Data/hora: 01/06/2024 02:44:18

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