Data/hora: 16/06/2024 06:35:13

Biblioteca(s): | Embrapa Gado de Corte.
Data corrente: | 15/01/2020
Data da última atualização: | 16/06/2020
Autoria: | SILVA, E. F. da; MELO, M. F.; SOMBRA, K. E. S.; SILVA, T. S.; FRETIAS, D. F. de; COSTA, M. E. da; SANTOS, E. P. da S.; SILVA, L. F. da; SERRA, A. P.; NEITZKE, P. R. de M. C.
Afiliação: | Eulene Francisco da Silva; Marlenildo Ferreira Melo; Kássio Ewerton Santos Sombra; Tatiane Severo Silva; Diana Ferreira de Freitas; Maria Eugênia da Costa; Eula Paula da Silva Santos; Larissa Fernandes da Silva; ADEMAR PEREIRA SERRA, CNPGC; Paula Romyne de Morais Cavalcante Neitzke.
Título: | Organic nitrogen in agricultural systems.
Ano de publicação: | 2019
Fonte/Imprenta: | In: RIGOBELO, E. (Ed.). Nitrogen Fixation. London, UK: IntechOpen, 2019.
DOI: | DOI: http://dx.doi.org/10.5772/intechopen.90242
Idioma: | Inglês
Conteúdo: | This work summarizes information about organic nitrogen (N) in the agricultural system. The organic N forms in soils have been studied by identifying and quantifying the released organic compounds when soils are acid treated at high temperature, in which the following organic N fractions are obtained: hydrolyzable total N, subdivided into hydrolyzable NH4 +-N, amino sugars-N, amino acids-N, and unidentified-N and acid insoluble N, a fraction that remains associated with soil minerals after acid hydrolysis. Nitrogen mineralization and immobilization are biochemical processes in nature. This chapter summarizes how these processes occur in the agricultural system. Then, soluble organic nitrogen (SON), volatilization and denitrification processes, and biological nitrogen fixation (BNF) as a key component of the nitrogen cycle and how it makes N available to plants are also discussed. Finally, we discuss the use of organic fertilizers as N source to satisfy the worldwide demand for organic foods produced without synthetic inputs.
Palavras-Chave: | Fertilização orgânica.
Thesagro: | Fixação de Nitrogênio; Mineralização.
Thesaurus Nal: | Mineralization; Organic foods; Soil organic nitrogen.
Categoria do assunto: | --
Registro original: | Embrapa Gado de Corte (CNPGC)
Exemplares: | CNPGC - (17511-1) - UPC - PL - DD -  -  -  - DIS