Step 1
We look at how your farm runs.
Farm size, irrigation type, water source, volumes and flow rates, the technology you use and who manages fertiliser now.


We design and install systems that apply liquid nitrogen through your centre pivot. Less leaching, a record of every application, no trucks on your paddocks.
43.53° S, 172.64° E · Christchurch, NZ
ScrollFertigation is applying liquid fertiliser through your irrigation system. Your pivot already covers every hectare it waters. We add a measured dose of liquid nitrogen to that water, so it goes on little and often, exactly where the water goes.
1:1000
Dilution ratio
100 L liquid N in 100,000 L water
19
Units of N per 100 L
Applied at 10 mm per hectare
20
Almost 20 years
Graeme's experience with fertigation
Why fertigation
Put your nitrogen through the water you're already applying: little and often, exactly where the pivot goes, with a record of every application.

Smaller, split applications the grass can use, with proof of where and when every application went. It can be incorporated in Overseer.

Less fertiliser, no spreading runs, and a short payback on set-up costs.

More even growth makes grazing easier to manage. One client saw more clover.

No compaction, no gates left open.
Step 1
Farm size, irrigation type, water source, volumes and flow rates, the technology you use and who manages fertiliser now.

Step 2
A system that fits how your pivots run day to day, and what you're changing this season or next.

Step 3
Your whole team learns the system on farm, with written instructions for new staff and delivery drivers.

Step 4
Every system comes with a service agreement. Running it should be as simple as booking a truck.


100 litres of liquid N (19 units of N) mixed into 100,000 litres of water at 10 mm per hectare is a dilution of about 1:1000.
Andy and Allan Grant started with one fertigation system on one farm in 2015. Once they'd run it, they asked for a second on their other dairy farm. Both systems are still running.
No trucks are needed to apply nitrogen to the farm, which reduces soil compaction and no gates are left open.


Meet Graeme
Graeme grew up on a sheep and beef farm in Moeraki, studied at Lincoln University and has worked with fertigation for almost 20 years. On any given day you'll find him on farm with a client or in the office designing their system.
No. The dose is tiny compared with the water: about 1:1000.
We start by looking at your irrigation type, water source and flow rates, then design to suit.
Your team, after on-farm training and with written instructions. It's designed to be as simple as booking a truck.
Yes. The system gives you proof of placement and application records.
It depends on your farm. Set-up costs pay back quickly through fertiliser and spreading savings; book an assessment and Graeme will work through the numbers for your farm.
Book a farm assessment and Graeme will talk you through your irrigation, your nitrogen and what a system would involve.
Tell us a little about your farm and Graeme will be in touch to arrange a time. Prefer to talk it through? Call or email, whichever suits you.