Soil nutrients are not even. They are not even across a field and they are not even with soil depth. Nutrients can differ drastically just a few inches of soil away. This is true even in ...

Before applying fertilizer or any other soil amendment, it's a good idea to see what the soil already contains. That way you ...

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 ...

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 ...

In the early stages, Uganda's soils were considered fertile and little was done to improve productivity in a systematic way. However it was soon realised that crop yields in Uganda declined under ...