Soil testing is an essential tool for managing phosphorus, potassium and other nutrients in Iowa and many states. The units ...

The University of Delaware (UD) has rated soils in terms of the likelihood of profitable responses to additions of phosphorus (P) and potassium (K) from fertilizers, manures, and other soil amendments ...

Should the high school auditorium building committee have tested for contaminated soil before work began? It's an easy question to ask now that work has begun and contamination found. Of course, those ...

By reviewing and updating soil tests regularly and following research-based recommendations, farmers can improve fertilizer efficiency, maintain soil fertility and maximize profitability while ...

This photo shows a yellowing young leaf, though its veins remain green, indicating that this plant is hungry for iron. Plants do tell us when they are hungry — with poor or distorted growth, and with ...

This is my periodic, obligatory soil test article. Don’t let your initial knee jerk reaction prevent you from reading! This topic isn’t as “sexy” as organic gardening, pollinator plants or even cherry ...

Along with the development of new instrumentation, the test procedure itself was also standardized. By “walking” the potential probe toward the current probe and graphing the measurements, the ...

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Different soil types have their pros and cons. While your backyard soil may be just fine as is for native plants and vegetables, most soils need a little help from amendments, like organic matter and ...