Many livestock and crop farmers have added a new word to their business vocabulary.  Alongside “silage,” “pickup,” and “section,” they are using the word “app.”
Wikipedia describes an app as application software that causes a computer (or mobile device) to perform useful tasks.
Growers can find agronomy-related apps to help them with just about any chore, and app development is being driven by grower use of these high-tech tools.
“Rapid adoption of mobile devices among farmers is incredible,” says Matt Snyder, product manager, digital marketing platforms for DuPont Pioneer. “With convenient apps, growers have practical solutions literally in their pockets, accessible anytime, anywhere.”
Highly sophisticated apps enable growers to record crop observations, including text, photos and field boundary information, on a phone or iPad. Users can then immediately share with others in the app or via e-mail.

Snyder shared several of the apps he frequently recommends for growers:

ID Weeds – A weed identification guide by University of Missouri Extension.