ACHIEVING consistent grass growth begins with healthy soils, and soil pH remains one of the most important factors influencing grassland performance. Across Irish farms, soil analysis continues to show that a significant proportion of grassland soils remain below optimum pH, restricting nutrient availability and limiting the efficiency of fertiliser and slurry applications.

Liming is the foundation of soil fertility management. When soil acidity is corrected, nutrients already present in the soil become more available, leading to improved grass growth and better utilisation of applied nitrogen, phosphorus and potassium.

Grolime, produced by Roadstone, is a high-quality ground limestone designed to correct soil acidity and support long-term grassland productivity. Manufactured from high-purity calcium carbonate, it is finely ground to deliver consistent neutralising performance at recommended application rates. Roadstone also produces magnesium (dolomitic) lime, which corrects soil pH while supplying magnesium, forming part of a broader soil fertility strategy required to correct magnesium deficiencies.

Higher targets

For most grassland soils, a target pH of 6.3 is required to optimise nutrient availability, with higher targets recommended where clover is included in the sward. Maintaining soil pH at these levels improves nitrogen response, supports stronger root development and contributes to more productive, resilient swards.

Ground limestone such as Grolime is best applied based on the results of regular soil testing, forming part of a planned soil fertility programme. By addressing soil acidity, farmers can protect fertiliser investments and improve overall nutrient efficiency at a time when controlling input costs remains a priority. With a strong reputation for quality and consistency, Roadstone’s Grolime provides farmers with a dependable liming solution that helps unlock the full potential of grassland soils and supports sustainable production over the long term.