Show Notes
How much nitrogen does your next crop really need, and where is that nitrogen coming from?
In this episode of An Eco Farmer’s Discovery, Ewan Campbell and Stephen Brunton revisit a discussion about nitrogen, crop residues and soil biology after a farmer challenges their previous claims with detailed production figures. Using the farmer’s wheat and oat rotation as a case study, they work through the numbers, explore the potential role of crop residues in building soil organic matter, and explain why they believe farmers need to understand what is happening beneath the surface.
The conversation looks at soil testing, carbon levels, nutrient availability and the conditions needed for soil biology to function. They also revisit an example soil test from Taranaki to discuss nutrient imbalances, aluminium, boron and calcium, alongside the importance of measuring changes over time. The episode expands into the relationship between soil organic matter, farm profitability, crop quality and nutrient density, with examples from farming experiences and the practical lessons that can be learned by testing, observing and measuring.
In this episode: A farmer’s challenge to EcoFarm’s claims about nitrogen and soil biology
Breaking down the nitrogen requirements of a wheat and oat rotation
How crop straw could contribute to soil organic matter and nitrogen cycling
Why the starting condition of your soil matters
Understanding soil carbon, humus and organic matter
How soil testing can reveal nutrient imbalances and limiting factors
The relationship between aluminium, boron, calcium and other nutrients
Why crop residues need the right conditions for biological decomposition
What earthworms, fungi and cyanobacteria contribute to soil processes
How to test and measure changes in soil over time
The potential relationship between soil organic carbon and farm profitability
Why crop quality, nutrient density and storage life deserve attention
Lessons from a long-term soil improvement example in Taranaki
Why farmers should measure results rather than rely on assumptions Our E-Book!https://www.ecofarmaotearoa.nz/download-our-ebook/Listen To An EcoFarmer’s Discovery:https://open.spotify.com/show/3wIgUUghlsKIje76E5tjBA?si=b4aa009579a34ac1
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