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The phosphorus cycle

Phosphorus is a chemical element found on Earth in numerous compound forms, such as the phosphate ion (PO₄^3-), located in water, soil and sediments. The quantities of phosphorus in soil are ...

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Professor Richard McDowell

Positions: Professor – Lincoln University, Principal Scientist – AgResearch, Chief Scientist – National Science Challenge: Our Land and Water. Field: Soil and water quality. Professor Richard ...

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Managing nutrients

Dr Ross Monaghan, Dr Selai Letica, Professor Richard McDowell and other scientists from AgResearch at Invermay are researching how to reduce excessive levels of nutrients in soil on farms. Excess ...

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Farming and environmental issues

In this activity, students explore ethical issues related to farming and environmental pollution. They learn about the science involved and the range of perspectives among stakeholders. By the ...

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Water and nutrient leaching

In this activity, students demonstrate how substances are dissolved and transported by water through the soil. By the end of this activity, students should be able to: demonstrate the leaching of ...

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CITIZEN SCIENCE PROJECT

Myrtle Rust Reporter

Myrtle rust is a serious biosecurity threat, and help is needed to monitor its spread. This citizen science project aims to gather information on the location, hosts and intensity of this fungal ...

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CITIZEN SCIENCE PROJECT

eBird

This comprehensive worldwide online citizen science (OCS) project collates bird species, numbers, locations and times of sightings into a large database. You can create a class as a user and, by ...

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CITIZEN SCIENCE PROJECT

Spyfish Aotearoa

Come and visit Aotearoa New Zealand’s underwater world in this online citizen science project. Discover, count and identify unique fish species that live within our marine reserves ...

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Planet Earth and Beyond – Soil

Soil – it’s much more than dirt. Soil keeps us alive. Without soil, we would be hungry, thirsty, naked, homeless and breathless. Soils differ from location to location and are a range of colours ...

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Biocontrol in action – unit plan

Students carry out a practical investigation to help AgResearch scientists monitor the spread of Microctonus aethiopoides (a tiny wasp) and its success as a biocontrol agent for clover root ...

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Estuaries – a context for learning

With 75% of New Zealanders living within 10 km of the coast, many students will be familiar with estuaries. In scientific terms, estuaries are the interface between the land and the sea – the ...

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Phosphorus

Dr Ross Monaghan from AgResearch at Invermay in Otago explains the importance of phosphorus and then talks us through phosphorus cycle. Jargon alert Ross mentions that phosphorous is adsorbed to ...

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Managing the nutrient problem

Dr Ross Monaghan from AgResearch at Invermay in Otago talks about various practices that can be employed to manage nutrient losses from becoming a problem on farmland.

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Reducing nitrous oxide

Dr Selai Letica explains her work in managing the risk of nitrogen loss to the atmosphere through the use of nitrification inhibitors. Jargon alert: Denitrification is a part of the nitrogen ...

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Explore related interactives

The terrestrial nitrogen cycle

An interactive showing the main components of the terrestrial nitrogen cycle. Select one of the buttons to find out more. Go here to view the full transcript and copyright information.

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Environmental forensics

Dr Candida Savage explains the clues she collects in estuaries and fiords, to understand how changes in land use affect these environments. Click on the labels to watch the videos for more ...

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Urban stream restoration for native fish

This interactive looks at some of the measures you can take to look after your local stream – because if you’re looking after your local stream, you’re looking after our endangered native fish ...

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