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Terry Daynard

@terrydaynard.bsky.social

572 followers 233 following 272 posts

Ontario Grain Farmer; former Exec VP, Ontario Corn Producers' Assoc; former professor of crop science and later associate dean, University of Guelph; former CEO, Ontario BioAuto Council

Posts Replies Media

Terry Daynard @terrydaynard.bsky.social · 12/07/2025

There are reports from ON showing both SOC increases, and not (more commonly the latter), with CC usage. The results from this 2024 survey of 500 farms (sampling to 30 cm) is very informative. On average, no CC effect. (Boundaries for categories of soil organic matter depend on soil texture.)

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Terry Daynard @terrydaynard.bsky.social · 02/04/2025

A good article about the confusing world of 'regenerative agriculture' and consumer interest. www.foodnavigator-usa.com/Article/2025...

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Terry Daynard @terrydaynard.bsky.social · 27/03/2025

This is an outstanding review for those interested in using increases in soil organic matter to sequester carbon. Note especially this comment which describes a flaw common to many measurements of differences in SOM.

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Terry Daynard @terrydaynard.bsky.social · 16/02/2025

Interesting. A provincal survey of >500 farms in Ontario showed no effect of cover crops, or use of reduced tillage, on soil organic matter content. However, the presence of perennial forages in rotation, and use of pastures (the "no disturbance" tillage option), did increase SOM.

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Terry Daynard @terrydaynard.bsky.social · 10/02/2025

This is an excellent paper that I'd missed earlier. I've long been of the opinion that comparative crop productivity can explain much of comparative differences between no-till versus conventional (inversion) tillage in soil organic matter accumulation. academia.edu/12012163/Car...

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