Data/hora: 21/06/2024 00:27:24

Biblioteca(s): 	Embrapa Soja.	
Data corrente: 	10/12/1992	
Data da última atualização: 	10/12/1992	
Autoria: 	SAKAMOTO, K.; OBA, Y.	
Afiliação: 	Faculty of Horticulture, University of Chiba, Matsudo, 272 Japan.	
Título: 	Relationship between the amont of organic material applied and soil biomass content.	
Ano de publicação: 	1991	
Fonte/Imprenta: 	Soil Science and Plant Nutrition, v.37, n.3, p.387-397, 1991.	
Idioma: 	Inglês	
Conteúdo: 	The relationship between the amont of organic material applied and soil biomass content was examined in soils amended with various organic materials in 4 upland experimental fields. The values of the soil biomass measured by the direct microscopic method (DMM), ATP content, and soil respiration rate in the soil amended with organic material were greater than those in the soil amended with inorganic fertilizer in all the fields. Soil biomass measured by the DMM and ATP content were highly correlated with the sum of the amount of hot water-soluble organic substance, carbohydrate, and crude protein components in the organic material applied in all the fields. Soil respiration rate was also highly correlated with the sum of the amount of these components applied in the 3 fields. These results suggest that hot water-soluble organic substance, carbohydrate, and crude protein components in organic material are closely related to the increase of the soil biomass. The difference in the soil biomass C content calculated from the ATP content among the 4 fields generally paralleled the difference in the soil total C content. The ratio of biomass C to the total C in the field with a high total C content was lower than that in the field with a low total C content. The rates of increase of the soil biomass measured by the DMM, ATP content, and soil respiration rate in the field with short-term application of organic material were higher than those in the field with long-term application. These findings suggest that the rate of in	
Palavras-Chave: 	Aplicacao; Long-term application; Longo prazo; Material organico; Organic material application; Soil biomass; Soil respiration rate.	
Thesagro: 	ATP; Biomassa; Solo.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Soja (CNPSO)	
Exemplares: 	CNPSO - (14198-1) - ADD - SP - -- - 9921 -  - 9921 - DIS