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August 30, 2024
Resources related to
Nitrogen
Kseniya Kopna, Pexels
Nitrogen can help plants grow, but too much pollutes our rivers, lakes and groundwater. These resources can improve your understanding of how nitrogen flows through our environment, the drivers for regulation, and help you reduce nitrate leaching.
Showing 1 - 12 of 206 results
Technical Report
Measuring real time nitrate leaching from a Hawkes Bay onion Field
The primary objective of this project was to prove that successful real time ‘in situ’ nitrate measuring was possible using a nitrate sensor and that…
Guidance
Tech Note: Nitrate-Nitrogen Leaching in Horticulture
Two-page guidance from Ravensdown for nutrient management decisions/practices in horticulture, and the implications of these practices when combined with rainfall events resulting in drainage. Based…
Journal Article
The implications of lag times between nitrate leaching losses and riverine loads for water quality policy
Understanding the lag time between land management and impacts on riverine nitrate–nitrogen (N) loads is critical to understand when action to mitigate nitrate–N leaching losses…
Presentation
A Source-to-sink Contaminant Risk Framework To Support Water Quality Policy Across Scales
In the wrong place, or at excessive concentrations, nutrients (nitrogen and phosphorus) and sediment become contaminants. Along with pathogens, they require reduction to improve water…
Summary
Project Summary: Measuring Real-Time Nitrogen Losses in Vegetable Production
This article summarises the results of a Rural Professionals Fund project that aimed to find an accurate way to measure the amount of nitrate leaching…
Journal Article
Nitrogen fertilization effects on soil phosphorus dynamics under a grass-pasture system
Nitrogen (N) and phosphorus (P) are critical to pasture productivity; however, limited information is available on how the single and combined additions of N and…
Technical Report
Challenges and Opportunities for New Zealand Agriculture under Climate Change (2022 update)
Future climate is likely to have a major impact on the primary sector, and has the potential to drive major shifts in land use as…
Journal Article
Soil nitrogen treatment alters microbiome networks across farm niches
A farm is a collection of interlinked ecological habitats split by locations, including above-ground, below-ground, and animal-associated niches each harbouring unique microbiomes. We examined agricultural…
Presentation
Mitigation action prioritisation & resource tool for freshwater farm plans
Freshwater farm plans will soon be compulsory for all pastoral farms larger than 20 hectares as part of the Government’s Action for Healthy Waterways reforms.…
Technical Report
Measuring real time nitrate leaching from a tile drained Hawkes Bay onion field: Final report
The data showed a strong linear relationship between the N concentration measured by the sensor and in the grab sample (sensor N concentration = 1.09…
Technical Report
Collaborative Research Towards Best Practice Nitrogen Management in Asparagus Cropping: Final report
Key findings: • Current nitrogen fertiliser recommendations are based on limited trial work. • Nutrient deficiency symptoms are not common and careful fern and root…
Journal Article
The longevity of fencing out livestock as a method of decreasing contaminant concentrations in a headwater stream
Water quality can be improved by fencing off streams from livestock. However, the remedial effect of fencing can fail as livestock trample near stream areas.…