Food security starts with soil that still works
Resilience isn't a stockpile. It's a diverse network of producers on healthy land.
Oliver de Groot, Organic Matters
4 min read · 12 August 2026
Food security is usually discussed as supply — do we have enough. The harder question is whether we'll still be able to grow it in fifty years. That depends on soil organic matter, water quality, pollinator populations and whether anyone under forty wants the job.
Organic systems make measurable deposits into all four. Organically managed soils build organic matter and store additional soil carbon — meta-analyses find gains of around 3.5 tonnes of carbon per hectare relative to conventional management where rotations include legumes and reduced tillage. Nitrate leaching falls sharply. Pollinator diversity is roughly 50% higher. And organic farms are, on average, more diverse in what they produce, which is itself a form of insurance.
Diversity of producers matters as much as diversity of crops. A region served by forty small and mid-sized growers recovers from a flood, a border closure or a price shock far faster than one served by two large ones. Aotearoa learned this the hard way in 2023.
The practical version: buy from more than one grower, buy in season, buy from your region when you can, and support the ones who are converting. Demand is the only thing that converts land.
Where this comes from
Next
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- The state of organics in Aotearoa — and what's holding it back$1.18 billion and growing 13% a year, on 0.6% of our farmland. The gap is the opportunity.