EFFECT OF FALLOW LAND, CULTIVATED PASTURE AND ABANDONED PASTURE ON SOIL FERTILITY IN TWO DEFORESTED AMAZONIAN REGIONS
The effect of two practices adopted by settlers (abandoned pasture and fallow land) on soil fertility of two deforested Amazonian regions (Belém-Pará and Ariquemes-Rondônia) was studied. Whenever possible, cultivated pasture, over similar time periods in both cases and in natural forest, were employed as soil fertility reference standards.