When AAFC science coordinator, Scott Anderson, and AAFC technician, Roger Henry, began the AAFC Plowdown Challenge in 2023, they weren’t quite sure what to expect and how producers would react. But after receiving lots of positive response they decided to launch version 2.0.

The concept in 2024 is similar to last year. They are planting the Mountain Gem potato variety on a field at the AAFC Harrington Research Farm, and farmers are encouraged to guess what the yield will be after harvest and grading this fall. The field was planted with red clover last summer and plowed last fall. Again, the potatoes will be grown without the use of fertilizer. But there’s yet another twist – they will spread manure in the field this year.

“The manure adds a little wrinkle to the challenge this year,” says Anderson “Manure contains a range of nutrients, and if properly applied, it can improve soil structure and water holding capacity to help plants to grow.”

While Anderson and Henry don’t expect farmers to stop using fertilizer altogether, they are trying to demonstrate how much yield they can actually achieve by just using nutrients in the soil from a properly managed previous rotational crop.

Last year, the actual potato yield after harvesting the #AAFCPlowdownChallenge fields at the AAFC Harrington Research Farm on Prince Edward Island was 169 hundredweight per acre. That is compared to the provincial average of 311 hundredweight per acre of potatoes in 2023. 

Prince Edward Island cattle farmer, Paul Smallman, was the winner of the inaugural challenge with the closest guess of 177 hundredweight per acre. Might we see a back-to-back winner or will a new farmer take the title in 2024?

Farmers can send their guesses to Scott Anderson by email at scott.anderson@agr.gc.ca or through X (Twitter) at @peiscooter before June 1, 2024.

Source:  Agriculture and Agri-Food Canada-Atlantic