Biomass production, N uptake, and C:N ratio vary widely across the United States. The N in cover crop biomass will be released within a few weeks after termination, however, decomposition varies with soil moisture, soil temperature and C:N ratios.
A synthesis of 89 studies across six continents has helped clarify which agricultural practices hold water when it comes to helping soils soak up precipitation — a factor critical to mitigating floods, outlasting drought and stabilizing crop yields.
How can we manage cropland to improve soil health? To test and encourage adoption of soil health practices, the Soil Health Demonstration Initiative was launched as a collaborative effort of growers, UNL and NRCS. Now a network of farm research sites is providing valuable information from in-field studies.
Growers conducting on-farm demonstrations as part of the Nebraska Soil Health Initiative met with UNL and NRCS staff to share about what they were doing and learning on their farms. Their work offers valuable insights for other growers considering how they too can build soil health on their farms.
How well do cover crops control weeds and can they offset herbicide costs in corn-soybean cropping systems across the Corn Belt? That's the focus of a multi-state meta-analysis of 15 cover crop research projects.