To optimize crop and livestock operations in Ohio’s challenging climate, farmers need a whole-systems approach. Marília Chiavegato, a CFAES assistant professor in agroecosystems, leads a research lab focused on how plants, animals, the environment, and weather interact within agricultural systems. When examining this relationship, her team works to identify sustainable solutions that enhance productivity while minimizing environmental impacts.
A key aspect of Chiavegato’s research is forage diversification in grazing systems.
“We study how plants, animals, and nutrients like carbon and nitrogen cycle through the system,” she said. “The goal is to find a balance — a mix of forage species that boosts animal performance and system productivity while keeping environmental impacts low.”
Her team focuses on minimizing pollution and greenhouse gas emissions, a crucial part of sustainable agriculture. The lab staff also look at how specific plant species impact soil health and nutrient cycling, aiming to reduce harmful emissions such as ammonia and nitrogen runoff into water systems.
Ohio producers face several challenges due to unpredictable weather patterns. The state’s growing season is short, with wet springs, dry summers, and mild falls.
“Resilient systems are a must,” Chiavegato said.
In response, her lab staff is helping farmers adapt by introducing native, warm-season grasses to extend forage availability during summer droughts. The research team has also collaborated with farmers to improve grazing management, which has led to better soil carbon sequestration and enhanced meat quality.
A success story from this work shows how grazing improvements have paid off in higher meat quality. In one case, the adoption of better grazing strategies led to substantial increases in ribeye characteristics, such as a 64% jump in hot carcass weight and an improvement in marbling scores from 310 to 740.
The lab’s forage assessments and recommendations also help farmers make confident, climate-smart decisions.
“By providing low-cost, reliable forage analysis, we equip producers to fine-tune their strategies, track improvements, and minimize nutrient losses,” Chiavegato said.
Looking ahead, the lab’s team aims to continue shaping sustainable agriculture practices, helping Ohio farmers adapt to climate challenges while improving productivity and resilience.