HomeGlossary of termsModule Map

Soil type, previous crops, rainfall totals, weed levels and application methods are just a few of the many interacting factors that need to be considered when making decisions about how to manage your crop's nutrition.


This module focuses on information that will help you make profitable and sustainable nutrient decisions.


Unit 3.1 starts with an overview of the many factors that will influence your nutrient decisions, examines how to use soil tests to guide nutrient decisions and outlines the 10 macro nutrients required by plants.


Unit 3.2 introduces the concept of soil acidity and the role of liming,


Units 3.3 through 3.7 focus on the major nutrients of phosphor, potassium, sulphur, nitrogen and the role trace elements in plant growth.


Unit 3.8 looks at the role of water storage and nutrients, including discussions of soil water holding capacity, waterlogging and drainage, soil pH and nutrient analyses.

3.1 Nutrient Planning for Pastures
3.2 Soil Acidity and Liming
3.3 Exchangeable Cations
3.4 Nitrogen for Pastures
3.5 Phosphorus
3.6 Potassium
3.7 Sulphur For Pastures
3.8 Trace Elements for Pastures
3.9 Soil Water Holding Capacity
3.10 Storage of Water and Nutrients
3.11 Soil pH
3.12 Key Nutrients



Top of page
Any recommendation contained on this website does not necessarily represent the policy of the Agricultural Bureau of South Australia Incorporated, or any of the contributors of material held here in. No person should act on the basis of the contents of this website, whether as a matter of fact or opinion or other content, without first obtaining specific, independent professional advice which confirms the information contained in this publication.