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SeaPhos

SeaPhos

A granular fertiliser that improves soil health, nutrient uptake and environmental outcomes.

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Smarter Phosphorus Use for Healthier Soils and Cleaner Waterways

SeaPhos is a pioneering granulated fertiliser developed by AgriSea in partnership with Fertco, combining the rich nutrients found in seaweed with essential phosphorus, sulphur and calcium. Its controlled-release format provides sustained nutrient availability, stimulating root growth, enhancing soil biology, and improving nutrient cycling which supports both pasture productivity and environmental sustainability on your land.

SeaPhos' granular dicalcic phosphate ensures phosphate is released efficiently, maximising plant uptake while minimising nutrient loss to waterways. With a neutral pH of 6.6, it will increase low pH levels in soils, support soil organisms and won't damage seeds as they start to grow. It's also made with very low dust, which makes it safer and easier for pilots to apply from the air.

By improving phosphorus efficiency, SeaPhos helps reduce the risk of over-application, protecting our environment while optimising fertiliser use. AgriSea and Fertco's shared vision is to help farmers grow more while using less. This innovative collaboration delivers healthier soils, greener pastures and more productive, resilient farms.

How to Use

  1. Application Rate

    This will depend on soil test results but the average application rate is 300kg per hectare.

  2. Monitor

    Adjust application frequency according to your farm system, soil fertility, and production goals. Contact an AgriSea Area Field Consultant for tailored advice to optimise your results.

Application Methods

SeaPhos can be applied in multiple ways to suit the scale of your growing operation. Fine filtration will ensure no clogged lines or spray nozzles. Need help? Contact your local AgriSea approved applicator.

Spreaders
Drone
Plane
Helicopter
Find an AgriSea approved applicator

What our customers say

“When we started off, the cattle were getting lice and I don't get any of that now. They're big and fat. Their health has improved enormously. If you keep your stock healthy, you haven't got all these other problems, which is good because we have trouble getting a vet here in this area.”
Lynn Samuels, Highland Cattle, Dunedin

Evidence-based results

Improved by 35% in independent field trials Independent Research Study, 2024
Consectetur adipiscing elit increased animal performance by up to 28% Farm Trial Results, 2023
Sed do eiusmod tempor showed 42% improvement in overall health markers Farm Trial Results, 2023

Frequently Asked Questions

What is SeaPhos used for?

SeaPhos is a granular fertiliser designed to improve soil health, nutrient efficiency and pasture performance while reducing your farm's environmental impact.

How does SeaPhos improve nutrient efficiency?

Its controlled-release dicalcic phosphate ensures phosphorus is available to plants as it's needed, reducing losses to soil and waterways and enhancing natural nutrient cycling.

Is SeaPhos safe for soils and pastures?

Yes. With a neutral pH of 6.6, reduced dust fraction and no chemical residues, SeaPhos supports soil organisms and won't damage germinating seeds while also being safe to handle.

When should I apply SeaPhos?

Apply in spring or autumn for optimal pasture growth. Winter applications can be used strategically for pasture recovery or feed quality. Timing should align with periods of active growth.

What are the benefits of using SeaPhos?

SeaPhos improves soil health, supports root development, enhances pasture nutrition and digestibility, increases nutrient uptake efficiency, and helps minimise environmental losses from over-application of soluble phosphorous.

Ready to See the Difference?

Get in touch with AgriSea today to learn how our seaweed-based solutions can help you achieve better results.