Navegando por Autor "Oliveira, Rafael Alvim Gonzaga de"

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    Macrofauna invertebrada do solo em cana-de-açúcar sob cultivo orgânico
    (Universidade Estadual do Norte do Paraná, 2016-03-14) Oliveira, Rafael Alvim Gonzaga de; Rando, Jael Simões Santos; https://orcid.org/0000-0002-5191-2996; http://lattes.cnpq.br/2794627489819518; Rando, Jael Simões Santos; https://orcid.org/0000-0002-5191-2996; http://lattes.cnpq.br/2794627489819518; Mihsfeldt, Laila Herta; https://orcid.org/0000-0001-6619-8652; http://lattes.cnpq.br/5443619889613070; Bartz, Marie Luise Carolina; https://orcid.org/0000-0003-3637-8075; http://lattes.cnpq.br/9357055096122837; Macedo, Rogério Barbosa; http://lattes.cnpq.br/6273285344497488; Santiago, Debora Cristina; https://orcid.org/0000-0002-2912-9209; http://lattes.cnpq.br/6351034014282018
    In an organic production system, the environment is preserved. Therefore, products that, directly or indirectly, affect the local ecology has its use unauthorized, favoring the present biota. The soil macrofauna of invertebrate, organisms with at least 10 mm in length and greater than 2 mm in width, are essentials for the full function of the soil ecosystem, they are known as soil engineers. This study aimed to analyze the invertebrates macrofauna biodiversity in a cane sugar organic farming system. Samples were collected in Jaboti, PR in summer and winter of 2014 and 2015. In each analysis, 10 sampling points were defined in an random order, equidistant at least 10 meters. In each point, a portion of land was collected (the measures 25 x 25 x 30 cm), and divided into three strata, namely, 0-10, 10-20, 20-30cm. Each stratum was packed in a sealed plastic bag. Three pitfall traps were placed together, and these remained in place for 48 hours. The samples were transported to the laboratory to be sorted and cataloged in direct observation with the help of forceps. 5.760 ind/m² were found, to the edaphic fauna and 1.223 individuals to the epigeic fauna. Three species of earthworms were identified, and Pontoscolex corethrurus was the most abundant of them. As for arthropods, the most dominant order Hymenoptera was represented mostly by the family Formicidae. The study site, a monoculture in a organic system, indicative of disturbance to the environment, but supplies conditions to the presence of benefic insects in the agroecologic system.