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| Corrêa,Élida Barbosa; Galvão,José Abrahão Haddad; Bettiol,Wagner. |
| O objetivo deste trabalho foi avaliar a capacidade de microrganismos de manguezais para controlar a podridão radicular causada por Pythium aphanidermatum e para promover o crescimento em pepino hidropônico (Cucumis sativus). Avaliaram-se 19 microrganismos quanto ao controle da doença em mini-hidroponia. Os microrganismos mais promissores para esse fim - Gordonia rubripertincta SO-3B-2 e a mistura dos isolados G. rubripertincta SO-3B-2, MB-P3A-49, MB-P3-C68 e SO-3L-3, de Pseudomonas stutzeri, e Bacillus cereus AVIC-3-6 - foram, posteriormente, testados quanto à promoção de crescimento do pepineiro, em casa de vegetação. Microrganismos de manguezais podem ter importância funcional no controle biológico da podridão radicular causada por P. aphanidermatum e na... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacillus cereus; Cucumis sativus; Gordonia rubripertincta; Pseudomonas stutzeri; Pythium aphanidermatum; Bioprospecção. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000200003 |
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| Bettiol,Wagner; Ghini,Raquel; Galvão,José Abrahão Haddad; Ligo,Marcos Antônio Vieira; Mineiro,Jeferson Luiz de Carvalho. |
| Despite the recent interest in organic agriculture, little research has been carried out in this area. Thus, the objective of this study was to compare, in a dystrophic Ultisol, the effects of organic and conventional agricultures on soil organism populations, for the tomato (Lycopersicum esculentum) and corn (Zea mays) crops. In general, it was found that fungus, bacterium and actinomycet populations counted by the number of colonies in the media, were similar for the two cropping systems. CO2 evolution during the cropping season was higher, up to the double for the organic agriculture system as compared to the conventional. The number of earthworms was about ten times higher in the organic system. There was no difference in the decomposition rate of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil microorganisms; Organic agriculture; Microartropods; Cropping systems; Environmental impacts. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000300023 |
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| Bettiol,Wagner; Ghini,Raquel; Galvão,José Abrahão Haddad; Siloto,Romildo Cássio. |
| Among several alternative agricultural systems have been developed, organic agriculture has deserved increasing interest from. The objective of this paper was comparing both organic (OS) and conventional (CS) tomato cropping systems for varieties Débora and Santa Clara, through an interdisciplinary study. The experiment was set up in a randomized blocks design with six replicates, in a dystrophic Ultisol plots measuring 25 ´ 17 m. Cropping procedures followed by either local conventional or organic growers practices recommendations. Fertilization in the OS was done with organic compost, single superphosphate, dolomitic limes (5L, 60 g, and 60 g per pit), and sprayed twice a week with biofertilizer. Fertilization in the CS was done with 200 g 4-14-8 (NPK)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicum esculentum; Alternative agriculture; Biological control. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000300002 |
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