Data/hora: 21/06/2024 12:03:46

Biblioteca(s): | Embrapa Agroindústria Tropical; Embrapa Meio Ambiente.
Data corrente: | 10/01/2022
Data da última atualização: | 25/01/2023
Autoria: | GONDIM, R. S.; MAIA, A. de H. N.; TANIGUCHI, C. A. K.; MUNIZ, C. R.; ARAÚJO, T. A.; MELO, A. T. de; SILVA, J. da.
Afiliação: | RUBENS SONSOL GONDIM, CNPAT; ALINE DE HOLANDA NUNES MAIA, CNPMA; CARLOS ALBERTO KENJI TANIGUCHI, CNPAT; CELLI RODRIGUES MUNIZ, CNPAT.
Título: | Beneficial effect of biochar on irrigated dwarf-green coconut tree.
Ano de publicação: | 2022
Fonte/Imprenta: | Atmosphere, v. 13, n. 1, article 51, 2022.
ISSN: | 2073-4433
DOI: | https://doi.org/10.3390/atmos13010051

Idioma:

Inglês
Português

Conteúdo: | Abstract: The coconut tree is considered one of the greatest consumers of irrigation water, ranging from 100 to 240 L day&minus;1. The objective of the present study was to evaluate the effect of biochar application on decreased irrigation water needs in a 2-year irrigated dwarf coconut palm orchard field experiment. Biochar was characterized chemically and by electron microscope images. Biochar morphology presented several micropores indicating water retention potential. Amounts of biochar were tested (0, 5, 10, 20, 40 g of biochar per kg of soil), representing 0.0; 0.5; 1.0; 2.0; and 4.0 kg per plant. Micro sprinkler irrigation started following the planting of the 90-day old hybrid dwarf coconut seedlings. The impacts of the application of the biochar on the chemical attributes of the soil, biometry of the coconut plants, water storage in the 0&ndash;0.3 m soil layer, and the volume of irrigation water required by treatment were evaluated. After two years (2017 and 2018), the application of the biochar resulted in no statistically significant differences in the chemical attributes of the soil and biometric variables of plants between different treatments. The volume of annual irrigation water per plant versus biochar quantity demonstrated a decreasing effect, due to the increase of soil water storage. The dose of 40 g of biochar per kg of soil presented the highest two-year average soil water retention (0&ndash;0.3 m layer) among treatments (34, 36, 34, 38, and 45 mm, respectively), resulting in lower 2-year irrigation water demand (28, 36, 29, 28 and 20 L plant&minus;1 day&minus;1, respectively).
Palavras-Chave: | Adaptação; Alterações Climáticas; Casca de coco; Coconut husk.
Thesagro: | Coco; Condicionador do Solo; Umidade do Solo.
Thesaurus Nal: | Climate change; Coconuts; Plant adaptation; Sacramento Soil Moisture Accounting Model; Soil conditioners.

Categoria do assunto:

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P Recursos Naturais, Ciências Ambientais e da Terra

Registro original: | Embrapa Meio Ambiente (CNPMA)

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