-
·
Sandy, gravelly knolls and ridges that dry out
during hot, dry summers
·
Low organic matter levels (< 3.0)
·
Acidic soils (ph < 6.0)
·
Wet spots due to poor surface drainage or
sub-surface springs
·
Hot, dry seasons can significantly reduce
residual rhizobia populations
·
Rhizobia are subject to attack by other soil
organisms. The longer the rotation, the higher the chance of having reduced
populations
Some or all of the above can
contribute to less than ideal levels of rhizobia in areas within even the best
fields.
Applying inoculants on the
seed - or into the furrow - is the most effective and economical way to
provide conditions for adequate and early nodulation.
IS THERE A PAYBACK ?
Long term studies and data
from various public and private research sources, such as:
·
OMAF Web Site
·
Ohio State
University (5 year study)
·
Compilation of 9
years results from 243 sites across US and Ontario (Nitragin, Inc)
Have shown a consistent
increase in soybean yields on rotated soybean ground compared to uninoculated
soybeans.( Average 1.6 bu./acre). To look at the payback, consider this
example:
-
At FULL rate, Cell-Tech Soybean liquid inoculant costs
$2.19 per acre.
-
Assume yield is increased by 1.6 bushels/acre,
and beans sell for $7.00/bu.
-
That’s $11.20/acre of additional revenue.
That’s 5 times the return on the investment.
Is there a payback?
YES !!
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