Nitrogen balance under non-tillage maize (Zea mays L.) cultivation after hairy vetch (Vicia villosa Roth.) cropping at sloping fields Access Information
Long-term effects on sward composition and animal performance of reducing fertilizer inputs to upland permanent pasture Access Information
Short-term response of rangeland botanical composition and productivity to fertilization (N and P) in a semi-arid climate of South Africa Access Information
A simple method for the estimation of potential primary pasture productivity over Mozambique Access Information
Abandoned pastoral settlements provide concentrations of resources for 160 savanna birds Access Information
Nutrient limitations on aboveground grass production in four savanna types along the Kalahari Transect Access Information
Savanna-derived organic matter remaining in arable soils of the South African Highveld long-term mixed cropping : Evidence from 13C and 15N natural abundance Access Information
Soil P availability as affected by the chemical composition of plant materials : implications for P-limiting agriculture in tropical Africa Access Information
