Meet our team of highly trained and qualified nutrient advisors

With over two decades of experience in the fertiliser industry, Corey has held senior roles as a field consultant and technical specialist since 2003. In 2012, he founded i-Fert with the vision of offering clients an independent, unbiased approach — ensuring access to a broad range of products and expert advice tailored to individual needs.

Corey now serves clients across New Zealand and Queensland, Australia’s sugar cane capital, where he has pioneered an industry-leading Soil & Plant Diagnostics service allowing for the precise identification of production-limiting factors both above and below ground.

Corey is highly qualified in Sustainable Nutrient Management and Sustainable Agriculture, and his work continues to set new benchmarks for efficiency and environmental stewardship in the agricultural sector.

With more than 20 years' experience in soil fertility, plant nutrition and nutrient management, Nathan combines strong scientific knowledge with practical, on-farm insight. Since joining i-Fert in 2015, he has helped farmers better understand what is happening below ground and translate that knowledge into more effective nutrient decisions.

Nathan holds an Honours degree in Horticulture, specialising in soil science, along with qualifications in Sustainable Nutrient Management. His approach starts with the soil by identifying the factors limiting plant performance, then developing practical strategies to improve nutrient efficiency, productivity and long-term farm profitability.

Scott is a third generation sugarcane farmer from Mackay, Queensland. He has worked on the family farm since the age of 14, slowly expanding the operation to double its size. Scott has also completed a stint as a miner and superintendent for Rio Tinto, and runs his own aerial spraying business.

Scott sees diversification, efficiency and continuous improvement as the way to counter price fluctuations and unpredictable weather. His experience with Corey Martin on his own farm led Scott to get directly involved in the i-Fert business. Scott heads up i-Fert Australia.

Mari is i-Fert’s Business Support & Accounts Coordinator, supporting the team’s day-to-day operations across accounts, administration and internal coordination to help keep processes organised and the wider team running smoothly. She is an Agricultural and Biosystems Engineer from the Philippines, bringing a professional background in agriculture that gives her a strong understanding of the sector.

Alongside her operational role, Mari manages i-Fert’s social media platforms and coordinates content across the business, helping the team communicate field activities, technical knowledge and farm insights clearly and consistently — supporting i-Fert’s connection with farmers across New Zealand and Australia.