View Our Strategy Document 2019 – 2024
November 02, 2023
Resources related to
Phosphorus
Adding phosphorus to soil can help grow plants – but too much in our water contributes to algal blooms. These resources can improve your understanding of how phosphorus moves from land to water, and help you find effective ways to minimise phosphorus loss.
Journal Article
A new robust hybrid model based on support vector machine and firefly meta-heuristic algorithm to predict pistachio yields and select effective soil variables
Pistachio production is an economically important crop that grows in arid environments. To predict yield and sustainably manage the use of natural resources such as…
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…
Guidance
Applying phosphorus fertiliser
Applying the right P fertiliser in the right places at the right time and rate can reduce losses. This factsheet is primarily for farmers, including…
Guidance
Using farm dairy effluent on free-draining soils
Additional measures, on top of regulations and industry good practice and guidelines, may be needed to minimise P losses from FDE applied to free-draining soils.…
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…
Interactive Tool
MitAgator
Built on a detailed farm map, MitAgator’s software gives a spatial view of where contaminant losses are occurring and identifies critical source areas (CSAs). Targeting…
Healthy Estuaries
Assessing the interactions between loadings of different contaminants from freshwaters on the health and functioning of estuaries
Phosphorus Best Practice
Investigating whether current fertiliser and effluent guidelines and policy are strong enough to prevent phosphorus loss
Physiographic Environments of New Zealand
Integrating landscape process knowledge with water chemistry to understand how and why surface water quality varies across New Zealand
Sources and Flows
Managing contaminant pathways and attenuation to create headroom for productive land use.
Connecting Soil and Water Quality
Linking soil quality and water quality to low and high N-pressure catchments