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Avaliação das comunidades de nematóides do solo em agroecossistemas orgânicos

2009; Editora da Universidade Estadual de Maringá (Eduem); Volume: 31; Issue: 3 Linguagem: Inglês

10.4025/actasciagron.v31i3.433

1807-8621

Eduardo Ariel Mondino, Orlando Carlos Huertas Tavares, Adierson Gilvani Ebeling, Adriana França Figueira, Emmeris Ivan Quintero, Ricardo Luís Louro Berbara,

Nematode management and characterization studies

This study had the objective to evaluate the effects of different agricultural systems in the community of nematodes in an area of the organic farm in Seropédica, Rio de Janeiro State. The treatments consisted of the following cultivations: 1 - pineapple; 2-bean; 3 - consortium corn/bean; 4 - araruta; 5 - pasture and 6 - capoeira. The appraised parameters were: Relative abundance, trophic group, index of Shannon, Dominance, Equitativity, MI, MI2-5, and the faunistic analysis of the nematodes. The relative abundance floated between 0.02 and 0.59, the number of genus varied between 4 and 14 and the accumulated wealth it was of 21 genus. 79% of the nematodes are plant feeders, 14.5% bacterial-feeders, 4.7% omnivorous-predators and 1.1% fungal-feeders. The indices that evaluated the nematodes community allowed establishing them as bioindicators of the quality of the systems of cultivations. The system araruta presented the best agroecological conditions, due to the high values of the indexes of Shannon, Equitatividade, MI, MI2-5 and higher values of SI.