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June 26, 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 149 results
Technical Report
Enhancing Farm Assurance – A White Paper
Assurance systems are one of the cornerstones of the New Zealand economy and agribusinesses – ensuring compliance with regulations, enabling international trade, ensuring safety of…
Summary
A Foot in the Door to the Alternative Protein Market
Developing a pea and fava bean protein market in New Zealand would have high environmental gains, finds new research – but who pays for the…
Technical Report
EU Green Deal: Impact on New Zealand’s Land-based Primary Producers
Several areas of focus for the EU Green Deal are likely to pose significant challenges for New Zealand’s export sectors, not only directly in the…
Journal Article
Reference conditions and threshold values for nitrate-nitrogen in New Zealand groundwaters
Management of groundwater quality is assisted by an understanding of reference conditions, which describe the concentration ranges expected for key substances in the absence of…
Journal Article
Linking the uptake of best management practices on dairy farms to catchment water quality improvement over a 20-year period
Intensive land use, such as dairying, can impair water quality. Although many guidelines exist on how to mitigate the loss of dairy-associated contaminants from land…
Video
Can green crops capture enough nitrogen for vegetable growing?
Nitrogen fertiliser use is becoming increasingly restricted and expensive, so vegetable growers are looking for new methods to manage the high nitrogen demands of their…
Technical Report
Spring milling wheat as a ‘nitrogen scavenger’ in the North Island
The use of wheat in the farm system should be considered as an effective nitrogen (N) mitigation technique. Wheat as an N scavenger crop does…
Guidance
Using variable rate irrigation to mitigate nutrient losses
Variable rate irrigation (VRI), where the application rate of irrigation water across an area changes depending on soil type and other factors, can also decrease…
Guidance
Excluding stock from smaller streams
This factsheet is for farmers, industry bodies and regional authorities developing regional freshwater policy. Most of the contaminant load in waterways across New Zealand originates…
Technical Report
Nitrogen, phosphorus, sediment and Escherichia coli in New Zealand’s aquatic receiving environments: Comparison of current state to national bottom lines
This report is the first assessment of where ‘bottom lines’ for contaminants are exceeded across Aotearoa. It reveals the size of job required to achieve…
Technical Report
Optimising on-farm nitrogen management in the face of regulated fertiliser input
The key purpose of this project was to investigate how farmers had responded to the regulatory capping of synthetic nitrogen fertiliser at a maximum of…
Video
Monitoring Freshwater Improvement Actions webinar
This webinar explains an interactive WebApp that helps detect improvements in rivers, lakes and groundwater, and helps select appropriate monitoring technologies that enable early detection…