Field Operations Guide

Plan and execute spraying, fertilising, and attachment operations with GPS guidance

Overview

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Before You Start

Field Operations requires some initial setup. Make sure you have:

  • ✓ Created your Enterprise and Property
  • ✓ Mapped your paddock areas with boundaries
  • ✓ Added machinery (tractors) and sprayers, spreaders, or attachments
  • ✓ Added products to your catalogue (for spraying and spreading)
Hub

The Field Operations Hub

From the Home screen, tap Field Operations to access the hub. You’ll see five navigation cards and a summary of your saved operations.

  • Create New Plan a new spraying, fertilising, or attachment operation with the step-by-step wizard
  • Saved Operations View, edit, and execute saved operation plans — badge shows how many are waiting
  • Reports View completed operations with GPS paths, product usage, and cost breakdowns
  • Alffi™ Crop Advisor Photo-based pest and disease identification with product recommendations (1 credit)
  • Saved Advice Review past Alffi™ Crop Advisor analyses with photos and recommendations

Three Operation Types

Each operation type has its own wizard flow tailored to the equipment and products involved.

Spraying

Apply liquid products with a boom sprayer. Supports multi-product tank mixes.

  • 7-step wizard
  • Multi-product cocktails
  • W‑A‑L‑E‑S mixing order
  • Nozzle/pressure/speed config

Fertilising

Spread granular products with a spreader. Single product per operation.

  • 6-step wizard
  • Gate opening & speed settings
  • Hopper load calculations
  • Bout-width guidance

Attachment

Mowing, slashing, ploughing, cultivating — no products required.

  • 5-step wizard
  • Select attachment & tractor
  • Choose paddocks
  • GPS tracking only
Spraying

Spraying Wizard — 7 Steps

The spraying wizard guides you through planning a multi-product spray operation from equipment selection to review.

  • Step 1: Operation Type Select Spraying from the operation type list
  • Step 2: Select Equipment Choose your sprayer and the tractor it’s mounted to. The sprayer’s working width, tank capacity, and calibration data are used throughout
  • Step 3: Nozzle & Pressure Select nozzle colour/size, operating pressure (bar), and target speed. The app calculates the application rate (L/ha) automatically from the nozzle chart
  • Step 4: Select Areas Tick one or more paddock areas. The app calculates total hectares (or acres)
  • Step 5: Select Products Add one or more products from your catalogue for a tank mix. Adjust the rate per hectare for each product
  • Step 6: W‑A‑L‑E‑S Mixing Guide Products are sorted into the safe mixing sequence with exact volumes per tank load (see below)
  • Step 7: Review & Save Full summary with equipment, areas, products, rates, quantities, and estimated cost. Tap Save Operation
Spraying wizard with multi-product selection and W-A-L-E-S mixing guide

W‑A‑L‑E‑S Mixing Order

When spraying multiple products, mixing order matters. The app automatically sorts your products into the correct sequence.

W

Water

Fill tank 30–50% with clean water, start agitation.

A

Agitate & Condition

Add water conditioner (if needed), then dry formulations — WG, WP, and powder products.

L

Liquids

Suspension concentrates (SC), soluble liquids (SL), and liquid fertiliser.

E

Emulsifiable Concentrates

EC products — add one at a time. Many insecticides and fungicides are EC formulations.

S

Surfactants & Stickers

Non-ionic wetters, oils — always added last.

Per-tank calculations: The mixing guide calculates exact volumes of each product per tank load based on your paddock area and tank size. It also shows how many full tanks you’ll need plus any partial final tank.

Fertilising

Fertilising Wizard — 6 Steps

Plan a spreading operation with a single granular product, from equipment selection to hopper calculations.

  • Step 1: Operation Type Select Fertilising
  • Step 2: Select Equipment Choose your spreader and the tractor it’s mounted to
  • Step 3: Select Product Select a single granular product and set the application rate in kg/ha
  • Step 4: Select Areas Choose paddocks to fertilise. Total area and product requirements are calculated
  • Step 5: Spreading Guide Configure gate opening, target speed, and view per-hopper coverage calculations
  • Step 6: Review & Save Summary with quantities, area, cost, and equipment. Tap Save Operation

Executing an Operation

Once saved, execute your operation with GPS tracking, A‑B guidance, and real-time speed feedback.

1

Equipment Check

Confirm your tank is filled (spraying) or hopper loaded (spreading), equipment is calibrated, and nozzles are clear. Tap to advance when ready.

2

Travel to Field

The app shows your field on the map. Tap Navigate for turn-by-turn directions. When you arrive, advance to enter the field.

3

A‑B Line Setup (Optional)

Set up parallel guidance lines for systematic coverage. Place Point A at one edge, drive straight ~100m, then place Point B. The app generates guidance lines across the entire field at your equipment’s working width. Zoom presets (50m–800m), heading-up toggle, and re-centre button help you navigate.

4

Operating

The main working state. Choose between map-dominant (GPS path with A‑B lines) or metrics-dominant (speed, coverage, product data) layouts. Your GPS path is drawn in real-time. Land-row highlighting marks every Nth A‑B line blue for easy counting.

