Slurry injection boosts nitrogen efficiency and crop yields while reducing emissions

Slurry injectors apply fertilizer directly to the root zone, reducing nitrogen losses by 10–20% compared to splash plate application, minimizing odour, and boosting crop yields by up to 30% on grassland and 16% on soybeans. This method enhances slurry value, supports environmental sustainability, and improves economic and technical efficiency. Suitable for grassland and arable crops, injector types include trailing shoe, disc, and tine. Optimal performance requires slurry with dry matter <5%, compatible equipment, and consideration of soil type, slope, and maintenance. Funding from the European Union’s Horizon 2020 programme.