Alleviating soil acidity through plant organic compounds

Meda, Anderson Rotter; Cassiolato, Marcelo E.; Pavan, Marcos Antonio; Miyazawa, Mário

doi:10.1590/s1516-89132001000200012

Cited by 23 publications

(28 citation statements)

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“…Besides the soil samples were taken near the edge of the tree canopy, at the site of the fertilizers application, where the acidification processes is greater. The cultivation of groundcover between the orange trees influenced in a differentiated way the soil acidification, as was previously observed with other cover crops (MIYAZAWA et al, 1992;MEDA et al, 2001). The organic matter addition to the soil may contribute to the reduction of organic anion losses in the system and to an increase in the H + consumption.…”

Section: Chemical Propertiessupporting

confidence: 65%

“…The organic matter addition to the soil may contribute to the reduction of organic anion losses in the system and to an increase in the H + consumption. The low Al saturation in the inter-row area can be attributed to the pH increase, which reduces the Al solubility through Al complexation with organic compounds (MIYAZAWA et al, 1992;MEDA et al, 2001). Several plants have the capacity to alleviate the soil acidity through watersoluble plant organic compounds (MEDA et al, 2001).…”

Section: Chemical Propertiesmentioning

confidence: 99%

“…The low Al saturation in the inter-row area can be attributed to the pH increase, which reduces the Al solubility through Al complexation with organic compounds (MIYAZAWA et al, 1992;MEDA et al, 2001). Several plants have the capacity to alleviate the soil acidity through watersoluble plant organic compounds (MEDA et al, 2001). This chemical change is associated with the concentrations of basic cations in the plant extract: the higher the concentration the greater the effects in alleviating soil acidity.…”

Section: Chemical Propertiesmentioning

confidence: 99%

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Soil carbon and nitrogen mineralization under different tillage systems and Permanent Groundcover cultivation between Orange trees

Balota

Auler

2011

Rev. Bras. Frutic.

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-The objective of this work was to evaluate the alterations in carbon and nitrogen mineralization due to different soil tillage systems and groundcover species for intercropped orange trees. The experiment was established in an Ultisol soil (Typic Paleudults) originated from Caiuá sandstone in northwestern of the state of Paraná, Brazil, in an area previously cultivated with pasture (Brachiaria humidicola). Two soil tillage systems were evaluated: conventional tillage (CT) in the entire area and strip tillage (ST) with a 2-m width, each with different groundcover vegetation management systems. The citrus cultivar utilized was the 'Pera' orange (Citrus sinensis) grafted onto a 'Rangpur' lime rootstock. The soil samples were collected at a 0-15-cm depth after five years of experiment development. Samples were collected from under the tree canopy and from the inter-row space after the following treatments: (1) CT and annual cover crop with the leguminous Calopogonium mucunoides; (2) CT and perennial cover crop with the leguminous peanut Arachis pintoi; (3) CT and evergreen cover crop with Bahiagrass Paspalum notatum; (4) CT and cover crop with spontaneous B. humidicola grass vegetation; and (5) ST and maintenance of the remaining grass (pasture) of B. humidicola. The soil tillage systems and different groundcover vegetation influenced the C and N mineralization, both under the tree canopy and in the inter-row space. The cultivation of B. humidicola under strip tillage provided higher potential mineralization than the other treatments in the inter-row space. Strip tillage increased the C and N mineralization compared to conventional tillage. The grass cultivation increased the C and N mineralization when compared to the others treatments cultivated in the inter-row space.

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Section: Chemical Propertiessupporting

confidence: 65%

Section: Chemical Propertiesmentioning

confidence: 99%

Section: Chemical Propertiesmentioning

confidence: 99%

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Soil carbon and nitrogen mineralization under different tillage systems and Permanent Groundcover cultivation between Orange trees

Balota

Auler

2011

Rev. Bras. Frutic.

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“…A calagem também não proporcionou alterações significativas no pH, na capacidade de neutralização do hidrogênio (CNH), nos teores de cátions solúveis (Ca 2+ , Mg 2+ , K + e Na + ) e na condutividade elétrica (CE) do extrato de aveia preta. As características da cobertura de aveia preta utilizada foram semelhantes às obtidas em outros trabalhos realizados em laboratório para CNH (Miyazawa et al, 1993), pH e soma de cátions (Franchini et al, 1999b(Franchini et al, , 2001Meda et al, 2001). …”

Section: Resultsunclassified

Calagem superficial e cobertura de aveia preta antecedendo os cultivos de milho e soja em sistema plantio direto

Caires

Garbuio

Alleoni

et al. 2006

Rev. Bras. Ciênc. Solo

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RESUMOOs resíduos de plantas de cobertura podem mobilizar cátions no solo e beneficiar a ação da calagem superficial, por meio da liberação de ácidos orgânicos de baixo peso molecular da fração solúvel dos resíduos. Entretanto, faltam estudos no campo que comprovem tais efeitos em sistema plantio direto. Para avaliar as alterações químicas do solo e a resposta do milho e da soja com a aplicação de doses de calcário dolomítico na superfície (0,0, 2,5, 5,0 e 7,5 t ha -1 ), na ausência e na presença de cobertura de aveia preta, foi realizado um experimento em um Latossolo Vermelho distrófico textura argilo-arenosa, há cinco anos no sistema plantio direto, em Ponta Grossa (PR) .

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“…Considerando que a amostragem do solo foi realizada sob a vegetação da Braquiaria decumbens e controlada por meio de roçada mecânica nas entrelinhas do pomar de laranja, houve, durante o período de estudo, a contínua formação de resíduos vegetais por essa gramínea que podem ter contribuído para a maior mobilidade do Mg 2+ no perfil do solo comparada ao Ca 2+ . Contudo, deveuse considerar a menor eficiência das espécies de pastagens como as gramíneas Paspalum notatum e Cynodon nlenfuensis no mecanismo da mobilidade de hidrossolúveis, comparada à da aveia preta e tremoço azul, conforme estudo realizado por Meda et al (2001).…”

Section: Resultsunclassified