Water productivity metrics could reshape EU crop viability, Rabobank says

Water may be moving from an irrigation line item to the bargaining table as climate volatility and proposed European Union resilience measures raise the prospect of tradable water rights. A recent Rabobank assessment warns that crops with the highest financial returns could gain better access, to the detriment of lower-value commodities.

In this market-driven landscape, regional crop viability would be governed by a single metric: Economic Water Productivity (EWP), or the gross financial return generated per cubic meter (€/m³) of irrigation. While this all remains under consideration, the dynamic could potentially create a hierarchy across the fresh produce sector, reallocating regional land use and reshaping the supply chain.

Agriculture is a major driver of freshwater use in the EU, accounting for one-third of total abstraction in the region and up to 70 percent in Mediterranean countries. Additionally, roughly 25 percent of NUTS2 regions (with 800,000 to three million inhabitants) in the EU face chronic scarcity, where demand from agriculture, industry, and households exceeds sustainable supply.

The EU Water Resilience Strategy (2025) sets non-binding targets to reduce water consumption by 10 percent across all sectors by 2030. The framework builds on the Water Framework Directive, the continent’s main law for water protection since 2000.

Stricter regulations, such as abstraction caps, higher water pricing, or allocation schemes, may be introduced if targets are missed.

The winner takes all—the water

Rabobank’s Water Scarcity: How stronger governance could reshape crop competitiveness in the EU report ranks commodities by their EWP index, placing berries and protected-culture operations (production systems using greenhouses, high tunnels, or shade houses) at the top.

Berry production generates an estimated $73,224 to $79,920 (€67,800 to €74,000) per acre-foot of irrigation, according to the analysis. Greenhouse and controlled-environment agriculture generate an estimated $39,960 to $79,920 (€37,000 to €74,000) per acre-foot.

Indoor, hydroponic, and closed-loop greenhouse systems can use the resource up to three times as efficiently as open-field production. Recycling drainage water could also help these operations manage regional allocation limits, Rabobank says.

“Fresh fruit and grapes would be relatively well protected by their higher economic productivity, but citrus and olives would face stronger impacts due to their lower productivity and high share of production in irrigated systems in water-scarce regions,” the research warns.

With these results, the report expects investment to continue flowing into greenhouse operations and high-density berry production in Southern and Western Europe, where higher revenue density could allow growers to absorb rising fees or acquire additional water allocations.

Another hurdle for citrus growers

As if disease pressure and contracting yields weren’t enough of a struggle for citrus growers, the crop ranks near the bottom of the EWP pyramid, generating about $3,348 (€3,100) per acre-foot of irrigation water, along with olives. The report says their comparatively low revenue could leave producers vulnerable, particularly in stressed basins with tradable rights or strict allocation caps.

In that scenario, citrus and olive producers could face competition from more profitable berry, table grape, and greenhouse producers. This would also bring sour news for domestic growers, as supply could become increasingly reliant on trade.

“A broader pool of exporting countries, including South Africa, Egypt, Morocco, and Argentina, makes substitution easy, thus buffering potential market impact,” the report says.

Broadacre crops, including grains, oilseeds, and sugar beets, generate less than $1,396 (€1,200) per acre-foot, Rabobank notes. The report says irrigated production of those crops could become economically unviable, potentially freeing the resource for fruit and vegetable production.

*All images are referential via Unsplash.

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