The interaction between soil pH and phosphorus fertilizer is dynamic - WA Soil Knowledge Base

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The Soil attributes section contains information on different topics within soil biology, physics or chemistry. Pages within these topics present an overview of the current state of knowledge, explain the principles and properties of different soil attributes, and highlight insights from research and resources like case studies. Resources are suggested throughout these Pages.
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Date

2016/02/29

Link

Link: GRDC Update paper

Organisations

Department of Primary Industries and Regional Development

GRDC

Authors

Craig Scanlan

Ross Brennan

Mario D’Antuono

Gavin Sarre

Take home messages

An interaction between soil pH and phosphorus fertiliser is most likely when:
- There are no other major nutritional constraints to crop growth.
- A large change (>0.5 pH units) has been made to subsurface pH by lime application.
When the two criteria above have been met, an interaction between soil pH and phosphorus fertiliser can lead to greater availability of soil phosphorus.

Video

A ‘systems’ approach to managing sodic and alkaline soil

Soil management

03:10

A combination of crop choice, water harvesting, gypsum application, maximising soil cover and no livestock, and then maintaining the...

Video

Processes of soil nutrient supply to plant roots

02:36

Professor Richard Bell explains how plant roots take up nutrients from the soil by diffusion, mass flow, and interception.

Nitrous oxide greenhouse gas emissions from dryland cropping soil

Soil management

5 min read

Quantifying the extent and timing of nitrous oxide emissions.

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