Dairy
More Efficient Nitrogen
Trusted local expertise
Experience matters
Proven Results
Better soil, better plants, better stock
WELCOME TO MainFert
Your Nutrient Management Partner
Mainfert is a well-established fertiliser supplier offering innovative products and sustainable solutions to meet modern nutrient and biostimulant needs. Our experienced advisors focus on long-term partnerships, providing flexible advice tailored to your farming requirements.
From soil testing to custom fertiliser blends, we’ve got everything covered for your success.
Innovative Products
We work directly with manufacturing partners to develop products for the best results and value suitable for South Island conditions.
Local Expertise
Receive advice and recommendations from our experienced nutrient advisors who understand your specific regional and production needs.
Personalised Solutions
We don’t offer one-size-fits-all solutions. Our advisors create personalised nutrient plans to optimise your soil, plants, and animal needs.
Mainfert prides itself on focusing on the client, the farming system, the soil and the long term. We like to think of ourselves as providing solutions to a whole range of challenges facing today’s primary producers.
There is no “silver bullet” product out there – just good innovative advice based on research and experience. Whether your farming system is more traditional, or you are moving to a more regenerative and biological system, we will meet your soil, pasture and animal need.
Many will know us as Mainland Minerals and with over 30 years supplying nutrient solutions to South Island farmers we rebranded to Mainfert mid 2020 to better reflect what we do and who we are.
We want to help farmers to achieve their financial and environmental goals through their biggest asset, their soil. We have a unique range of fertilisers and Mainfert prides itself on focusing on the client, the farming system, the soil and the long term.
Mainphos Range
Mainphos Range
Learn moreFine Particle Fertiliser
Fine Particle Fertiliser
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What Our Client's Say
We’re proud of the relationships we have fostered and the results we’ve helped clients achieve.
Tony & Julie Dobbs
Many animal ailments can be linked back to trace element deficiencies. We take comfort in the knowledge that we are providing the very best foundation for top animal performance by ensuring their diet comprises of top-quality pasture which is underpinned by a full suite of essential trace elements.