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.
AgResearch (Grasslands, Palmerston North) – Frank Li and K Betteridge
Concluded June 2013
Application of the nitrification inhibitor DCD is a promising technology for reducing N loss from grazed pastures, but its application over the whole farm may not be economically justified, especially on hills that require aerial application. Critical source areas (CSAs), such as stock camps, represent the areas of highest urinary-N deposition, highest N loss risk, and potential highest efficacy of DCD application in mitigating N loss.
This work was part of a larger Sustainable Farming Fund Project.
This paper was presented at the Massey University, Palmerston North, Fertilizer & Lime Research Centre’s 25th annual workshop: Advanced Nutrient Management: Gains from the Past - Goals for the Future (Eds L.D. Currie and C.L. Christensen. Occasional Report No. 25).