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June 26, 2024
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.
Showing 1 - 12 of 149 results
Journal Article
Phosphorus and iron-oxide transport from a hydrologically isolated grassland hillslope
Losses of N, P and Fe in drainage responded differently to waterlogging. Moderate nitrate concentration prevented Fe–P dissolution and loss in drainage. Low nitrate concentrations…
Journal Article
The longevity of cultivation in decreasing the potential for phosphorus loss in runoff
Phosphorus (P) loss from highly fertilised grazed pastures can impair surface water quality. High P concentrations in grazed pastures are maintained to boost legume production,…
Journal Article
A Global Database of Soil Plant Available Phosphorus
Soil phosphorus drives food production that is needed to feed a growing global population. However, knowledge of plant available phosphorus stocks at a global scale…
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…
Journal Article
Temporal Changes in Cd Sorption and Plant Bioavailability in Compost-Amended Soils
The application of Cd-contaminated phosphate fertiliser has enriched concentrations of this non-essential element in many agricultural soils. Consequently, concentrations of the metal in some agricultural…
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…
Interactive Tool
Monitoring Freshwater Improvement Actions Webapp
These WebApp tools will help freshwater stewards and kaitiaki decide what to measure, where, when, with what technology, and understand how much it will cost.…