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While fertiliser use is routine on farms, lime application is often delayed, despite its vital role in productivity through improved soil structure and nutrient efficiency.
Soil structure refers to the size, shape and balance of aggregates, which determine porosity, enable drainage and allow air movement. Aggregates form when clay, sand, silt and organic matter bind together.
Microorganisms decompose organic matter and release binding agents, while plant roots and fungal networks stabilise particles into larger aggregates.
Well‑structured soils contain many fine, porous aggregates and few clods.
Compacted soils are dominated by large clods with limited pore space. Lime assists aggregation by promoting bonds between clay and organic matter, strengthening soil structure and increasing porosity.
Poor soil structure encourages weeds and disease, reduces production, especially in spring and increases vulnerability to drought, waterlogging, erosion, runoff and nutrient loss.
Improved structure enhances water and nutrient retention, improves aeration and supports strong root growth.
Research shows that correcting soil pH with appropriate lime application can improve drainage and lift dry matter production within 6–12 months.
Call 0800 433 5720 to connect with your local Avoca Lime & Fertiliser Consultant now.
