FAQ on Soil Sampling and Testing

Question 1

Does it matter how soil sampling is done?

Accepted Answer

Absolutely, the method of soil sampling is crucial for obtaining representative and actionable data. Targeted sampling, for instance, focuses on specific areas or zones within a field identified as unique or problematic. This approach provides detailed insights into localized issues, allowing for precise interventions. By tailoring the sampling method to the specific needs and conditions of the land, farmers and agronomists can make more informed decisions, optimizing resources and ensuring soil health.

Question 2

What value does EM and Gamma Radiometric data add in combination with soil sample data?

Accepted Answer

EM and Gamma Radiometric data, through interpolated maps, offer the kind of predictive modelled coverage that would be far too expensive to conduct with soil sampling. The only other method that would be as comprehensive, would be planting all native trees from each locality in every hectare and waiting 5 years to see which ones survive. That would offer a really good map, but has its own methodological and logistical, not to mention economical problems.

Question 3

How do other layers like yield maps and satellite imagery benefit from having soil survey data available?

Accepted Answer

The fundamental reality is that all plant growth is driven by sunlight and water. The only thing under human management to some extent, is the soil, which is the next most important factor in plant growth. Understanding the soils first, is paramount to understanding yield and biomass results, not the other way around. Yield and biomass imagery can be utilised in fertiliser replacement strategies, or as a variable rate application if the season is looking optimistic, then applying more, as long as the forecasts look favourable.

Question 4

What role does expert analysis play in interpreting data and building prescription maps?

Accepted Answer

Time and efficiency loss is a major downside if the analysis is not properly conducted. If the data is misinterpreted, there could be a poor zoning map applied for a soil ameliorant product for example, that may not be required, or may be too much, leading to nutritional problems. There is a lot of balance required with VR maps, it needs a reasonable approach while being mindful of the pitfalls, therefore experience is really highly sought after.

Soil Sampling and Testing Experts

Beyond the reach of sensors: leverage soil sampling for unparalleled precision in crop management

Targeted Soil Sampling

Sensor data alone is not enough

Truth

Optimisation

Accuracy

Understand Soils First

Soil is the primary medium for plant growth

Understanding

Efficiency

Depth

Expert Analysis Matters

Experience and independent analysis is highly valued

Analysis

Reliability

Experience