Feeding the world’s growing population

New Zealand’s reputation as a quality food producer is growing.

Optimising food production

Over the next 50 years farmers around the world will need to produce more food than has been grown over the past 10,000 years.

Best use from a limited resource

Fertiliser helps farmers produce food efficiently by replenishing the soil. But fertiliser needs to be used responsibly.

Responsible and sustainable nutrient management

The Fertiliser Association invests in research and tools to ensure farm profitability while minimising nutrient losses to the environment.

The Fertiliser Association of New Zealand promotes and encourages responsible and scientifically-based nutrient management.

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Review of research on pasture yield responses to fine particle application of fertiliser in New Zealand

Jeff Morton, Russell Tillman, Allan Morton
Completed 2018


There have been several claims that because of more efficient uptake and reduction of losses, nitrogen (N) and phosphorus (P) in a fine particle application (FPA) form results in improved pasture yield responses compared with application in the standard granular form. A total of 22 structured trials comparing pasture and wheat yield responses from FPA and dissolved liquid with granular forms were reviewed as part of this study. Of eight statistically analysed trials investigating FPA, only in the two small-scale trials was a significant pasture yield to FPA over a granular product reported. Not one of the nine trials comparing fully dissolved liquid and granular forms of N and P showed an advantage to the liquid form. It was concluded that currently there was insufficient experimental evidence to recommend the use of FPA fertilisers over the standard granular form of application.

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The full report has been published in the New Zealand Journal of Agricultural Research.

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The Fertiliser Association of New Zealand and Dairy NZ funded development of the Nutrient Management Adviser Certification Programme (NMACP). This industry-wide certification aims to ensure that advisers have the learning, experience and capability to give sound nutrient advice.

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1 March 2024

The Fertiliser Association of New Zealand recently updated its Fertiliser Use on New Zealand Dairy Farms booklet to ensure farmers get the best value from fertiliser applied and to align the advice with the Code of Practice for Fertiliser Nutrient Management.

28 June 2023

Dairy farmers milking cows on a farm area of more than 20 hectares are required to record synthetic nitrogen use on their dairy platform land, including a zero-kg record if no synthetic nitrogen is used. The regulations require data to be submitted by 31 July each year for the preceding year ended 30 June. 

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