Data/hora: 13/06/2024 08:20:00

Biblioteca(s): | Embrapa Hortaliças.
Data corrente: | 03/12/2020
Data da última atualização: | 03/12/2020
Autoria: | SALLES, J. S.; JORGE, M. H. A.; COSTA, E.; MELO, R. A. de C. e; LIMA, A. H. F. de; BINOTTI, F. F. da S.
Afiliação: | JOSIANE SOUZA SALLES, Universidade Estadual Paulista; MARCAL HENRIQUE AMICI JORGE, CNPH; EDILSON COSTA, Universidade Estadual de Mato Grosso do Sul; RAPHAEL AUGUSTO DE CASTRO E MELO, CNPH; ALEXANDRE HENRIQUE FREITAS DE LIMA, Universidade Estadual de Mato Grosso do Sul; FLÁVIO FERREIRA DA SILVA BINOTTI, Universidade Estadual de Mato Grosso do Sul.
Título: | Use of nanocomposite hydrogel with N-urea in the production of eggplant seedlings.
Ano de publicação: | 2020
Fonte/Imprenta: | Revista de Agricultura Neotropical, Cassilândia, v. 7, n. 4, p. 80-85, out./dez. 2020.
ISSN: | 2358-6303
Idioma: | Inglês
Conteúdo: | The study aimed to evaluate the use of nanocomposite hydrogel enriched with different proportions of N-urea in the production of eggplant seedlings. The experiment was conducted at the State University of Mato Grosso do Sul, Cassilândia, MS, Brazil, from June to August 2019, under sombrite® 30%. Five treatments were evaluated, using the commercial substrate, Carolina Soil®: 1) commercial substrate without hydrogel; 2) commercial substrate with 0.075g of pure hydrogel (0.00g of N-urea)/15 mL of a substrate; 3) commercial substrate with 0.075g of hydrogel and 10% N-urea/15 mL of a substrate; 4) commercial substrate with 0.075g of hydrogel and 20% N-urea/15 mL of a substrate, and 5) commercial substrate with 0.075g of hydrogel and 40% N-urea/15 mL of a substrate. The experiment was conducted with four replications of 25 seedlings. The emergence speed index, percentage of emergence, height, number of leaves, stem diameter, shoot dry matter, root dry matter, and total dry matter were evaluated, as well as the Dickson Quality Index. The data were subjected to analysis of variance (SPEEDSTAT statistical software) and grouping test of means. A regression analysis was performed to adjust equations for some of the variables. The best seedlings can be obtained using the dosage of 28.83% N-urea with 0.075g of hydrogel per 15 ml of the substrate, according to the DQI adjustment, which includes several traits of the seedlings, thus reflecting on its quality.
Palavras-Chave: | Hidrogel.
Thesagro: | Berinjela; Muda; Nutrição Vegetal.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/218686/1/5472-20522-1-PB.pdf
Registro original: | Embrapa Hortaliças (CNPH)
Exemplares: | CNPH - (41418-1) - UPC - AP - DD -  -  -  - DIS