The Role of Trace Elements in Pasture Performance
Small Nutrients, Big Impact
Trace elements are required in much smaller quantities than major nutrients, but their influence on pasture production can be significant.
Deficiencies may limit growth, reduce feed quality, and affect livestock performance even when major nutrients are adequate.
Important Trace Elements
Common trace elements involved in pasture production include:
Copper
Zinc
Boron
Manganese
Molybdenum
Cobalt
Selenium
Iron
Each plays a specific role in plant metabolism, enzyme function, and nutrient utilisation.
Hidden Hunger
Trace element deficiencies often go unnoticed because symptoms can be subtle.
Pasture may appear reasonably healthy while still suffering from reduced productivity, lower nutrient density, or decreased resilience to stress.
This phenomenon is often referred to as "hidden hunger".
Soil and Plant Testing
The best way to identify trace element deficiencies is through testing.
Soil tests provide useful information about availability, while plant tissue analysis shows what the plant is actually taking up.
Combining both provides a more complete understanding of nutrient status.
Targeted Correction
Because trace elements are required in small amounts, targeted applications are usually more effective and economical than broad-spectrum treatments.
Accurate testing allows deficiencies to be corrected before they impact production.