Reference

Belete Lulu, Alessandro Piccolo, Zena Abathun, Heribert Insam (2004): Effect of a Single-time Fertilization on soil Organic C and Microbial Parameters in Tropical Andosol and Vertisol Cultivated with Wheat – Mitteilungen der Österreichischen Bodenkundlichen Gesellschaft – 70: 69 - 75.