Effects of land use types on soil chemical properties in smallholder farmers of central highland Ethiopia

Autor Duguma, Lalisa Alemayehu, Hager, Herbert, Sieghardt, Monika
Zdroj: 1. Ekológia (Bratislava) 1. Roč. 29, č. 1 (2010), s. 1-14 1. 1335-342X