Manaaki Whenua


Manaaki Whenua - Landcare Research

Manaaki Whenua - Landcare Research is New Zealand's leading provider of solutions and advice for sustainable development and the management of land-based natural resources.

Manaaki Whenua - Landcare Research includes teams of researchers with skills relevant to the Centre in agricultural greenhouse gas emission measurement, carbon exchange and inventory development, soil science, lifecycle assessment and social science.



Landcare Research



Assessment of the application of gibberellins to increase productivity and reduce nitrous oxide emissions in grazed grassland

Emissions of nitrous oxide from grassland systems are attributable largely to the use of nitrogen fertilisers and the excreta deposited by grazing animals.

There is increasing interest in using gibberellins as a naturally-occurring growth promotant of herbage to reduce the use of nitrogen fertilisers while leading to similar or greater increases in dry matter.

In a study commissioned by the NZAGRC and carried out by Landcare Research, the conslusion reached is that the use of gibberellins with reduced addition of nitrogen fertiliser has the potential to reduce nitrous emissions from grazed grassland. However, acceptance of widespread use of gibberellins will be dependent on cost benefit analysis for farmers.

Download the In Press publication

  1. pdf NZAGRC_LCR_Gibberellins Review 2015.pdf (0.34MB)

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