Data/hora: 09/06/2024 02:23:10

Biblioteca(s): | Embrapa Gado de Corte.
Data corrente: | 16/04/1997
Data da última atualização: | 16/04/1997
Autoria: | RAO, I. M.; KERRIDGE, P. C.; MACEDO, M. C. M.
Título: | Nutritional requirements of Brachiaria and adaptation to acid soils.
Ano de publicação: | 1996
Fonte/Imprenta: | In: MILES, J.W.; MAASS, B.L.; VALLE, C.B. do, ed. Brachiaria: biology, agronomy and improvement. Cali: CIAT / Brasilia: EMBRAPA-CNPGC, 1996.
Páginas: | p.53-71.
Série: | (CIAT Publication, 259).
Idioma: | Inglês
Notas: | CNPGC.
Conteúdo: | Most commercial Brachiaria species are adapted to low-fertility acid soils of the tropical. We describe, with examples, some of the  attributes that enable them to adapt. The include the ability to (1) maintain root growth at the expense of shoot growth; (2) acquire and use both nitrate and ammonium forms of N; (3) acquire N through associative fixation; (4) acquire P through extensive root systems and association with vesicular-arbuscular mycorrhizae; and (5) acquire Ca through extensively branched roots with large numbers of root tips. Although Brachiaria species have much lower internal requirements, especially of P and Ca, than do other grasses such as Panicum maximum, they show intensific differences, which we describe. We also developed a system to diagnose mineral nutrient disorders by visual symptoms in B. decumbens cv. Basilisk, and describe our results. We offer a list of priorities for further research.
Palavras-Chave: | Adaptation; Brazilian savannas; Exigencias nutricionais; Management; Nutritional disorders; Nutritional requirements; Quality.
Thesagro: | Aclimatação; Adubação; Brachiaria; Calagem; Cálcio; Cerrado; Deficiência Nutricional; Fixação de Nitrogênio; Fósforo; Manejo; Pastagem; Qualidade; Solo Ácido.
Thesaurus Nal: | acid soils; calcium; fertilizer application; liming; nitrogen fixation; pastures; phosphorus.
Categoria do assunto: | --
Registro original: | Embrapa Gado de Corte (CNPGC)
Exemplares: | CNPGC - (5091-1) - UMT - PL - -- - 633.2 - M643b - 1997.00005 - DIS