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Large Soybean Plantability Tips - 3 Major Plant Manufacturers

This past winter, three major planter manufacturers evaluated our
2015 soybean seed for plantability. This was done knowing that a
considerable amount of 2015 Beck’s soybean seed would be larger than
normal and that the shape may be affected. Seed sizes evaluated were at
1950, 2250, and 2350 seeds per pound. These bigger soybeans occurred due
to the favorable late season growing conditions of 2014. I’m sure many
of you saw the same in your combine tanks!

Here are some suggestions for initial planter settings to help you achieve excellent drop and accuracy.

John Deere CCS Planters: Using
the standard three-row hole soybean disc, A42586 is suggested. Set CCS
tank pressures at 11 to 14 in. Meter vacuum will probably need to be at
12 in. for larger soybeans. ProMeters will likely require 1.5 to 2 times
the amount of talc for larger soybeans.

CNH 1200 Series Planters:
Accuracy of drop was very acceptable in all seed sizes and weights.
However, 30 in. row planting at high populations is speed sensitive,
meaning max ground speed of 5 mph. Use the 10045 seed disc with vacuum
at 17 in. of water, the singulator at 8, and baffle at 2 for your start

Kinze EdgeVac: Using
the 60 cell seed disc, GD14467 is suggested. A singulator brush setting
at 5 and vacuum setting of 10 are recommended. Your vacuum levels may
need to be adjusted up slightly depending on seed size.

Kinze Brush Type Meter:
There are two discs available, the black 60 cell disc (GA5794) for
“normal” sized beans and the dark blue 48 cell disc (GA6184) for seeds
in the 1400 to 2200 seeds/lb. range. If the seed size falls on or near
the split, typically you will need the larger 48 cell disc.

You should always add the appropriate seed lubricant as specified by
the manufacturer. Just as important, make sure lubricant is well mixed!
Graphite disperses well, but talc needs extra mixing efforts. Graphite
is a lubricant whereas talc is a drying agent. In some planter
situations, mixtures of talc and graphite may have to be used depending
on the relative humidity conditions at time of planting.

For more
Agronomic News from Denny Cobb, Certified Crop Advisor, please visit his
Agronomy Page on

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