Padrões foliares e de solo para a cultura do feijoeiro comum no vale do Rio dos Bois – Goiás

• Autor(a) principal: Paiva Júnior, Edmar Franco de
• Data de Publicação: 2011
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFG
• dARK ID: ark:/38995/0013000007cj8
• Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tede/4984
• topic: Estado nutricional; DRIS; Índices; Faixas de suficiência; Nutritional status; Indices; Sufficiency ranges; CIENCIAS AGRARIAS::AGRONOMIA

Current reference values are lacking for the crop of common bean in the state of Goias. Among the methods used for interpretation of foliar and soil analysis have been the sufficiency ranges, as established by usage and technique of the Integrated System of Diagnosis and Recommendation (DRIS), still in its infancy for most crops. The DRIS has proven effective as a method for nutritional diagnosis in different cultures. Despite the evident application in the foliar results interpretation has currently extended the DRIS to interpret soil data. However has not been used in the bean crop, mainly in the state of Goiás. The aim of this study was to obtain DRIS standards and sufficiency ranges for leaf and soil for bean winter crop in the micro region of Vale do Rio dos Bois – Goiás. Were monitored 31 commercial areas in the winter season of 2010 year, extracting from the same foliar data (N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn) and soil (Ca, Mg, K, P, S, Zn, B, Cu, Fe, Mn, CTC, V% and MO). The leaf samples were collected at the R5 growth stage (flowering). Were removed 80 leaves per tillage, 20 per quadrant in each point, taking the first mature leaf from the upper leafs. Were removed 80 simple samples of soil per tillage and 20 per quadrant in depth from 0 to 10 cm to form a composite sample that was sent for analysis. To evaluate the productivity was applied a questionnaire to each producer. Standards of soil and leaves have been developed from a population with productivity greater than 2700 kg ha-1 of beans. Most of the established parameters showed disagreement with the theoretical that has now for the state. The standards DRIS and sufficiency range apply to the nutritional diagnosis of common bean in the study area; it is important the develop of regional standards for the common bean crop; mostly of the analyzed chemical attributes of soil was categorized as excessive; it is important to develop regional reference values to the soil in the Goiás State.