Production side. Crops: Corn, Wheat, Soybeans, Sunflower, Barley. Fields are between 30 ha - 100 ha.

When 4 G coverage is reliable, I fix my base station by RTK; otherwise, I record raw data and run a PPK solution against the nearest CORS station. About 30 minutes of observation is usually enough to obtain centimeter-level absolute coordinates. With the base established, I use the rover to survey 5–10 aerial GCP targets distributed around the site. After the mapping flight, I process everything in the office: the rover observations are post-processed against the fixed base in Emlid Studio, and the corrected GCP coordinates are imported into Agisoft Metashape for photogrammetry, following the USGS workflow in this guide (don't get confused about the name) https://pubs.usgs.gov/publication/ofr20211039 My clients run a mix of guidance systems—John Deere SF3, RTK, Trimble, and others. Because their operators choose harvest or seeding directions on the fly (there’s no controlled-traffic farming), they don’t request pre-defined guidance lines. Contour lines alone are usually sufficient for their needs. For variable-rate seeding and fertilizer, however, I must derive slope maps and plant-available-water estimates, so the high-accuracy elevation model is the cornerstone product. All subsequent agronomic layers are generated from that DEM.

6 year experience. My field of work is precision agriculture. Self-taught in QGIS, SAGA and R. Using ardusimple F9P GPS to do mapping works, and a phantom 3 Advance for drone mapping. Currently forced to use Maps made easy apps as flight planning because dronedeploy or Pix4D Capture Pro left behind my drone years ago.

I would love to get a RTK drone with better optics, but buying technology is too expensive around here (Argentina), so ROI of equipment is extremely low.