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Revista de Ciências Agrárias
versão impressa ISSN 0871-018X
Resumo
BISERRA, Thiago T. et al. Use of biofertilizer and chemical fertilizer on piatã-grass (Brachiaria brizantha). Rev. de Ciências Agrárias [online]. 2017, vol.40, n.2, pp.31-41. ISSN 0871-018X. https://doi.org/10.19084/RCA16006.
A study was carried out aimed at evaluating the development of piatã-grass (Brachiaria brizantha) receiving different levels of organic fertilization (0, 1.0, 2.0, 3.0 and 4.0 L of biofertilizers liquid manure) in different conditions of chemical fertilizer (no chemical fertilizer - control, with application of 50 % and 100 % of the chemical fertilizer recommendation). It was observed effect (P <0,05) with or without biofertilizer with chemical fertilizer in all morphogenic and structural characteristics of piatã-grass except the life span of leaves with 100% of chemical fertilizer. It was also observed linear effect (P <0.05) of biofertilizer in leaf elongation rate and leaf senescence in all conditions of chemical fertilizer. With 50% of the chemical recommendation, there was a linear effect (P <0.05) in leaf appearance rate, phyllochron and number of live leaves. The total or partial replacement of chemical fertilizer with biofertilizer may be promising in the development of piatã-grass.
Palavras-chave : biofertilization; Brachiaria brizantha cv. BRS Piatã; morphogenic characterization; sustainable development.