Field Master: Agricultural GPS

FieldMaster is a GPS farm-navigation and farm-management app. It brings field guidance, a Field Management System (FMS), farm records and planning together on your phone.

Use it while spraying, fertilizing, sowing, spreading fertilizer, mowing, cultivating, harvesting or carrying out other field operations. Choose A-B guidance for parallel passes, curve guidance for irregular boundaries, or Plan mode to organize the route. In Plan, choose to guide around the field perimeter first and then line by line, or go directly line by line. Row-crop guidance helps keep repeatable passes between rows. See your position, distance from the line, worked area and coverage to reduce overlaps and skips. FieldMaster does not automatically steer your tractor.

Create and manage fields by drawing boundaries manually, using GPS measurements or importing data. Edit boundaries, measure plots, group fields, assign crops and seasons, and keep lease and operation details together. The Field Management System helps organize fields, crops, machinery, inventory, work history and farm documents.

Record passes and treatments, add notes, save dates and conditions, and assign operations to fields and crops. Add work manually to plan a future operation or document completed work. Treatment records can include product, dose, comments, weather and season history. Export data, create backups and generate PDF reports for fields, crops, treatments and completed work.

Manage livestock alongside field work. Keep individual animal and group records, log health events and treatments, track breeding, insemination, pregnancy and births, record milk and feed, manage grazing and set reminders.

Field observation and agronomic tools include soil-sample records, satellite NDVI reports, local weather, rainfall monitoring and forecasts. NDVI can help identify areas for closer inspection, but it does not diagnose a problem. Delta T can support the assessment of spraying conditions; it never replaces the product label or an on-site evaluation.

Plan fertilizer applications with the fertilizer planner and NPK calculator. Track profitability, inventory and machinery, and review the costs and results of field operations. Headlands help plan turns at field ends; tramlines organize repeated passes and controlled traffic.

Use phone GPS or external receivers connected through USB, Bluetooth or NMEA. RTK workflows and NTRIP corrections are available when supported by the receiver, correction service and connection. Accuracy depends on equipment, signal, Android settings, terrain and operating conditions. Check the displayed position before work.

Depending on country or region, additional tools may include agricultural market prices, pest alerts, plant-protection registers, geoportal layers, parcel boundaries, orthophotos and soil information. Availability depends on local data sources.

Farm data is stored locally unless you choose to export, back up or share it. Fields, drives, crops, treatments, notes and reports are not publicly visible by default.

GPS and agronomic information is advisory. Before spraying or carrying out any treatment, assess actual field conditions and follow the product label and local regulations. Trial and subscription details are shown in the app and on Google Play.