Registro Completo |
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: |
-- |
Marc: |
LEADER 01633naa a2200229 a 4500 001 1370048 005 2010-12-15 008 1985 bl --- 0-- u #d 100 1 $aBOLTON JUNIOR, H. 245 $aSoil microbial biomass and selected soil enzyme activities$beffect of fertilization and cropping practices. 260 $c1985 520 $aSelected 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. 650 $abiomass 650 $amicrobiology 650 $asoil 650 $aBiomassa 650 $aMicrobiologia 650 $aSolo 700 1 $aELLIOTT, L. F. 700 1 $aPAPENDICK, R. I. 700 1 $aBEZDICEK, D. F. 773 $tSoil Biology Biochemistry, Oxford$gv. 17, n. 3, p. 297-302, 1985.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
|