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| Nunes,Anita Bueno de Camargo; Saggin Júnior,Orivaldo José; Silva,Eliane Maria Ribeiro da; Pinto,Flávio Araújo; Santos,Jessé Valentim dos; Carneiro,Marco Aurélio Carbone. |
| Abstract: The objective of this work was to evaluate the effect of the use of steel slag as a soil acidity corrective and of mycorrhizal fungi associated with phosphate fertilization on corn plants. The study was performed in a greenhouse, using 3-kg pots with a Typic Haplorthox, in a 4x5x2 factorial arrangement, with four acidity correction treatments (C1, correction with dolomitic limestone at a dose of 4 Mg ha-1; C2, correction with steel slag at a dose of 4 Mg ha-1; C3, correction with a 1:1 mixture of 2 Mg ha-1 dolomitic limestone and 2 Mg ha-1 steel slag; and C4, control, without pH correction), five phosphorus doses (0, 42, 95, 213, and 480 mg dm-3), and the presence or absence of two arbuscular mycorrhizal fungi (Rhizophagus clarus and Gigaspora... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Acidity; Limestone; Root colonization; Symbiosis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000103300 |
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| Souza,Edicarlos Damacena de; Silva,Camila Rodrigues Menezes da; Pinto,Flávio Araújo; Carneiro,Marco Aurélio Carbone; Paulino,Helder Barbosa; Pacheco,Leandro Pereira; Terra,Flávia Dias; Laroca,Jackeline Vieira dos Santos. |
| Abstract: The objective of this work was to evaluate changes in soil quality due to different times of adoption of the no-tillage system in “murundu” (mound) fields converted to agriculture, as well as to identify the best indicators to explain these changes. The study was carried out on a Plinthic Altisol, in the municipality of Portelândia, in the state of Goiás, Brazil. The treatments consisted of different times of conversion and of adoption of the no-tillage system - 8, 12, and 17 years - and of native area between the mounds and on top of the mounds (reference area). After 17 years of the adoption of no-tillage, there was an increase in organic carbon and nitrogen, as well as in their particulate fractions in relation to the reference area. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hydromorphic soils; Microbial biomass; Organic matter; Plinthosols. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000103801 |
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| Neis,Lucimeire; Paulino,Helder Barbosa; Souza,Edicarlos Damacena de; Reis,Edésio Fialho dos; Pinto,Flávio Araújo. |
| O revolvimento de áreas em plantio direto (PD) há vários anos e o uso de gesso agrícola são práticas observadas entre os produtores na região do sudoeste de Goiás. Este trabalho foi realizado com o objetivo de avaliar o efeito da aplicação de doses de gesso agrícola (0, 1, 2, 4 e 6 Mg ha-1) em alguns atributos químicos em profundidade no solo e no rendimento de grãos de soja em plantio direto com revolvimento (PDR) e sem revolvimento (PDS). O delineamento foi em blocos completos ao acaso, em esquema de parcelas subsubdivididas, com quatro repetições. A área vinha sendo conduzida há vários anos em PD, em um Latossolo Vermelho-Amarelo distrófico textura argilosa, no sudoeste goiano, com os teores de Ca2+, Mg2+, K+, sulfato e CTC efetiva sendo determinados... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cátions; Cerrado; Sulfato. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000200014 |
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| Pinto,Flávio Araújo; Souza,Edicarlos Damacena de; Paulino,Helder Barbosa; Curi,Nilton; Carneiro,Marco Aurélio Carbone. |
| Phosphorus (P) sorption by soils is a phenomenon that varies depending on soil characteristics, influencing its intensity and magnitude, which makes it a source or drain of P. The objective of this study was to determine the Maximum Phosphorus Adsorption Capacity (MPAC) and desorption of P from soils under native Savanna Brazilian and verify the correlation between MPAC and P Capacity Factor (PCF) with the chemical and physical properties of these soils. The study was conducted in seven soils under native Savannas. The Langmuir isotherms were adjusted from the values obtained in sorption assays, being evaluated the MPAC, the energy adsorption (EA) and PCF, which was calculated according to the levels of P-adsorbed and P-sorbed. Values of MPAC were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phosphorus adsorption capacity; Langmuir; Soil fertility management; Correction of P deficiency. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000600005 |
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