Don’t hold your breath for a self-fertilising gene-edited crop

October 11, 2026 by Beyond GM

Image: Bigstock

Our latest Beyond the Headline briefing looks at the breathless promises of “self-fertilising” crops, and asks why we keep waiting for a fix that never arrives.

This summer, after weeks of heatwaves, wildfires and drought warnings, the government has stepped up its messaging to encourage every household to keep a supply of tinned food and bottled water in case of emergency. This is part of its wider Prepare initiative. There are many valid caveats and criticisms of this approach including the way it shifts the responsibility for national resilience away from government and onto individuals. A recent open letter to organised by Foodrise warns government is complacent and unprepared or future food emergencies.

Much of that fragility in our food system comes from how we grow our food. Modern farming depends heavily on synthetic nitrogen fertiliser. It’s made using fossil fuels and is expensive. Much of it ends up in rivers and seas, where it fuels algal blooms and “dead zones”. When prices spike or supply chains wobble, farmers and food prices feel it straight away.

Our latest Beyond the Headline briefing shows that for more than a century, scientists have been chasing a high-tech way out: wheat, maize and rice that make their own fertiliser, the way beans and peas do. Late last year, the headlines announced that it had finally happened, with crops that could “fertilise themselves”.

Our latest Beyond the Headline: Self-Fertilising Crops briefing looks at what lies behind those headlines. The research is real, but it is early-stage. The wheat was grown in pots, not fields. The other study worked in a lab plant, not a cereal. Even one of the lead researchers spoke of saving perhaps 10% of fertiliser, not abolishing it. And nitrogen is only part of the picture: farmers also rely on phosphate and potash fertilisers, which these crops would do nothing to replace. We’ve heard the same promise, for over a century. Research – and hype – has expanded in the last 50 years. There is still no self-fertilising crop a farmer can plant.

This “someday”, “in the future”, “eventually” focus of self-fertilising crops means that the solutions that already work get a fraction of the attention: rotating cereals with beans, peas and clover, cover crops, recycling manure, and smarter use of fertiliser. Farmers know how to do these things. What’s missing is a market, subsidy and supply system that rewards them for doing so.

A cupboard of tins might see a household through a few days of disruption. A food system built on healthy soils and diverse farming could see the country through far more. Our briefing sets out the questions everyone should be asking the next time a self-fertilising miracle crop makes the news.

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