Atividade microbiana em lavoura cafeeira na transição agroecologica.
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Data
2007
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Resumo
O experimento foi instalado em uma lavoura cafeeira anteriormente cultivada de forma convencional há seis anos, a qual foi submetida ao processo de transição para o sistema orgânico. Durante o primeiro ano de transição agroecológica avaliaram-se os efeitos dos manejos orgânico e convencional sobre os atributos microbiológicos do solo. Empregou-se o delineamento látice balanceado 4x4 com cinco repetições em esquema fatorial 3x2x2 mais quatro tratamentos adicionais. Foram utilizadas três fontes de matéria orgânica (farelo de mamona, esterco bovino e cama de aviário), com e sem palha de café fermentada, com e sem a adubação verde com feijão-guandu (Cajanus cajan L.) nas entrelinhas do cafeeiro e pulverizações com o biofertilizante supermagro. O manejo convencional constou da aplicação de sulfato de amônio e o cloreto de potássio e de adubação foliar convencional. Não há diferença na biomassa microbiana, em função dos manejos orgânico e convencional, entretanto nos tratamentos de manejo orgânico é maior a diversidade biológica das populações de fungos micorrízicos arbusculares.
The experiment was set in a coffee crop previously cultivated in a conventional way for six years, which was submitted to the transition process for the organic system. During the first year of agroecological transition, the effects of organic and conventional managements were evaluated in the microbiological attributes of the soil. Experimental design used was the lattice balanced 4x4 with five replications in factorial scheme 3x2x2 and four more additional treatments Three sources of organic matter were used (castor bean bran, bovine manure and boiler litter) with or without straw of fermented coffee, and with or without the green manuring with (Cajanus cajan L.), in the line spaces of the coffee crop and pulverizations with the biofertilizer “supermagro”. The conventional management had the application of ammonium sulfite and the potassium chloride, and conventional foliar manuring. There isn’t difference in the microbial biomass because of the organic and conventional managements; therefore, the organic ones have a bigger biological diversity in the populations of arbuscular mycorrhizae fungi.
The experiment was set in a coffee crop previously cultivated in a conventional way for six years, which was submitted to the transition process for the organic system. During the first year of agroecological transition, the effects of organic and conventional managements were evaluated in the microbiological attributes of the soil. Experimental design used was the lattice balanced 4x4 with five replications in factorial scheme 3x2x2 and four more additional treatments Three sources of organic matter were used (castor bean bran, bovine manure and boiler litter) with or without straw of fermented coffee, and with or without the green manuring with (Cajanus cajan L.), in the line spaces of the coffee crop and pulverizations with the biofertilizer “supermagro”. The conventional management had the application of ammonium sulfite and the potassium chloride, and conventional foliar manuring. There isn’t difference in the microbial biomass because of the organic and conventional managements; therefore, the organic ones have a bigger biological diversity in the populations of arbuscular mycorrhizae fungi.
Descrição
Trabalho apresentado no Simpósio de Pesquisa dos Cafés do Brasil (5. : 2007 : Águas de Lindóia, SP). Anais. Brasília, D.F. : Embrapa Café, 2007.
Palavras-chave
agroecologia, manejo, café orgânico, microbiologia do solo, conversão, Coffea., agroecology, management, organic coffee, soil microbiology, conversion, Coffea.
Citação
Vanessa Cristina de Almeida THEODORO; Antônio Nazareno Guimarães MENDES; Rubens José GUIMARÃES; Henrique Dias FRANCO; Éder Carvalho SANDY.Atividade microbiana em lavoura cafeeira na transição agroecologica.In: Simpósio de Pesquisa dos Cafés do Brasil (5. : Águas de Lindóia, SP : 2007). Anais. Brasília, D.F. : Embrapa - Café, 2007. (1 CD-ROM), 4p