Brian Arnall, Precision Nutrient Management Extension Specialist for Oklahoma State University, gave a presentation to InfoAg 2013 attendees this year, where he went through the dozens of apps available for helping you manage your farm. Featured here are five of the apps he recommended for calculating different areas of crop production, from how much nutrients you may be losing, to determining the right planting population. Do you use any of these apps, and if so, what do you think of them? Leave your comments below.

See our first gallery: 7 apps for scouting

See our second gallery: 6 apps for identifying weeds, pests and more

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