Seeding Rate Calculators

 
  From the May 15, 2017 Issue of Agri-News
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 A seeding rate calculator can be a boon when it comes to determining seed requirements.

“Establishing a crop with an optimal plant population is an important step towards meeting harvest yield goals,” says Mark Cutts, crop specialist, Alberta Agriculture and Forestry (AF). “The advantages of an optimal plant population include the potential for higher yields, uniformity of the plant stand and, for some crops, less competition from weeds.”

AF’s website has two seed requirement calculators - the Cereal Seeding Calculator and the Peas, Pulses and Other Large Seeds Calculator - that can help with ensuring optimal plant populations.

“These calculators require the user to input various pieces of information,” says Cutts. “These include desired plant density (plants per square foot), germination rate (per cent), seedling mortality (per cent) and 1000 kernel weight (grams). Once these are inputted, the calculator will determine a seeding rate in pounds per acre. It’ll also provide information that will allow a producer to calibrate their seeder (seed weight per 100 feet of travel or number of seeds per foot of row).”

Cutts says producers using the calculators will notice that the interaction among the required inputs will impact the seeding rate. “For example, a change in the 1000 kernel weight can have a significant impact on the calculated seeding rate. As a result, when using seeding rate calculators it’s important to ensure that the inputs accurately reflect the seed being planted.”

The Canola Council of Canada also has new seeding rate calculator to help producers determine a seeding rate (pounds per acre) for canola. “The inputs required for this calculator include target plant density (plants per square foot), estimated survival (per cent) and thousand seed weight (g),” says Cutts. “It should be noted that the thousand seed weight should be provided on bags of certified canola seed.”

For more information on seeding rate calculators, contact the Ag-Info Centre at 310-FARM (3276).

Contact:
Alberta Ag-Info Centre
310-FARM (3276)

 
 
 
 
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For more information about the content of this document, contact Mark Cutts.
This document is maintained by Ken Blackley.
This information published to the web on May 4, 2017.
Last Reviewed/Revised on May 8, 2017.