Revisão bibliográfica: avaliação do método de Kjeldahl na determinação de nitrogênio e sua aplicação na análise foliar

Abstract

Currently, studies related to nitrogen analysis and its wide employability have shown how wide and broad is its field of application. Being widely diffused in the academic environment and applied in the daily routine of companies. The aim of this study was to describe the importance of the Kjeldahl method and to evaluate its wide employability in the field of agriculture. Also presenting alternative or similar methods as a way of demonstrating their effects and comparing their applied importance to applied foliar analysis to agriculture. Its specificities were compared to the other existing methods in the scientific literature, comparing them to the Kjeldahl method. A literature review was carried out with its respective history, objectives, importance and references of articles from specialized magazines and books. The results demonstrate that although there are several studies indicating changes and improvements in the Kjeldahl method, we can consider that the method is still considered satisfactory when applied to leaf nitrogen analysis, and that the other comparative studies are extremely important as regards their scientific contribution and technology for science.