Heavy spring rains in Southwest Michigan are underscoring the role of conservation practices in handling wetter planting seasons, Michigan State University researchers say. Phil Robertson, director of MSU’s Long-Term Agroecosystem Project, told Brownfield that the region is not seeing less precipitation overall but is getting larger, more intense storms. MSU’s work at the Kellogg Biological Station is focused on which management practices help fields cope with those heavier events.
Robertson says the Kellogg Biological Station in Hickory Corners has recorded heavy totals this spring; the site has received more than early-March runoff and repeated downpours that have totaled over 15 inches of rain since the beginning of March. 15 inches of rain is the accumulation Robertson cited as demonstrating how concentrated spring rainfall is affecting field conditions. He noted the pattern is not just more rain but precipitation arriving in fewer, larger events.
Researchers at the station compared fields under different management and found clear contrasts in how water moved across the landscape. Areas using cover crops and reduced tillage showed much faster infiltration and less visible runoff after intense storms. cover crops and no-till were the practices Robertson pointed to when describing which systems held up better during heavy downpours.
Differences by management
In fields managed conventionally, Robertson said MSU teams documented notable soil erosion and surface water flow that exposed bare ground and moved topsoil downslope. Those conditions have already pushed some growers to postpone planting; Robertson estimated delays of up to two more weeks in places where soils remain saturated and unstable. planting delayed two weeks is the immediate operational impact he warned could affect spring acreage and timelines.
Research and management implications
MSU’s conservation research is intended to translate these observations into practical recommendations for Michigan growers facing wetter springs, identifying which combinations of practices reduce erosion and preserve planting windows. The differences observed this season provide concrete field-level evidence for managers weighing cover crops and no-till against conventional approaches.
Fields at Kellogg Biological Station serve as current examples of how management choices affect water behavior during intense storms, and MSU researchers will continue tracking outcomes as planting progresses. Growers in Southwest Michigan are adjusting schedules and management decisions this spring in response to saturated soils and the station’s reported rainfall totals.
Photo - cdn.brownfieldagnews.com
