With fertilizer being one of the most expensive crop inputs to help reach your yields, making sure it stays put for your plants to take it up is essential. Unfortunately, this is not always as easy as it sounds. At Manitoba Ag Days last month, Bryce Geisel, senior agronomist with Koch Agronomic Services, offered a presentation on the number of reasons why nitrogen doesn’t always stay put on your field and what growers can do to help ensure that it does.