MSU research targets more efficient irrigation for Michigan farms

Michigan State University researchers are developing irrigation tools designed to help growers use water and energy more efficiently as dry conditions increase the need for supplemental irrigation.

July 2026 ranked among the driest Julys on record in many parts of Michigan, according to National Weather Service data. The conditions can restrict plant growth and increase growers’ reliance on irrigation when rainfall is insufficient.

Younsuk Dong, assistant professor and irrigation specialist in the Michigan State University (MSU) Department of Biosystems and Agricultural Engineering, and his team have developed tools aimed at making irrigation decisions more precise.

Among them is the Low-Cost Monitoring System (LOCOMOS), which uses in-field sensors to track soil moisture, leaf wetness and other environmental conditions. Software analyzes the data and sends irrigation recommendations to growers through a mobile app.

Applying too little water can reduce soil moisture and stunt plant development, while overirrigation can increase disease pressure, saturate soils and contribute to nutrient runoff.

The financial implications are significant. Less than 10% of Michigan agricultural land is irrigated, but that land generates nearly 40% of the state’s farmgate value, Laura Campbell, senior conservation and regulatory relations specialist with Michigan Farm Bureau, said.

“Irrigation equipment and the power to run it are big investments, so MSU’s work to help farmers make the most of their irrigation is very important,” Campbell said.

Efficient irrigation can also help growers limit wasted fertilizer and pesticide inputs while protecting water quality.