Feeding the world’s growing population
New Zealand’s reputation as a quality food producer is growing.
The Fertiliser Association of New Zealand promotes and encourages responsible and scientifically-based nutrient management.
Phosphorus 'availability' differs between the various soil types. This is due to the different minerals, organic matter and soil chemistry. The plant growth responses and the appropriate 'Olsen P' values for each of the different soils, have been calibrated using a very large number (thousands) of fertiliser response trials across New Zealand.