Fecha de publicación: -- Fuente: WIPO "tomato" An NPK fertilizer composition comprises calcium silicate particles having an average particle size below 400 micrometers at an amount up to 20% by weight of the NPK fertilizer composition. The addition of calcium silicate improves plant drought resistance, enhances soil moisture retention, and strengthens granule mechanical properties. A method of manufacturing such an NPK fertilizer composition is also disclosed.