When irrigation water is applied to turf soils, soluble salts naturally accumulate in the root zone. Over time, this build-up can affect both soil structure and turf performance. Nuturf’s Saturated Soil Paste Extract Testing provides a detailed analysis of the soil solution - the water and dissolved salts surrounding turf roots - helping turf managers make informed decisions for healthier, more resilient playing surfaces.

What is Saturated Soil Paste Extract Testing?

This advanced testing method focuses on the liquid phase of the soil profile which is the section most relevant to plant uptake. The process involves:

1. Collecting site-specific samples – soil is taken directly from the turf under review.
2. Using the actual irrigation source – the same water applied to the turf is used to saturate the soil sample, ensuring accuracy.
3. Extracting the soil solution under partial vacuum to identify and quantify dissolved salts and nutrients.

Because both the soil and irrigation source are tested together, results reflect real-world conditions, offering insights beyond standard soil or water testing alone.

Why is Saturated Soil Testing Important?

Saturated soil testing is a critical tool for turf managers, as it:

• Measures immediately available nutrients – identifies what the turf can access at a given point in time.
• Assesses soil salinity and salt composition – determines potential impacts on turf health and soil function.
• Connects soil and water data – integrates information from both sources, often revealing insights not seen through independent testing.
• Supports proactive management – helps prevent issues related to nutrient deficiencies, salt stress, and irrigation water quality.

This type of testing is particularly relevant for turf managers irrigating with bore water, which can often carry elevated salt loads that significantly impact soil and turf health.

Practical Benefits for Turf Managers

By understanding the composition of the soil solution, turf managers can:

• Optimise fertiliser and soil amendment programs.
• Adjust irrigation practices to minimise salt accumulation.
• Enhance turf resilience under challenging water quality conditions.
• Improve decision-making for long-term soil and turf health.

When Should You Use This Test?

Saturated Soil Paste Extract Testing is particularly valuable when:

• Irrigation water quality varies seasonally or by source.
• Turf is showing unexplained stress despite adequate fertilisation.
• High-performance turf areas (e.g., golf greens, sports fields) require precise nutrient management.
• Soil and water test results appear inconsistent or incomplete.

Why Choose Nuturf?

With decades of expertise in turf agronomy, Nuturf offers more than just testing, we provide interpretation and actionable recommendations. Our technical team ensures results are translated into clear, practical strategies for improved turf and soil performance.