Data/hora: 08/06/2024 11:20:39

Biblioteca(s): | Embrapa Cerrados.
Data corrente: | 05/05/1999
Data da última atualização: | 05/05/1999
Autoria: | VASCONCELLOS, C. A.; PURCINO, H.; VIANNA, M. C. M.; FRANCA, C. C. M.
Título: | Resposta do Arachis pintoi a fosforo e a calcario em latossolo vermelho escuro da regiao de Sete Lagoas, MG, Brasil.
Ano de publicação: | 1998
Fonte/Imprenta: | Pasturas Tropicales, Cali, v.20, n.3, p.22-25, 1998.
Idioma: | Português
Conteúdo: | The response of Arachis pintoi to phosphorus (P) and lime was studied in a dark-red Latosol from Sete Lagoas, Minas Gerais, Brasil. The trial aimed to stabilize the critical level of P fertilization under controlled greenhouse conditions, using pots with 3 kg of soil. Composite treatments were applied consisting of five levels of P, four levels of lime, and two harvests. At harvest, Arachis production was higher in P treatments compared with lime treatments. It was possible to determine the type of P response based on the fixed regression between Arachis dry matter content and avaliable P Mehlich-1, indicating that the critical P level was 9 mg/kg. No significant interaction was found between P and lime treatments. With the maximum P content in leaves (0.18 dag/kg). It was possible to stabilize the preliminary nutritional levels in A. pintoi as follows: N,-32 dag/kg; K, -3 dag/kg; Ca, 2.2 dag/kg; Mg, 0.6 dag/kg; Cu, 14 mg/kg; and Zn, 30 mg/kg.
Palavras-Chave: | Brasil; Dark-red latosol; Minas Gerais; Sete Lagoas.
Thesagro: | Calcário; Cerrado; Fósforo; Latossolo Vermelho Escuro.
Thesaurus Nal: | Arachis pintoi; Brazil; Ferralsols; limestone; phosphorus.
Categoria do assunto: | --
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (2375-1) - ADD - SP - -- - CRI4921 -  - CRI4921 - DIS