5

Pause, Refill & Resume

Use Pause for lunch or weather delays (timer stops). Use Refill when the tank runs empty (GPS continues). All previous GPS traces are preserved across pause/resume/refill cycles — every segment combines in the final history.

6

Complete

When all paddocks are done, tap Complete. The app records total work time, area covered, product volumes, cost calculations, and weather conditions. The completed operation appears in your Reports with full GPS history.

Speed Feedback

Stay On-Rate

During spraying and spreading operations, the app compares your current ground speed to the target speed and shows whether you’re applying at the correct rate.

  • Green Checkmark — On Target Speed is within 10% of target. You’re applying at the correct rate
  • Orange Tortoise — Too Slow You’re over-applying product. Speed up to match the target
  • Orange Hare — Too Fast You’re under-applying product. Slow down to match the target

Speed feedback uses your device’s GPS and displays in km/h or mph based on your unit preferences. It only appears for sprayer and spreader operations (not attachments).

Multi-Area Operations

If you selected multiple paddocks, the app guides you through each area in sequence.

1

Complete the First Area

Finish operating in the first paddock, then tap Exit Area.

2

Travel to Next Area

Tap Travel to Next Area. GPS tracks your travel between paddocks.

3

Resume Operating

Enter the next paddock and continue. Repeat until all areas are done, then tap Complete.

Tip: When your tank runs empty, use the Refill state rather than completing and starting a new operation. This keeps all GPS data in one record and gives you a single report for the entire job.

Alffi™

Alffi Crop Advisor

Use Alffi™ to identify pests and diseases in your crops from photos, then get product recommendations and a complete spray plan. Requires Pro subscription + 1 Alffi credit.

  • Capture Photos (1–5) Photograph affected crops with your camera or select from your library. The photo tips banner shows how to take effective diagnostic photos
  • Add Context (Optional) Select crop type (wheat, barley, canola, pasture, etc.) and growth stage for improved accuracy
  • Pest & Disease Identification Each finding shows name, confidence badge (green >85%, orange 70–85%, red <70%), pressure/severity level, and description
  • Product Recommendations Products you already have in stock that treat the issue, plus suggestions for products to purchase
  • W‑A‑L‑E‑S Spray Plan If multiple products are recommended, the results include a complete mixing plan with volumes
  • Take Action Save Advice for your records, Create Spray Job with pre-populated products, Create Purchase Task, or Share with Agronomist
Alffi Crop Advisor identifying pests and diseases from crop photos

Viewing Execution History

Completed operations are saved with full GPS traces and product data for compliance and review.

GPS Path

See exactly where you drove, overlaid on the map with satellite imagery.

  • All segments combined (across pause/resume/refill)
  • Swath visualisation at working width
  • Identify missed strips or excessive overlap

Metrics & Costs

Track coverage, timing, product usage, and costs per operation.

  • Area covered and total work time
  • Product quantities applied per hectare
  • Combined cost breakdown
  • Weather conditions at completion

Tips for Field Operations

Before You Start

Preparation saves time in the field.

  • Mount equipment before creating the operation
  • Check product stock for total area
  • Verify Alffi credits if using Crop Advisor
  • Calibrate your sprayer or spreader

During Execution

Make the most of GPS guidance and speed feedback.

  • Use A‑B lines even in irregular paddocks
  • Watch speed feedback to stay on-rate
  • Use land rows to count passes
  • Refill, don’t complete, when tank is empty

After Completion

Review your work for quality assurance.

  • Review GPS path for missed strips
  • Compare calculated vs actual product usage
  • Save Alffi advice for compliance records
  • Check withholding periods on the label

Troubleshooting

No equipment available for this operation

Ensure you have the correct equipment type added (sprayer for spraying, spreader for fertilising, attachment for attachment operations). Check that the equipment is mounted to a tractor in Equipment → Mount Status. Verify the equipment isn’t archived.

A-B lines aren’t generating

Ensure Points A and B are at least 100m apart. Check that the working width is set on your equipment. Try placing points again if the heading seems wrong.

Speed feedback not showing

Speed feedback only appears for sprayer and spreader operations, not attachments. Ensure your sprayer or spreader has a target speed set in its calibration. GPS speed requires movement — it won’t show while stationary.

GPS path is missing after refill

All GPS traces are preserved across pause/resume/refill cycles. If the path appears incomplete, check you used Refill (not Complete) between tank loads. The execution history map combines all segments.

W-A-L-E-S mixing guide shows wrong volumes

Check the application rate on each product — rates are per hectare. Verify the tank capacity is correct on your sprayer in Equipment → Sprayers. Confirm the correct areas are selected, as total hectares affect volumes.

Alffi Crop Advisor won’t analyse

Check you have a Pro subscription (Settings → Subscription). Ensure you have at least 1 Alffi credit (Stock → Credits). Verify you have an internet connection — Alffi requires cloud processing. Try taking clearer photos with better lighting.

Ready to Get Started?

Download Alffi and plan your first field operation today.

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