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Autor(en) / Beteiligte
Titel
Mining waste associated with bioinoculants and cattle manure for the mineral nutrition and growth of maize /Residuo de mineracao associado com bioinoculantes e esterco bovino na nutricao mineral e crescimento do milho
Ist Teil von
  • Revista brasileira de engenharia agrícola e ambiental, 2024-02, Vol.28 (2), p.1
Ort / Verlag
ATECEL--Associacao Tecnico Cientifica Ernesto Luiz de Oliveira Junior
Erscheinungsjahr
2024
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
  • Vermiculite mining residues, although of low solubility, contain nutrients such as calcium, magnesium, and potassium at concentrations that allow their agricultural use. Beneficial bacteria can increase the solubility of this waste and its efficiency. The objective of the present study was to evaluate the influence of bio-inoculation of vermiculite residue, associated with cattle manure, on the release of nutrients and initial growth of maize. A completely randomized design was performed in a greenhouse with seven treatments and four replications. The treatments were: T1 - soil without fertilization; T2 - soil fertilized with soluble sources of nutrients (conventional fertilization); T3 - application of vermiculite residue (VR); T4 - VR enriched with cattle manure (CM); T5 - VR + CM with Bacillus subtilis; T6 - VR + CM + B. amyloliquefaciens, and T7 - VR + CM + B. subtilis + B. amyloliquefaciens). Regardless of the use of cattle manure or beneficial microorganisms, vermiculite mining waste increased the availability of Ca and K in the soil, but was not able to match the soluble sources of nutrients. Mining waste associated with cattle manure and beneficial microorganisms (B. subtilis and B. amyloliquefaciens) increasedmicrobial activity and enhanced the release of available calcium for maize. VR increased the growth and the dry mass production of maize compared to the non-fertilized soil, but was consistently inferior to conventional fertilizer. Key words: beneficial bacteria, vermiculite residue, remineralizers, solubilizers Os residuos da mineracao de vermiculita, embora de baixa solubilidade, contem nutrientes como calcio, magnesio e potassio em concentracoes que permitem seu uso agricola. Bacterias beneficas podem aumentar a solubilidade deste residuo e sua eficiencia. Objetivou-se avaliar a influencia da bioinoculacao do residuo de vermiculita, associado ao esterco bovino, na liberacao de nutrientes e no crescimento inicial do milho. Foi realizado delineamento inteiramente casualizado em casa de vegetacao com sete tratamentos e quatro repeticoes. Os tratamentos foram: T1 - solo sem adubacao; T2 - solo adubado com fontes soluveis de nutrientes (fertilizacao convencional); T3 - aplicacao de residuo de vermiculita (VR); T4 - VR enriquecido com esterco bovino (CM); T5 -VR+CM com Bacillus subtilis; T6 - VR + CM + B. amyloliquefaciens e T7 - VR + CM + B. subtilis + B. amyloliquefaciens). O VR aumentou a disponibilidade de Ca e K no solo, porem seu desempenho foi inferior as fontes soluveis. Independentemente da utilizacao de esterco bovino ou de microrganismos beneficos, os residuos da mineracao de vermiculita aumentaram a disponibilidade de Ca e K no solo, mas nao foram capazes de igualar as fontes soluveis de nutrientes. Os residuos de mineracao associados ao esterco bovino e aos microrganismos beneficos (B. subtilis e B. amyloliquefaciens) aumentaram a atividade microbiana e aumentaram a liberacao de calcio disponivel para o milho. Os residuos da mineracao de vermiculita aumentaram o crescimento e a producao de massa seca do milho em comparacao ao solo nao fertilizado, mas foram consistentemente inferiores ao fertilizante convencional. Palavras-chave: bacterias beneficas, residuo de vermiculita, remineralizadores, solubilizadores
Sprache
Englisch
Identifikatoren
ISSN: 1415-4366
eISSN: 1807-1929
DOI: 10.1590/1807-1929/agriambi.v28n2e273189
Titel-ID: cdi_gale_infotracmisc_A779352384

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