Data/hora: 16/06/2024 22:46:12

Biblioteca(s): 	Embrapa Tabuleiros Costeiros.	
Data corrente: 	28/09/1998	
Data da última atualização: 	15/12/2010	
Autoria: 	BOLTON JUNIOR, H.; ELLIOTT, L. F.; PAPENDICK, R. I.; BEZDICEK, D. F.	
Título: 	Soil microbial biomass and selected soil enzyme activities:effect of fertilization and cropping practices.	
Ano de publicação: 	1985	
Fonte/Imprenta: 	Soil Biology Biochemistry, Oxford, v. 17, n. 3, p. 297-302, 1985.	
Idioma: 	Inglês	
Conteúdo: 	Selected microbiological properties of soils receiving fertilizer management regimes were studied from adjoining wheat farms in the higly productive palouse region of eastern Washington. Since 1909, the only N input to the soil of farm Management System 1 has been through leguminous green manure crops consisting most recently of Austrian wintwer peas(Pisum sativum spp. arvense L., Poir), plus native soil fertility for N and all other plant nutrients. The soil farm management System 2 received regular applications of anhydrous ammonia, P and SD at recommended rates the for last 30 yr. There were no differences in numbers of soil microorganisms as determined by plate counts; however, soil from management system 1 das significantly higher levels of urease, phosphatase and dehydrogenase, at all three samplings and significantly higher soil microbial biomass at the first two samplings. The data ondicate that management system 1 soil had a larger and more active soil microflora.	
Thesagro: 	Biomassa; Microbiologia; Solo.	
Thesaurus Nal: 	biomass; microbiology; soil.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Tabuleiros Costeiros (CPATC)	
Exemplares: 	CPATC - (17034-1) - ADD - SP - PP - SP4441 -  - SP4441 - DIS