Índices de cobertura vegetal e fitomassa de Stylosanthes guianensis Cv. mineirão em área degradada, fertilizada com adubo mineral e biossólido
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Data
2008-03
Autores
Godoi, Emiliano Lôbo de
Borges, Jácomo Divino
Leandro, Wilson Mozena
Título da Revista
ISSN da Revista
Título de Volume
Editor
João Batista Duarte
Resumo
Sewage sludge, when treated and considered proper to
agronomic application, is called biosolid and can be used to recover
degraded areas, as an organic material source for soil conditioning
and plant nutrition. The objective of this research was to evaluate
the potential of sewage sludge produced by the Estação de
Tratamento de Esgoto (ETE), in Goiânia, Goiás State, Brazil,
enriched with 50% (v/v) of CaO and growth bio-stimulator, for
recovering a degraded area. The evaluated variables were soil
covering and the Stylosanthes guianensis cv. Mineirão yield. Eight
treatments, in randomized complete block design, were evaluated,
with four replications. The treatments were: control; mineral
fertilizer; 20 Mg ha-1 of biosolid; 20 Mg ha-1 of biosolid + biostimulator;
40 Mg ha-1 of biosolid; 40 Mg ha-1 of biosolid + biostimulator;
60 Mg ha-1 of biosolid; and 60 Mg ha-1 of biosolid +
bio-stimulator. Soil covering and productivity indexes showed
no significant differences, if we consider the mineral fertilizing
treatments and those with increasing levels of biosolid residues,
in the absence of bio-stimulator. All treatments with bio-stimulator
showed negative effects over soil recovering and S. guianensis
productivity. The research suggests that the biosolid residues
produced by ETE present appropriate characteristics for
recovering degraded soil, replacing mineral fertilizing, as long as
sanitary and environmental quality can be assured.
Descrição
Palavras-chave
Lodo de esgoto, Biossólido, Área degradada, Bio-estimulador, Sewage sludge, Biosolid residue, Degraded areas, Bio-stimulator
Citação
GODOI, Emiliano Lôbo de; BORGES, Jácomo Divino; LEANDRO, Wilson Mozena. Índices de cobertura vegetal e fitomassa de Stylosanthes guianensis Cv. mineirão em área degradada, fertilizada com adubo mineral e biossólido. Pesquisa Agropecuária Tropical, Goiânia, v. 38, n. 1, p. 21-26, jan./mar. 2008. Disponível em: <https://www.revistas.ufg.br/pat/article/view/3622/3414>.