Data/hora: 20/06/2024 18:05:24

Biblioteca(s): | Embrapa Soja.
Data corrente: | 10/12/1992
Data da última atualização: | 10/12/1992
Autoria: | SAKAMOTO, K.; YOSHIDA, T.; SATOH, M.
Afiliação: | Faculty of Horticulture, University of Chiba, Matsudo, 271 Japan.
Título: | Comparison of carbon and nitrogen mineralization between fumigation and heating treatments.
Ano de publicação: | 1992
Fonte/Imprenta: | Soil Science and Plant Nutrition, v.38, n.1, p.133-140, 1992.
Idioma: | Inglês
Conteúdo: | We carried out an experiment to compare the amounts of carbon and nitrogen mineralized by chloroform fumigation and heating (50, 100, 150, and 200oC) in order to clarify the origin of the carbon and nitrogen mineralized by the drying treatment, for the development of a soil fertility index. The amount of carbon mineralized from the fumigated soil was approximately equal to that from the soil heated at 50oC. The amount of nitrogen mineralized from the fumigated soil was equal to that from the soil heated at 50 and 100oC. The decrease in the number of bacteria in the fumigated soil was approximately equal to that in the soil heated at 50oC. On the other hand, the decrease in the number of actinomycetes and fungi in the fumigated soil was equal to that in the soil heated at 100oC. Based on these results, we suggest that the carbon and nitrogen mineralized in the soil heated at 50 and 100oC were mainly derived from the biomass fraction and at above 100oC, mainly from the non-biomass fraction.
Palavras-Chave: | Actinamicetes; Actinomycetes; Carbon and nitrogen mineralization; Carbon mineralization; Chloroform fumigation; Fumigacao cloroformica; Fumigation treatment; Heating treatment; Soil biomass.
Thesagro: | Bactéria; Carbono; Fungo; Mineralização; Nitrogênio; Tratamento Térmico.
Thesaurus Nal: | fungi; nitrogen.
Categoria do assunto: | --
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (14199-1) - ADD - SP - -- - 9920 -  - 9920 - DIS