Your browser doesn't support javascript.
loading
Fertilization using sewage sludge in unfertile tropical soils increased wood production in Eucalyptus plantations.
Abreu-Junior, Cassio Hamilton; Firme, Lucia Pitol; Maldonado, Carlos Alberto Baca; de Moraes Neto, Sebastião Pires; Alves, Marcelo Corrêa; Muraoka, Takashi; Boaretto, Antonio Enedi; Gava, José Luís; He, Zhenli; Nogueira, Thiago Assis Rodrigues; Capra, Gian Franco.
Afiliación
  • Abreu-Junior CH; Department of Plant Nutrition, Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, SP, 13400-970, Brazil.
  • Firme LP; Department of Plant Nutrition, Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, SP, 13400-970, Brazil.
  • Maldonado CAB; School of Engineering, Federal University of Grande Dourados, Dourados, MS, 79804-070, Brazil.
  • de Moraes Neto SP; EMBRAPA Cerrado, Planaltina, DF, 73310-970, Brazil.
  • Alves MC; Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, SP, 13418-900, Brazil.
  • Muraoka T; Department of Plant Nutrition, Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, SP, 13400-970, Brazil.
  • Boaretto AE; Department of Plant Nutrition, Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, SP, 13400-970, Brazil.
  • Gava JL; Suzano Papel e Celulose S.A., Itapetininga, SP, 18200-000, Brazil.
  • He Z; University of Florida, Institute of Food and Agricultural Sciences, Indian River Research and Education Center, Fort Pierce, FL, 34945-3138, USA.
  • Nogueira TAR; Department of Plant Protection, Rural Engineering and Soils, School of Engineering, São Paulo State University, Ilha Solteira, SP, 15.385-000, Brazil.
  • Capra GF; Dipartimento di Architettura, Design e Urbanistica, Università degli Studi di Sassari, Via Colombo no 1, 08100, Nuoro, Italy; Desertification Research Centre, Università degli Studi di Sassari, Viale Italia no 39, 07100, Sassari, Italy. Electronic address: pedolnu@uniss.it.
J Environ Manage ; 203(Pt 1): 51-58, 2017 Dec 01.
Article en En | MEDLINE | ID: mdl-28778005
Fertilization of Eucalyptus plantations using sewage sludge on unfertile tropical soils represents an alternative to using mineral N and P fertilizers. A 44-month field experiment was conducted to study the effects of increasing application of sludge, and its interactions with mineral N and P fertilizers, on wood volume. Four rates of sludge (0, 8, 15 and 23 Mg ha-1, dry base), N (0, 47, 95 and 142 kg ha-1) and P (0, 28, 56 and 84 kg ha-1 of P2O5) were combined in a 4 × 4 × 4 factorial scheme in a totally randomized block design. Response surface and age-shift modeling was used to establish an initial recommendation for mineral fertilization of the Eucalyptus plantations treated with sludge and to analyze the implications of increased growth on the duration of the forest cycle in a tropical climate. The results showed that from 8 to 44 months after planting, the sludge application (with or without N and P) yielded a statistically larger wood volume (P < 0.05), compared to application of N and P fertilizers only. The response surface modeling showed the following outcomes: i) application of sludge based on N criterion reduced the need for N and P fertilizers by 100%; and ii) an increase in wood volume by 7% could be achieved, compared to NPK fertilizers only, if 2/3 of the recommended P was applied. The cultivation time to produce 150 m3 ha-1 of wood volume was 45 months for the control and was reduced by two, three, four, or five months, respectively, through application of recommended P, sludge dose, sludge plus one third of P, and sludge plus two thirds of P. On the whole, sewage sludge could represent an excellent unconventional N and P fertilizer source for wood production on unfertile tropical soils.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aguas del Alcantarillado / Eucalyptus / Fertilizantes Tipo de estudio: Clinical_trials / Prognostic_studies Idioma: En Revista: J Environ Manage Año: 2017 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aguas del Alcantarillado / Eucalyptus / Fertilizantes Tipo de estudio: Clinical_trials / Prognostic_studies Idioma: En Revista: J Environ Manage Año: 2017 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido