Climate-Smart Wheat Production for Water Sustainability

Explore how climate-smart agriculture can improve wheat production in Türkiye’s Konya Closed Basin through drought-tolerant varieties, water-efficient agriculture, better soil moisture management, appropriate irrigation scheduling, and climate-informed farming.

RURAL INNOVATION

Mithat Direk

10/23/2026

Detailed golden wheat ears under a bright blue sky

Wheat is more than a crop; it is a cornerstone of human civilization and global food security. Cultivated across millions of hectares, it provides a major source of calories and nutrition for billions of people. Yet wheat production varies considerably across regions, reflecting differences in climate, agricultural technology, and access to natural resources. Behind these differences lies an important question: How much water does it take to produce a tonne of wheat?

This question has become increasingly urgent as climate change intensifies droughts, rainfall becomes less predictable, and competition for freshwater grows. In water-stressed agricultural regions, including Türkiye's Konya Closed Basin, declining groundwater levels threaten the long-term sustainability of wheat production and rural livelihoods.

Wheat yields depend on several interacting factors, including crop genetics, soil fertility, rainfall, temperature, irrigation, fertilizer application, pest management, mechanization, and farmers' technical knowledge. Consequently, differences in productivity cannot be explained by climate or water availability alone.

Western European countries such as France, Germany, and the United Kingdom benefit from relatively favourable growing conditions in many wheat-producing areas. Adequate seasonal rainfall, fertile soils, improved varieties, and advanced farming practices help farmers achieve high yields, often with limited supplementary irrigation. Rainfall supplies a substantial proportion of the crop's water requirements, reducing dependence on irrigation infrastructure.

Egypt presents a contrasting production system. Despite its arid climate and limited rainfall, the country achieves substantial wheat yields through irrigation, particularly using Nile Basin water resources. Improved varieties, fertilizers, and intensive crop management help compensate for environmental constraints, although irrigation places additional demands on already valuable freshwater supplies.

The distinction matters because equal yields do not necessarily indicate equal resource efficiency. A rain-fed farmer in a humid region and an irrigated farmer in an arid region may each produce seven tonnes of wheat per hectare, yet their dependence on irrigation water can differ considerably. Their energy costs, production risks, and environmental impacts may also vary.

Understanding these differences requires looking beyond yield per hectare to water productivity, irrigation efficiency, and the sustainability of water sources. Ultimately, wheat production must be evaluated not only by how much grain is harvested, but also by the water resources consumed and the environmental costs incurred.

Water Productivity: Measuring Wheat Success Beyond Yields

Water productivity offers a more meaningful way to evaluate wheat production, particularly in regions facing water scarcity. It measures the amount of grain produced per unit of water consumed or used, depending on the calculation method. For example, one farm producing six tonnes of wheat per hectare with 2,500 cubic metres of water achieves higher water productivity than another producing eight tonnes with 5,000 cubic metres. Although the second farm records a higher yield, it produces less grain per unit of water.

Global research indicates substantial variation in wheat water productivity, influenced by climate, soil conditions, irrigation methods, crop varieties, and management practices. Zwart et al. (2010) reported values ranging approximately from 0.2 to 1.8 kilograms per cubic metre across the crops and production conditions examined. Research also suggests that irrigation can significantly increase wheat yields, but higher production does not necessarily translate into proportional improvements in water productivity. Yang et al. (2025) reported an average wheat-yield increase of 32.47% associated with irrigation, highlighting the importance of considering both productivity gains and additional water requirements.

International experience reinforces this principle. New Zealand and Ireland benefit from favourable rainfall in many wheat-growing areas, while France and Denmark combine suitable growing conditions with improved varieties, balanced fertilization, mechanization, crop protection, and advanced farm management. Egypt demonstrates how irrigation can support productive wheat cultivation under arid conditions, although its production system depends heavily on Nile Basin water. Saudi Arabia illustrates the risks of relying on intensive irrigation from non-renewable groundwater reserves. These contrasting experiences show why wheat yields cannot be compared meaningfully without considering their water sources and environmental costs.

