Enrichment of regenerating forest using tree species on atlantic forest region

Abstract

In a regenerating forest in Paraty-RJ, four N₂-fixing tree species (Acacia holosericea, Mimosa caesalpiniifolia, Anadenanthera macrocarpa and Enterolobium contortisiliquum) and two Non-N₂- fixing (Schinus terebinthifolius and Eucalyptus grandis) were transplanted. N₂-fixing tree species were inoculated with rhizobia and arbuscular mycorrhizal fungi (AMF) while Non-N₂-fixing tree species only with AMF. Otherwise, half of the plants were inoculated with P-solubilizing bacteria. P-solubilizing bacteria did not increase the growth and plant nutrition after field transplantation. M. caesalpiniifolia and E. contortisiliquum showed better performance being the most recommended species for enrichment of regenerating forest.

Key words
pioneer species; biological nitrogen fixation; P-solubilization