
On-farm actions - Nitrogen fertiliser
This guide explains how to cut nitrogen use, reducing nitrous oxide emissions on farms.
Woodhaven Gardens grows vegetables across 127 paddocks in Horowhenua, and Jay Clarke wanted to know where its nitrous oxide was actually coming from. In this case study Jay explains how the Clarkes worked with Massey University to find out.
Soil nitrogen testing, GPS-guided machinery and precision placement of fertiliser helped the business nearly halve its fertiliser use over three years. Jay is open about the trade-offs the family is still weighing between lower emissions and production.

See how much nitrogen your crop rotation could leach into the ground.

This resource outlines methods to reduce agricultural greenhouse gas emissions in New Zealand.

Learn how to plan, time and target nitrogen fertiliser so more of it ends up as pasture growth.

Learn about dairy farm emissions, their impacts, and ways to reduce them without affecting your profitability.

Discover how a North Waikato cropper cut nitrogen and emissions by switching to no-till maize.

Meet the Waikato dairy farmers using their numbers to cut emissions and stay profitable.

Learn about different on-farm solutions for reducing greenhouse gas emissions from dairy farms.

Explore actions New Zealand farmers can take to reduce greenhouse gas emissions effectively.

Understand climate event and variability trends for Horowhenua District.

Learn how Owl Farm cut biological greenhouse gas emissions over a ten year period.

Learn how to manage nitrogen fertiliser use for better pasture growth and environmental outcomes.

Explore the tools that help you map where your farm's emissions come from.