Data/hora: 18/06/2024 13:48:30

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 31/10/2013
Data da última atualização: | 21/07/2014
Autoria: | FAGERIA, N. K.; CARVALHO, M. C. S.; KNUPP, A. M.; MORAES, M. F.
Afiliação: | NAND KUMAR FAGERIA, CNPAF; MARIA DA CONCEICAO SANTANA CARVALHO, CNPAF; ADRIANO MOREIRA KNUPP, CNPAF; M. F. MORAES, UNIVERSIDADE FEDERAL DO MATO GROSSO, Barra do Garças.
Título: | Nutrient uptake and use efficiency of dry bean in tropical lowland soil.
Ano de publicação: | 2013
Fonte/Imprenta: | Communications in Soil Science and Plant Analysis, New York, v. 44, n. 19, p. 2852-2859, 2013.
ISSN: | 0010-3624
DOI: | 10.1080/00103624.2013.823982
Idioma: | Inglês
Conteúdo: | Dry bean is an important source of protein for the population of South America, and yield of this legume is very low in this continent. Knowledge of nutrient uptake and use efficiency of a crop is fundamental to improve yield. A greenhouse experiment was conducted to evaluate growth, nutrient uptake, and use efficiency of dry bean (Phaseolus vulgaris L., cv. BRS Valente) during the growth cycle. Plant samples were collected at 15, 30, 45, 60, 73, and 94 days after sowing. Root dry weight, maximum root length, shoot dry weight, and number of trifoliates were significantly increased in a quadratic fashion with the advancement of plant age. Root dry weight and number of trifoliates had significant positive association with shoot dry weight. Uptake of nutrients in the grain was in the order of nitrogen (N) > potassium (K) > calcium (Ca) > magnesium (Mg) > phosphorus (P) > iron (Fe) > manganese (Mn) > zinc (Zn) > copper (Cu). Hence, it can be concluded the N requirements for bean is greatest and Cu is minimal compared to other essential nutrients for grain yield. Uptake efficiency for root, shoot, and grain production was in the order of P > Mg > Ca > K > N > Cu > Zn > Mn > Fe. The greatest P-use efficiency among macro- and micronutrients can be considered a positive aspect of mineral nutrition of bean, because recovery efficiency of P in acidic Inceptsols is less than 20%.
Thesagro: | Feijão; Microelemento; Nutriente; Phaseolus vulgaris; Solo.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (32371-1) - UPC - AP - DD - 2013.062 -  - 2013.062 - DIS