The Manitoba Pulse & Soybean Growers (MPSG) Bean App Plant Stand Assessor simplifies the following steps for more efficient recording, unit conversion and calculation of plant populations.
The free app is available at the Apple Store or Google Play.
A web-based app is also available at: http://mpgabeanapp.com/.
Use a fixed area for solid-seeded crops seven to 14 rows, such as a Hula Hoop or quadrat (square foot or square metre) to count plants.
You can either enter the diameter of the Hula Hoop or the area of whatever measure you are using, and then choose five to 10 random, but representative areas of the field to conduct plant counts. Adjust the number of counts (sample size) based on the field size. To cover more ground, enter the field from different edges.
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Take note of areas such as headlands, depressions or knolls that may cause higher or lower plant stands.
Count and record the number of plants within each selected area.
Calculate the average number of plants for the field and compare to the optimum plant stand.
One hundred and forty thousand to 160,000 soybean plants per acre is equivalent to 3.2 to 3.7 plants per square foot, 35 to 40 per square metre and 14 to 16 within a 28.4-diameter Hula Hoop.
From the Manitoba Pulse & Soybean Growers’ May 31 Bean Report.
