Strategies for optimizing the enrichment direct sowing: inoculation with Trichoderma spp. and use of a hydrogel

Background: Direct sowing technique is considered a promising tool for reducing costs and increasing species diversity in restoration projects. However, several factors can limit its success, making it necessary methodological adjustments to be made order maximize the emergence, establishment initial growth of plants. This study aimed evaluate influence use fungus Trichoderma asperelloides hydrogel enrichment direct as strategy enrich area process. The forest studied were Balfourodendron riedelianum, Cedrela fissilis, Luehea divaricata, Enterolobium contortisiliquum Parapiptadenia rigida. experiment was conducted factorial design testing absence or presence T. hydrogel. Two experiments established: nursery, we evaluations emergence seedlings carried out; field, evaluated survival, height stem diameter. Results: Under nursery conditions, inoculation did not tested. proved young plantations subtropical regions with E. contortisiliquum, P. rigida C. fissilis. B. riedelianum L. divaricata seeds germinate field. Conclusion: an efficient enhance results sowing, capable providing higher rates contortisiliqumm maximizing contortisiliqumm. high pluviometric intensity, does morphological attributes studied.