Learn when to sample corn plants, how to interpret results and how to use tissue testing data to improve your nutrient ...

Agricultural soil testing is critical to determining soil’s nutrient concentration and variability across your fields. It is ideal to test your fields’ soil at least every two to three years to inform ...

Discover why you should test your soil in January, with insights from a garden expert. Get ahead of the growing season by ...

Soil scientist Andrew Margenot holds a jar of soil gathered from Menard County, Illinois in 1948. The University of Illinois professor said he rediscovered the "church of soil" when searching an old ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The Contingency Soil Sampler was a ...

For decades, soil management has relied on sparse field sampling and averaged recommendations. While effective in relatively uniform landscapes, this approach breaks down in real-world fields where ...