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Soil Health LabsAuthor: Soil Health Labs
The Soil Health Labs are located in the Environmental Health Sciences Department in the School of Public Health at the University of South Carolina. That may be surprising to most, especially since the University of South Carolina has no Ag School! Our mission is to promote soil health, not only as something thats good for the farmer and the environment, but we also want to highlight soil health as a public health tool. Think about it. Healthy soils and healthy crops, mean healthy farmers and consumers, never mind an ever-improving environment. One idea we are embracing is that of Regenerative Farming where we embrace the idea that if farmers change the way they manage the soils, they can actually improve, or regenerate environmental conditions through less disturbance, keeping soils covered with residue or canopies, keeping live roots I the soil year round and be reintroducing animals into the whole system. While we cut our teeth promoting soil health through video and social media (Soil Stories; Under Cover farmers: Science of Soil Health; Merit or Myth; Growing Resilience) we do have several research and outreach projects that we are doing with farmers in South Carolina. Language: en Genres: Education, Natural Sciences, Science Contact email: Get it Feed URL: Get it iTunes ID: Get it |
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New Research Reveals Why Fertilizer Efficiency Depends on More Than Nitrogen Rates and Soil Chemistry
Episode 79
Tuesday, 8 July, 2025
In Part 2 of our series with Dr. Bhupinder Farmaha, we go deeper—literally. Dr. Farmaha joins us again to talk about what’s happening below the topsoil and why it matters more than ever in nutrient decision-making. From soil testing at deeper depths to assessing the biological activity of soil microbes, Bhupinder's research is showing that one-size-fits-all recommendations just don’t cut it anymore.He shares a bold finding: only 50% of cotton production sites in his trials respond to nitrogen application. That insight could shake up fertilizer recommendations in a big way. Bhupinder also dives into chicken litter studies, the promise and risks of micronutrient buildup, and the long-term effects of organic amendments on sandy South Carolina soils.Highlights include:Working with USDA partners to integrate biological indicators into soil testsChicken litter vs. synthetic fertilizer: trade-offs and recommendationsHow climate-smart practices can stabilize yields in unpredictable weatherRethinking seed selection in light of resilient management systemsThe episode ends with a look at where this work is headed—toward more holistic, systems-based nutrient management. Bhupinder makes a strong case for moving beyond chemistry alone and embracing biology and farmer experience as critical parts of the fertility equation.Resources Mentioned in This EpisodeCotton, Country Conservation: An 8-Year Case Study in Regenerative Agriculture (Following SC Farmer Sonny Price's path of reducing input costs, increasing organic matter, and saving over $2.5 million): soilhealthlabs.com/projects/cotton-country-conservation
