For the last 100 years, ever since German chemists Fritz Haber and Carl Bosch figured out how to pluck fertilizer out of thin air with brute-force chemistry, farmers have relied on an imperfect product to make their plants grow: fertilizer. Production of the stuff burns through 3 percent of the world’s natural gas annually, releases tons of carbon into the atmosphere, and runs off into rivers and streams and aquifers. Relying on fossil fuels to grow food was never exactly sustainable.
Like sulphur, Mg is moving into the foreground
No one is taking anything away from “The Big Three.” Clearly, nitrogen, phosphorus and potassium (N, P and K) have a direct and powerful influence on yield, and must be managed with great skill.
Increasingly, though, we’re learning that secondary nutrients and micronutrients are also worth paying attention to.
Swiss researcher Matthias Stettler set up his soil compaction sensors for a unique live show for farmers at the recent Compaction Action field day in Ontario. In this video Stettler talks about the impact of compaction and some of the options producers have to help counteract it. Click here.