For Türkiye, these lessons are particularly relevant. Wheat production across Central Anatolia depends substantially on rainfall, which is often limited and irregular. Although irrigation can increase yields, expanding groundwater-based irrigation in the Konya Closed Basin risks accelerating aquifer depletion. Agricultural policy must therefore balance productivity improvements with long-term water security.

The priority should be to improve crop varieties, soil moisture conservation, planting schedules, nutrient management, and irrigation efficiency where irrigation is appropriate. Farmers also need reliable climate information and incentives to adopt sustainable practices. Ultimately, Türkiye's wheat strategy should aim not simply to harvest more grain per hectare, but to produce more wheat sustainably from every unit of water available.

Water Productivity: Measuring Wheat Success Beyond Yields

Water productivity offers a more meaningful way to evaluate wheat production, particularly in regions facing water scarcity. It measures the amount of grain produced per unit of water consumed or used, depending on the calculation method. For example, one farm producing six tonnes of wheat per hectare with 2,500 cubic metres of water achieves higher water productivity than another producing eight tonnes with 5,000 cubic metres. Although the second farm records a higher yield, it produces less grain per unit of water.

Global research indicates substantial variation in wheat water productivity, influenced by climate, soil conditions, irrigation methods, crop varieties, and management practices. Zwart et al. (2010) reported values ranging approximately from 0.2 to 1.8 kilograms per cubic metre across the crops and production conditions examined. Research also suggests that irrigation can significantly increase wheat yields, but higher production does not necessarily translate into proportional improvements in water productivity. Yang et al. (2025) reported an average wheat-yield increase of 32.47% associated with irrigation, highlighting the importance of considering both productivity gains and additional water requirements.

International experience reinforces this principle. New Zealand and Ireland benefit from favourable rainfall in many wheat-growing areas, while France and Denmark combine suitable growing conditions with improved varieties, balanced fertilization, mechanization, crop protection, and advanced farm management. Egypt demonstrates how irrigation can support productive wheat cultivation under arid conditions, although its production system depends heavily on Nile Basin water. Saudi Arabia illustrates the risks of relying on intensive irrigation from non-renewable groundwater reserves. These contrasting experiences show why wheat yields cannot be compared meaningfully without considering their water sources and environmental costs.

For Türkiye, these lessons are particularly relevant. Wheat production across Central Anatolia depends substantially on rainfall, which is often limited and irregular. Although irrigation can increase yields, expanding groundwater-based irrigation in the Konya Closed Basin risks accelerating aquifer depletion. Agricultural policy must therefore balance productivity improvements with long-term water security.

The priority should be to improve crop varieties, soil moisture conservation, planting schedules, nutrient management, and irrigation efficiency where irrigation is appropriate. Farmers also need reliable climate information and incentives to adopt sustainable practices. Ultimately, Türkiye's wheat strategy should aim not simply to harvest more grain per hectare, but to produce more wheat sustainably from every unit of water available.

Conclusion

Wheat production must be evaluated not only by yields per hectare but also by the water required to achieve them. International experience demonstrates that high productivity depends on climate, crop varieties, soil conditions, and effective farm management, while excessive irrigation can undermine long-term sustainability. For Türkiye, the Konya Closed Basin illustrates the urgent need to balance agricultural profitability with groundwater conservation. Drought-tolerant varieties, improved soil moisture management, appropriate irrigation scheduling, and climate-informed farming can help farmers maintain yields while reducing pressure on scarce water resources. However, technological improvements must be supported by effective groundwater regulation and cropping decisions aligned with local water availability. Policymakers should prioritize water productivity and economic returns per unit of water alongside conventional yield indicators. Ultimately, the goal is not simply to produce more wheat, but to secure reliable food supplies, protect farmers' livelihoods, and preserve water resources for future generations. Sustainable wheat production begins with recognizing that every drop has an economic and environmental value.

Please note that the views expressed in this article are of the author and do not necessarily reflect the views or policies of any organization.

The writer is affiliated with the Department of Agricultural Economics, Selcuk University, Konya-Türkiye and can be reached at mdirek@selcuk.edu.tr

Climate-Smart Wheat Production for Water Sustainability

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