High Fertiliser Costs With Low Returns – Field Results & Agronomic Interpretation
Getting More from Fertiliser Through Soil and Biological Support.
Many growers apply higher fertiliser rates expecting better yields, but returns often fall short due to inefficient nutrient use, soil constraints, or poor microbial activity. Field observations show that supporting soil biology and nutrient cycling with DCT products improves nutrient efficiency, reduces losses, and increases crop and pasture productivity, even without increasing fertiliser rates.
This approach focuses on maximising the effectiveness of fertiliser applied, rather than simply increasing the rate.
Field Observation Summary
Treated pastures and crops showed higher nutrient uptake and improved growth without increasing fertiliser input.
Soil tests indicated enhanced microbial activity, promoting nutrient cycling and availability.
Growers reported better consistency across paddocks and higher overall yield efficiency.
Evidence Context
Important context
Observations were recorded across multiple soil types, crop species, and fertiliser regimes. Results depend on soil texture, moisture, and management practices.
International agronomic research confirms that supporting soil biology improves nutrient use efficiency and plant uptake, aligning with these field observations.
Agronomic Interpretation
High fertiliser rates alone don’t guarantee better yields. Observed improvements are linked to:
Enhanced microbial activity increasing nutrient availability.
Better nutrient cycling, reducing losses from leaching or volatilisation.
Stronger root systems, improving nutrient uptake and plant resilience.
Supporting these processes helps growers get more from every kilogram of fertiliser.
Where This Fits in the Farming System
DCT products enhance the efficiency of fertiliser, supporting both pasture and crop growth.
While correct fertiliser selection and application remain important, field evidence shows improved returns without increasing rates.
Works best as part of integrated nutrient management including soil testing, fertiliser planning, and grazing or crop management.
Products Used in the System
Turbo N – Supports nitrogen efficiency, improving uptake and reducing losses.
Restore – Adds biological support for stressed soils, increasing nutrient cycling and availability.
Lazerhume – Enhances soil microbial activity, supporting root growth and nutrient use.
Optimise iO – Improves microbial diversity and nutrient cycling, strengthening overall soil and plant function.
Agronomy Insight
Agronomy insight
Efficient nutrient use is more important than simply applying more fertiliser. Field observations and research show that supporting soil biology enhances nutrient cycling, reduces waste, and maximises growth, providing better returns on fertiliser investment.
When This Approach Has Limits
Extremely nutrient-deficient soils may require targeted supplementation.
Severe soil structure issues or compaction can limit root access to nutrients.
Even in these cases, supporting soil biology improves nutrient availability, uptake, and long-term soil function.
Key Takeaway
Field observations show that supporting soil biology and nutrient cycling improves fertiliser efficiency, reduces losses, and enhances pasture and crop performance, helping growers get better returns without applying more.