Data/hora: 05/06/2024 07:54:23

Biblioteca(s): | Embrapa Arroz e Feijão.
Tipo da produção científica: | Artigo em Periódico Indexado
Data corrente: | 18/12/2018
Data da última atualização: | 18/12/2018
Autoria: | MESQUITA, M. A. M; SILVEIRA, P. M. da; LEANDRO, W. M.; FLORES, R. A.; MARANHÃO, D. D. C.
Afiliação: | MARCOS ANTÔNIO MACHADO MESQUITA, INSTITUTO FEDERAL DE PERNAMBUCO; PEDRO MARQUES DA SILVEIRA, CNPAF; WILSON MOZENA LEANDRO, UFG; RILNER ALVES FLORES, UFG; DEYVID DIEGO CARVALHO MARANHÃO, UFRRJ.
Título: | DRIS standards for nutritional evaluation of Phaseolus vulgaris in Cerrado, Goiás State, Brazil.
Ano de publicação: | 2018
Fonte/Imprenta: | Australian Journal of Crop Science, v. 12, n. 2, p. 274-280, 2018.
Idioma: | Inglês
Conteúdo: | The knowledge of nutritional requirements of beans, the efficiency of soil acidity correction and the fertilization programs are essential to increase productivity. The Integrated Recommendation and Diagnosis System (DRIS) assists with nutritional diagnosis of cultivated plants based on existing interactions between nutrients and the hierarchizing of limitations. This study aimed at establishing standards using the DRIS method for areas of production of irrigated common beans and at determining the most limiting nutritional factors to production using leaf analyses interpreted by concentration ranges and DRIS. Eighteen different beanproducing areas were selected in a central pivot irrigation system, from which 82 sampling points were established to collect leaves of crop and determine their nutritional contents. The reference population had productivity of over 3,000 kg ha- 1. Using DRIS, we determined that phosphorus is the most limiting nutrient regarding its deficiency, with great sensitivity to diagnose nutritional problems of plants, especially micronutrients. Phosphorus (68.3%), molybdenum (65.9%), iron (64.6 %) and sodium (63.4%) and are nutrients with highest percentage of samples presenting levels below adequate according to sufficiency ranges for plants. Using DRIS, we can evaluate interactions among nutrients and determine of the magnitude of crop nutritional limitation whether due to deficiency or excess. These results may indicate which nutrients are limiting the crop productive capacity, allowing greater efficiency in its correction in soil.
Palavras-Chave: | DRIS.
Thesagro: | Análise Foliar; Feijão; Nutrição Vegetal.
Thesaurus Nal: | Beans; Leaf area; Plant micronutrients.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/188771/1/35352.pdf
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (35352-1) - UPC - AP - DD - 2018 -  - 2018 - DIS