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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Nutrition and physiology of hybrid Eucalyptus urograndis in soil fertilized with sewage sludge

Texto completo
Autor(es):
Zabotto, Alessandro Reinaldo [1] ; Longuini Gomes, Leticia Danielle [1] ; D'andrea Mateus, Caroline de Moura [2] ; Villas Boas, Roberto Lyra [2] ; Kanashiro, Shoey [1] ; Tavares, Armando Reis [3]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Inst Bot, Av Miguel Stefano 3687, Sao Paulo, SP - Brazil
[2] Univ Estadual Paulista, UNESP, Av Univ 3780, Botucatu, SP - Brazil
[3] Inst Agron Campinas, Ave Luiz Pereira dos Santos 1-500, BR-13214820 Jundiai, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: EMIRATES JOURNAL OF FOOD AND AGRICULTURE; v. 32, n. 1, p. 19-24, JAN 2020.
Citações Web of Science: 0
Resumo

Sewage sludge is a residual pollutant product from the treatment of urban effluent and must be adequately processed before final disposal in order to avoid environmental contamination. The use of sewage sludge in agricultural and forestry areas can improve the physical, chemical and biological properties of soil; it can also be a source of nutrients, increasing crop productivity. Accordingly, this study aimed to evaluate the growth and development of hybrid Eucalyptus urograndis (Eucalyptus grandis x E. urophylla) seedlings cultivated in soil with different doses of sewage sludge. To accomplish this, hybrid E. urograndis seedlings were cultivated for 120 days in pots containing soil (dystrophic Red-Yellow Latosol-LVA) with different doses of sewage sludge (0, 30, 60 or 90 Mg ha(-1)). The experiment was carried out in a randomized complete block design consisting of four treatments, three replications with four plants per replication, totaling 48 plants. Biometric, biomass and physiological variables (chlorophyll, gaseous exchange, stomatal conductance and transpiration); in addition to macro- and micronutrient contents in leaves and soils of each treatment were evaluated. The treatments with sewage sludge were statistically superior to control treatment for all variables. Therefore, we recommend the application of 60 Mg ha(-1) sewage sludge for the growth of hybrid Eucalyptus urograndis seedlings. Conversely, 90 Mg ha(-1) sewage sludge inhibited hybrid E. urograndis root growth. (AU)

Processo FAPESP: 13/50413-0 - Compostagem do lodo de esgoto: avaliação do processo, do produto gerado e dos custos
Beneficiário:Roberto Lyra Villas Boas
Linha de fomento: Auxílio à Pesquisa - Parceria para Inovação Tecnológica - PITE