Earth's rocky layers are mysteriously low in nitrogen compared with carbon and argon. A scientific team explored our planet's molten youth using advanced quantum mechanical simulations, revealing ...

NPK, pH, soluble salts, texture, organic matter and Pb ppm are the data points that thrill me at this time of year. Yes, I’m talking about measurements of nitrogen, phosphorus and potassium in ...

Nitrogen is one of the primary nutrients critical for the survival of all living organisms. Although nitrogen is very abundant in the atmosphere, it is largely inaccessible in this form to most ...

Optimal nitrogen and sulfur rates for annual forage grasses part of Montana State University research project.