RESUMOO presente estudo teve como o objetivo avaliar a influência da adubação mineral na alocação de biomassa nas raízes, colmo e folhas de bambu cultivado em casa de vegetação. O solo é classificado como Neossolo Quartzarenico, foi adubado com as doses equivalentes a 0, 20, 40, 80 e 120 kg ha -1 de nitrogênio e 0, 10, 40, 80 e 100 kg ha -1 de fósforo e potássio, respectivamente. O delineamento experimental foi em blocos casualizados, em um esquema fatorial com quatro repetições. As plantas de bambu foram cultivadas durante 120 dias em casa de vegetação. Após este período as plantas foram coletadas e determinadas a biomassa das folhas, colmo, raízes e biomassa total. A maior produção de biomassa seca total foi obtida nas doses equivalentes a 120, 10 e 100 kg ha -1 de NPK. A maior produção da biomassa seca das folhas foi obtida com as doses equivalentes a 80, 10 e 100 kg ha -1 NPK, respectivamente. No colmo com as doses equivalentes a 120, 40 e 100 kg ha -1 NPK, respectivamente. E a maior produção nas raízes foi obtida respectivamente com as doses equivalente a e 80, 10 e 100 kg ha -1 de NPK. A adubação com N e K proporcionou aumento na produção da biomassa total das plantas de bambu.Palavras-chave: biomassa; Bambusa vulgaris; nutrição mineral. ABSTRACTThe present study aims to evaluate the influence of mineral fertilization on the allocation of biomass in the roots, culm and leaves of bamboo plants cultivated in green house. The soil is classified as Quartzipsamment, and it was fertilized with the doses equivalent to 0, 20, 40, 80, and 120 kg ha -1 of nitrogen and 0, 10, 40, 80, and 100 kg ha -1 of phosphorus and potassium. The experimental design was randomized blocks with four replications. Bamboo plants were grown for 120 days in green house. After this period the plants were harvested and the total biomass was determined as well the biomass allocation in leaves, culm and roots. The highest total dry weight biomass was achieved by the dose of 120, 10 e 100 kg ha -1 of NPK. The highest biomass production in leaves, was obtained with the dose equivalent to 80, 10 and 100 kg ha -1 NPK. The highest culm biomass biomass production was with the doses equivalent to 120, 40 and 100 kg ha -1 NPK. And the highest production in the root was achieved respectively by the doses of 80, 10 and 100 kg ha -1 of NPK. The fertilization whit N and K provided increase in the production of the total biomass of the bamboo plants.
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