Portal de Periódicos da CAPES

Artigo Acesso aberto Produção Nacional Revisado por pares

BIBTEX RIS

Carbono da biomassa microbiana e micorriza em solo sob mata nativa e agroecossistemas cafeeiros

2003; Editora da Universidade Estadual de Maringá (Eduem); Volume: 25; Issue: 1 Linguagem: Inglês

10.4025/actasciagron.v25i1.2468

1807-8621

Vanessa Cristina de Almeida Theodoro, Maria Inês Nogueira Alvarenga, Rubens José Guimarães, Moisés Mourão Júnior,

Soil Carbon and Nitrogen Dynamics

The microbiological properties of dystrophic red Latosol (LVd) under coffee trees in systems of organic (O), in conversion (E) and conventional (CV) production, were studied related to a patch of native wood (MN) on two neighboring farms situated in the town of Santo Antonio do Amparo, state of Minas Gerais, Brazil. The farming presents the same cultivar (Acaia IAC-474-19) and age (five years). The microbiological sampling of the soil was accomplished in dry (July/1999) and rainy (December/1999) periods. Biomass Carbon presented greater values in rainy season in all systems. No differences were recorded for the mycorrhizal colonization. In relation to the identified species of arbuscular mycorrhizal fungi, the frequency of occurrence was greater for the genera Acaulospora, Glomus and Gigaspora, in all treatments.