The effect of slash and burn agriculture on plant nutrients in the Tertiary Region of Central Amazonia ()
SUMMARY The slash and burn method was studied with respect to changes on the chemical composition in the top-soil layer (upper 20 cm) of yellow latosols (about 85% of the total area) and hydromorphic soils (about 1% of the total area) before and after fire was set on the cleared forest.The obtained analytical data prove the following result : 1) th