Data/hora: 23/06/2024 06:48:10

Biblioteca(s): | Embrapa Amazônia Oriental.
Data corrente: | 27/10/2020
Data da última atualização: | 17/11/2020
Autoria: | COSTA, S. D. A. da; BRASIL, E. C.; SILVA JÚNIOR, M. L. da.
Afiliação: | SIDNEY DANIEL ARAÚJO DA COSTA, UFRA; EDILSON CARVALHO BRASIL, CPATU; MÁRIO LOPES DA SILVA JÚNIOR, UFRA.
Título: | Influence of limestone and gypsum application on chemical attributes of dystrophic yellow latosol soil and corn yield in Eastern Amazon.
Ano de publicação: | 2020
Fonte/Imprenta: | Journal of Agricultural Studies, v. 8, n. 3, p. 363-383, 2020.
DOI: | 10.5296/jas.v8i3.16744
Idioma: | Inglês
Conteúdo: | The objectiveof this study was to evaluate changes in the chemical attributes of the soil caused by the use of limestone associated or not to with gypsum in no-tillage system. The experiment was conducted on a dystrophic Yellow Latosol in Pará state,Brazil. The experimental design was in randomized blocks in split plots with three replications. The treatments consisted of five doses of limestone (0, 1, 2, 3 and 4 t ha-1), with and without gypsum (0, 0.5 and 1 t ha-1). Soil samples were collected at depths of 0-20 and 20-40 cm. There was a significant effect on the analyzed variables at both depths. The doses of 3.64 and 2.19 t ha-1of limestone associated with 0.5 t ha-1of gypsum, were responsible for the largest increase in soil calcium content in the 0-20 and 20-40 cm layers, respectively. The highest increase in Ca + Mg content was found at 3.63 t ha-1limestone combined with 0.5 t ha-1gypsum. It was observed that 3.13 t ha-1of limestone combined with 0.5 t of gypsum increased soil CEC. The 2.89 t ha-1dose of limestone combined with 0.5 t of gypsum contributed to the increase in base saturation (V%). The use of limestone and gypsum promotes soil chemical conditions, as reflected by increased corn yield when compared with control (no treatment) plots.
Thesagro: | Calcário; Gesso; Latossolo Amarelo; Milho; Química do Solo; Zea Mays.
Thesaurus Nal: | Amazonia; Limestone; Plaster; Soil chemistry.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/217113/1/Influence-of-Limestone-and-Gypsum-Application-on-Chemical-Attributes-of-Dystrophic-Yellow-Latosol-Soil-and-Corn-Yield-in-Eastern-Amazon.pdf
Registro original: | Embrapa Amazônia Oriental (CPATU)
Exemplares: | CPATU - (56586-1) - UPC - AP - DD -  -  -  - DIS