Soil Fumigation
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Microbial Properties of Soil in Different Coverages in the Colombian Amazon
ABSTRACT Changes in coverage affect the activity of soil’s microbial communities, affecting the carbon and nitrogen cycle. The variability of biochemical properties in different coverages (native forest, forest plantation, silvopastoral system and pasture) located in the northwest of the Colombian Amazon was evaluated. Edaphic properties were determined as
Floresta Ambient.. Publicado em: 30/09/2019
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2. Soil Microbial Biomass as an Edge Effect Indicator in Semi-Deciduous Seasonal Forest Fragments
ABSTRACT This work had the objective to evaluate the activity and microbial biomass of the soil as an indicator of edge effect in Semi-Deciduous Seasonal Forest fragments. Three fragments of different sizes (small, medium and large) located in the Southwest region of Bahia state were evaluated, in which three sampling ranges were defined in each, and soil sa
Floresta Ambient.. Publicado em: 12/09/2019
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3. Potential of soil fumigation with mustard essential oil to substitute biofumigation by cruciferous plant species
Soil fumigation with the synthetic essential oil of mustard (93% allyl isothiocyanate) (EOM) was evaluated as a substitute of bio-fumigation with cruciferous plant species, using Sclerotium rolfsii and Sclerotinia sclerotiorum as test pathogens, together with its non-target effect on the general population of soil microorganisms. The mortality of the sclerot
Trop. plant pathol.. Publicado em: 09/07/2013
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4. Biomassa microbiana do solo.
ABSTRACT: The microbial biomass, respiration and their derivative indexes are proposed as indicators of the state and changes of the soil organic matter. This document presents basic information about these indicators and the two methodologies most used for C-microbial biomass determinations, the fumigation-incubation and the fumigation-extraction methods. T
Planaltina. Publicado em: 2011
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5. Biomassa microbiana em amostras de solos secadas ao ar e reumedecidas.
O objetivo do trabalho foi avaliar a viabilidade do condicionamento de amostras como terra fina secada ao ar (TFSA) por curto período, para a determinação do carbono da biomassa microbiana (BMS-C), pelo método da fumigação-extração, e verificar a respiração microbiana basal (RB) do solo. O condicionamento como TFSA, procedendo-se à fumigação par
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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6. The effects of arbuscular mycorrhizal fungi inoculation on Euterpe oleracea Mart. seedlings.
With the objective of verifying the response of Euterpe oleracea Mart. seedling to seven arbuscular mycorrhizal fungi species, an experimental trial was carried out under greenhouse conditions. Seeds of E. oleracea were sown in carbonized rice husk. Germinating seeds were initially transferred to plastic cups, containing fumigated Reddish Yellow Quartz Sand
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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7. Soil fumigation with mustard essential oil to control fusarium wilt of tomato / Fumigação de solo com óleo essencial de mostarda para o controle da murcha de fusário em tomateiro
The fusarium wilt caused by Fusarium oxysporum f. sp. lycopersici (Fol), is one of the major problems in tomato cultivation especially in green house crop. The soil infestation with this pathogen can make the green house cultivation unviable, therefore periodic fumigation is recommended to maintain low inoculum level in soil. This study was done to evaluate
Publicado em: 2009
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8. Biomassa microbiana em diferentes sistemas de manejo do solo e de culturas típicas da região norte do Paraná
The objective of this work was to evaluate the soil microbial biomass (SMB) as a parameter bioindicador of changes in agroecosystem under different soil management and crop rotation systems. The SMB was examined in four different Long-term experiments: In experiment 1: with 26 year-old field experiment established consisting of four systems soil management:
Publicado em: 2008
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9. Atributos microbiológicos de um latossolo bruno submetido a diferentes sistemas de manejo e calagem / Soil microbiological atributtes of a brown latosol submitted to different management systems and liming
This work was conducted in Guarapuava, state of Paraná, in a southern brazilian oxisol, in a trial established in 1978. The aim of this work was to analyse the effect of different soil management systems and liming on the microbial biomass and its activity related to C and N in the soil. The managment systems evaluated were: no-tillage with lime incorporate
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2007
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10. Doses de nitrogênio e seu efeito nos indicadores microbiológicos de qualidade de solo na cultura da cevada
The objective of this study was to evaluate the effect of different nitrogen doses and soil depths on microbial biomass carbon and nitrogen in a sandy textured Oxisol, cultivated with barley. The experiment was installed in June, 2004, in an area located at Embrapa Cerrados, Federal District, which had been cultivated with millet for three years and subseque
Publicado em: 2006
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11. Atividade e diversidade da biomassa microbiana em diferentes sistemas de manejo do solo e de culturas no norte do Estado do Parana / Activity and diversity of microbial biomass under different soil and crop management systems in the north of the state of Parana (Brazil)
The microbial biomass carbon (MB-C) and nitrogen (MB-N), basal respiration and metabolic quotient (qCO2) were evaluated in a Rhodic Eutrudox of the North Region of the State of Paraná under different soil and crop management systems. The experimental area was established in 1988/1989 at the experimental station of Embrapa Soja, Londrina, Paraná, and consis
Publicado em: 2005
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12. MÃtodos de Controle de Plantas Daninhas na Cultura do Cafeeiro e seus Efeitos na AgregaÃÃo e em FraÃÃes da MatÃria OrgÃnica do Solo / Weed Control Methods in Coffee (Coffea arÃbica L.) And Yours Effects On Soil Aggregation and Soil Organic Matter Fractions.
The coffee crop expansion in Latosol occur with high invest in varieties, fertilization, irrigation and control of insects and plant diseases. The weeds in coffee crop should be control for to avoid production loss and make easier the crop management. This work aimed to study the effect of weed control methods in coffee on soil aggregation and also on soil o
Publicado em: 2005