Why Combining Soil & Leaf Testing Delivers Better Results
Making the right fertiliser and crop management decisions requires more than assumptions. Successful farming depends on reliable information, and one of the most effective ways to understand crop performance is by combining soil testing with leaf nutrition testing.
While each test provides valuable information individually, using both together gives growers a more complete understanding of crop nutrition, helping maximise productivity, improve fertiliser efficiency, and support long-term soil health.
Why Soil Testing Alone Isn't Always Enough
Soil testing identifies the nutrients available within the soil and provides valuable information about soil pH, salinity, organic matter, and overall fertility. However, nutrient availability doesn't always mean nutrients are being absorbed by the plant.
Factors such as soil compaction, moisture stress, root damage, temperature, and pH can all influence nutrient uptake. Without understanding what the plant is actually absorbing, growers may miss hidden deficiencies that can affect crop performance.

Leaf Testing Confirms Plant Uptake
Leaf nutrition testing measures the nutrients present within plant tissue, providing a clear picture of the crop's nutritional status. Leaf analysis can identify hidden nutrient deficiencies, nutrient toxicities, imbalances between elements, and early nutritional problems before visual symptoms develop. This information allows growers to respond quickly and make informed fertiliser decisions before production is affected.
Better Decisions Through Combined Analysis
When soil and leaf testing are combined, growers receive a complete picture of crop nutrition. Together they help answer two important questions:
- What nutrients are available in the soil?
- What nutrients is the plant actually using?
Benefits include improved fertiliser efficiency, crop quality, yield consistency, long-term soil management and return on fertiliser investment.

Supporting Sustainable Farming
Applying fertilizer based on laboratory data rather than assumptions can reduce unnecessary applications and improve nutrient use efficiency. Better-informed decisions support sustainable farming practices while helping growers manage rising input costs.
How ALTSA Can Help
ALTSA provides comprehensive soil and leaf nutrition testing services that help growers better understand crop performance and make informed agronomic decisions. Supported by NATA-accredited testing methods, responsive turnaround times, and clear reporting, ALTSA helps growers access reliable information when it matters most.
Whether managing vineyards, orchards, horticulture, or broadacre farming, combining soil and leaf testing provides valuable insights that support healthier crops and better productivity.



