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Maximizing wheat productivity with supplemental irrigation

Maximizing wheat productivity with supplemental irrigation
Left side: rainfed - Right side: with supplemental irrigation. Credit: International Center for Agricultural Research in the Dry Areas

A new ICARDA study shows how applying key agri-innovations can strengthen dryland rainfed production systems in the face of accelerating climate change.

The Middle East and North Africa (MENA) region predominantly relies upon rainfall to service its agricultural . Still, in today's environment, such reliance is increasingly risky for farmers in the region.

In Morocco, where about 85% of the wheat area is rainfed, a recent ICARDA analysis of four diverse rainfall growing seasons reveals that total rainfall is the key determinant of successful rainfed wheat yields. However, as climate change accelerates, increasing rainfall variability and weather shocks result in poor crop yields, unstable yield performance, and even complete crop failures, threatening across the country.

The rising frequency of droughts poses significant challenges to the economy, agriculture, and food security while also accelerating soil degradation and reducing soil fertility for future crops.

However, key ICARDA innovations such as resilient wheat varieties, supplemental irrigation, and adjusting sowing time have the potential to combat today's climate and man-made impacts.

The annual productivity for wheat averaged 1.85+0.63 t ha-1 from 2012 to 2022. Our recent findings indicate that, in farmer-managed fields, the average productivity of wheat can increase by at least 1.5t ha-1 in severe drought conditions with the adoption of appropriate variety coupled with the provision of life-saving supplementary irrigation, assuming at least a 50% yield improvement in farmer-managed fields based on the results achieved at experimental stations. This represents a significant potential improvement from the current national average, demonstrating the impact of targeted irrigation practices.

Analysis of the 2012-2021 FAOSTAT data shows that Morocco imports an average of 44% of its wheat grain to meet the country's needs. However, with the potential to increase average yields through precise supplementary irrigation, total annual production could rise by 23%, reducing imports by 35%.

ICARDA's research highlights that strategic innovations, such as supplemental irrigation and resilient crop varieties, can significantly improve in dryland regions. These advancements not only strengthen local food security but also decrease reliance on grain imports, fostering economic stability.

The future of food security in dryland regions hinges on our capacity to adapt and innovate. By adopting targeted , we can adjust to changing , boost crop yields, and secure a resilient and prosperous future for farmers and nations.

Provided by International Center for Agricultural Research in the Dry Areas

Citation: Maximizing wheat productivity with supplemental irrigation (2024, June 13) retrieved 22 July 2024 from https://phys.org/news/2024-06-maximizing-wheat-productivity-supplemental-irrigation.html
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