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LandWISE – Promoting sustainable land management

Carbon Calculator

This is a prototype emissions calculator built to compare emissions from the different farm management systems we are implementing in our Carbon Positive Trial. It is very Beta!! See the disclaimer a the bottom of the page. We’d love people to try it out and give us feedback.

🌱 Carbon Accounting Calculator

Compare greenhouse gas emissions across cropping management scenarios

🏡 Farm & Property Information
👤 Consultant & Evaluation Details
🌱 Crop & Area
Per-hectare rates (fertiliser, fuel, agrichemicals) are multiplied by this area. Livestock head and electricity kWh are entered as totals.
🔍 Analysis Filters (optional)
Include operations on or after this date.
Include operations on or before this date.
Leave blank for all crops.
🔄 Management Scenarios

Rows are assigned to one of these scenarios. CSV rows whose scenario name does not match are flagged and left out.

💾 Session
🌾 Fertiliser and Lime

Rates are kg of product per hectare. Choosing a listed product fills its type and analysis. Type sets the field emission factor: nitrogen types use kg N, lime and dolomite use kg product.

CSV columns: Date, Crop, Scenario, Product, Type, Rate (kg product/ha), N%, P%, K%, S%

⛽ Fuel Use (diesel)

Diesel litres per hectare per pass. Total litres = L/ha x passes x area cropped.

CSV columns: Date, Crop, Scenario, Operation, Fuel use (L/ha), Number of passes

🐑 Livestock Grazing

Head is the total number of animals grazing the block (not per hectare). Emissions = head x per-head annual factor x days / 365.

CSV columns: Date, Crop, Scenario, Livestock type, Emission source (enteric / excreta / all), Head (total), Duration (weeks)

🧪 Agrichemicals

One row per active ingredient. Manufacturing emissions use a per-category factor unless a factor override is entered.

CSV columns: Date, Crop, Scenario, Product, Type, Active ingredient, AI concentration, Rate (L or kg product/ha), Unit (g/L, g/kg or %; default g/L), Factor override (kg CO2-e/kg AI, optional)

⚡ Electricity

kWh = hours x kW for the whole machine (not per hectare). The grid factor is chosen by the year of the date.

CSV columns: Date, Crop, Scenario, Machine, Operating hours, Kilowatts

📊 Emissions Results
📋 Report
PNG, JPEG or GIF up to 500 KB. Defaults to the LandWISE logo.

  • Electrify Hawke’s Bay EXPO
  • Carbon Positive Update
  • 2026 Winter Cover Crops
  • 2026 – Food Quality Maize
  • Soil Health for Profit – James Hunter
  • Soil Health for Profit – Charlie White
  • Soil Health for Profit – Josh Wing
  • Soil Health for Profit – Pranoy Pal
  • Soil Health for Profit – Olivia Webster
  • Soil Health for Profit – Dan Bloomer
  • Soil Health for Profit – John Evans
  • Soil Health for Profit – Bill Ritchie

RECENT POSTS

  • Electrify Hawke’s Bay EXPO
  • Carbon Positive Update
  • 2026 Winter Cover Crops
  • 2026 – Food Quality Maize
  • Soil Health for Profit – James Hunter

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