A Day in the Life of Scientist David Weindorf - soil scientist and agronomist

All plants need elements - like calcium, iron and magnesium - for healthy growth. And farmers need to know what the levels of these important elements are before the growing season. This information helps them make decisions about fertilization, or if they need to add organic matter. David Weindorf, a soil scientist and research agronomist at Texas Tech, developed a portable X-ray fluorescence spectrometer that gives rapid, accurate results about what elements are found in soil.