FieldX Sampling vs NDSU Nitrogen Calculator

FieldX Sampling™ is an in-field mobile app for soil sampling on agricultural fields. The app includes tools to create and update sampling journal entries, including the ability to add, move, and delete sampling points. FieldX Sampling capabilities: • Display field borders and sample points/zones. • Mark sampling points as completed and advance to next point with one tap. • Create new sampling journal entries. • Add new sampling points at GPS location. • Move sampling points to current GPS location. • Navigate to sample points with a tool to indicate direction and distance to a point from GPS location. • Upload changes to sampling journal entries. Additional benefits: • Work online or offline. • Get turn-by-turn directions to the field. • Set up sample grid in FieldX Office/VRT and navigate to the sample points in FieldX Sampling. • Import and Export points from FieldX Office/VRT to a SHP file, • Work with any lab you choose for soil testing. FieldX Sampling is part of the FieldX Platform, which is an agricultural software system that is used across the United States and Canada. FieldX currently supports grid sampling, zone sampling and composite soil sampling.

This application provides four NDSU crop nitrogen recommendation calculators for use in North Dakota sunflower, corn, 2-row malting barley, and spring wheat/durum, respectively. The research N-rate database underlying these calculators is from the many-years of field research conducted by Dr. David Franzen, Soil Extension Specialist at North Dakota State University, and others.  Nitrogen recommendation calculations are based on an economic production function that takes into account the yield response of the crop to added N, less the cost of the N. The recommendation is based not only on the yield increase from additional N, but the price of the commodity and the cost of N. Use of this app might help reduce total nitrogen fertilizer cost, increase nitrogen use efficiency, decrease pollution to the soil and water caused by overused nitrogen fertilizer, and thus improve the sustainable use of natural resources.