Journal article

Opportunities to improve nitrogen use efficiency in an intensive vegetable system without compromising yield

Helen Suter, Arjun Pandey, Shu Kee Lam, Rohan Davies, Rifaath Hassan, David Riches, Deli Chen

Journal of Environmental Quality | WILEY | Published : 2021

Abstract

Intensive vegetable cropping systems rely heavily on nitrogen (N) inputs from multiple synthetic and organic fertilizer applications. The majority of applied N is lost to the environment through numerous pathways, including as nitrous oxide (N2 O). A field trial was conducted to examine the opportunities to reduce N input in an intensive vegetable system without compromising yield. Treatments applied were control (no N), manure (M, 408 kg N ha-1 from chicken manure), grower practice (GP, 408 kg N ha-1 from chicken manure + 195 kg N ha-1 from fertilizer), and 2/3 GP (two-thirds of the total N input in GP), all with and without 3,4-dimethylpyrazole phosphate (DMPP). Nitrogen recovery in the GP..

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Grants

Awarded by Australian Centre for International Agricultural Research


Funding Acknowledgements

This research was funded by Australian Centre for International Agricultural Research (Grant SMCN/2014/044). We acknowledge TrACEES platform at the University of Melbourne for analytical support.