East and Southern Africa have soils that are still relatively fertile, notably those in the
Highlands, associated with the Rift valley area. The lower areas are less well-endowed …

West Africa is poorly endowed when it comes to soil fertility. Unlike for example the Rift
Valley area, west African soils never enjoyed volcanic rejuvenation. At low agricultural …

Full text: Amongst the problems that African agriculture faces, soil fertility decline is
mentioned as a major pressure. The declining state (lower soil fertility) has led to different …

In Africa, 28 percent of its landmass, 874 Mha, is potentially suitable for agricultural
production. Of the potentially suitable agricultural land, 34 percent comprises arid and …

Soil fertility in Africa is under pressure as an increasing number of farmers attempt to make a
living based on what the land can offer to growing plants. Studies in Africa from about 1989 …

Nutrient balances are useful tools as indicators of potential land degradation and for
optimizing nutrient use, and are thus highly relevant in the African context. A comprehensive …

This paper reviews the application of the nutrient budget and balance approach from a
range of settings and scales in Africa. The paper asks: can such analyses help in the design …

Enormous research has been done within the African continent in various areas including
soil organic matter, soil biota, synchrony and resource integration. All this research is geared …

Nutrient balances were calculated for the arable soils of 38 sub-Saharan African countries.
FAO production figures and forecasts for 35 crops for the period 1982–1984 and for 2000 …

Current systems of nutrient cycling, crop-livestock systems and nutrient supply sources are
outlined and the sources and magnitudes of losses are explained with the aid of flow charts …