Residual effects of superficial liming on tropical soil under no-tillage system

Costa, Cláudio Hideo Martins da; Crusciol, Carlos Alexandre Costa; Neto, J. F. Teixeira; Castro, Gustavo Spadotti Amaral

doi:10.1590/s0100-204x2016000900063

Cited by 21 publications

(14 citation statements)

References 34 publications

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“…The sampling was carried out on 11 occasions at 1, 3, 6, 9, 10, 15, 18, 21, 24, 28, and 31 DAI in this experiment, at which time three identical blank jars were included in the analysis to correct for the CO 2 that was present in the headspace prior to installing the alkali traps [37]. ------9.20 --- 1 pH in a 1:1 ratio; 2 pH in a 1:2.5 ratio; 3 Determined by dichromate oxidation; 4 Determined by dry combustion; 5 Determined by gas chromatography; 6 Determined by steam distillation on Kjeldahl digest; 7 C:N ratio calculated using the TC and TN. EC e (Electrical conductivity measured from a saturated paste extract), EC s (Electrical conductivity measured in a 1:2 soil: H 2 O slurry), LR (Lime requirement, pH 6.5), CEC (Cation-exchange capacity), WHC (Water holding capacity), TC (Total C), IC (Inorganic C), and TN (Total N).…”

Section: Experimental Treatments Design and Co 2 Flux Measurementmentioning

confidence: 99%

“…The largest proportion of these soils exists in the humid tropics [1,3], as the rainfall in this region is often sufficient to severely leach the soil profile [3]. Much of these soils require periodic pH correction to improve and sustain their productivity, which is commonly achieved through the application of agricultural lime (aglime) [3,4]. Aglime, however, can serve as a source of CO 2 to the atmosphere when applied to these soils, thereby contributing to global warming and climate change [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Organic Residues and Ammonium Effects on CO2 Emissions and Soil Quality Indicators in Limed Acid Tropical Soils

2019

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Aglime (agricultural lime), commonly applied to acid soils to increase the soil pH and productivity, may lead to the release of CO2 into the atmosphere or to carbon (C) sequestration, although the processes involved are not fully understood. As large acreages of arable land are limed annually, exploring soil management practices that reduce aglime-induced CO2 emissions from acid soils while maintaining or improving the soil quality is paramount to mitigating the effects of global climate change. This study, therefore, assessed the effects of organic residues and ammonium on CO2 emissions and soil quality indicators in two limed soils. Two contrasting acid soils (Nariva series, Mollic Fluvaquents and Piarco series, Typic Kanhaplaquults) were amended with varying combinations of aglime (0% and 0.2% w/w CaCO3), organic residue (0% and 5% w/w biochar or poultry litter), and NH4-N (0% and 0.02% w/w) and were incubated in 300 mL glass jars for 31 days. The sampling for CO2 was performed on 11 occasions over the course of the incubation, while soil sampling was conducted at the end. The results indicate that aglime application significantly (p < 0.05) increased the cumulative CO2 emissions in all cases except with the addition of poultry litter. Alternatively, ammonium did not regulate the effect of aglime on CO2 emissions, which was l because of the low rate at which it was applied in comparison to aglime. The results also showed that poultry litter significantly (p < 0.05) increased the soil electrical conductivity (EC), available nitrogen (N), and pH, especially in the Piarco soil, while the hardwood biochar had little to no effect on the soil properties. Our findings indicate the potential for utilizing poultry litter to reduce the impact of aglime on CO2 emissions while improving the soil quality. Further studies utilizing 13C to trace aglime CO2 emissions are, however, required to identify the mechanism(s) that contributed to this reduction in the emissions.

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Section: Experimental Treatments Design and Co 2 Flux Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Organic Residues and Ammonium Effects on CO2 Emissions and Soil Quality Indicators in Limed Acid Tropical Soils

2019

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“…The effects of lime, management system/land use practices, and organic residue addition on Al KCl levels have been widely evaluated (Brunetto et al, 2012;Barcellos, Motta, Pauletti, Silva, & Barbosa, 2015;Costa, Crusciol, Ferrari Neto, & Castro, 2016;Baquy, Li, Xu, Mehmood, & Xu, 2017;Barbosa et al, 2017b;Machado, Camara, Sampaio, Pereira, & Ferraz, 2017;Rocha et al, 2017). These data were obtained from the most superficial soil layers, excluding less weathered deep horizons with organic matter contents close to zero.…”

Section: Introductionmentioning

confidence: 99%

<b>Depth distribution of exchangeable aluminum in acid soils: A study from subtropical Brazil

et al. 2018

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“…Sistemas agrícolas sustentáveis devem impedir a manutenção de solos expostos e não plantados na entressafra (COSTA et al, 2016). O advento do plantio direto como sistema de cultivo promoveu avanços incalculáveis do ponto de vista agronômico, com consequências até então amplamente estudadas, todavia nem sempre compreendidas integralmente pelos que o promovem.…”

Section: Os Sistemas De Manejounclassified

Fracionamento do fósforo no solo em função dos sistemas de manejo

Costa¹

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AGRADECIMENTOSInicialmente agradeço a Deus, que em Cristo Jesus anunciou nossa esperança e, com base em seu sacrifício, busco me aprimorar a cada dia para cumprir seu chamado e dar um novo passo em direção ao que Ele tem reservado para mim. Sem Ele, não haveria uma lista de pessoas e instituições incríveis e essenciais para que este trabalho tomasse forma. Agradeço aos meus maiores espelhos terrenos, meu pai Denilson e minha mãe Ana Paula, que sempre carregam um percentual de todas as minhas conquistas por merecimento. E que o agradecimento se estenda ao meu irmão, Danrlley, meu amigo inseparável e minha namorada Lídia, minha eterna e principal companheira. Guardo um agradecimento especial ao meu orientador Prof. Dr. José Luiz Rodrigues Torres, com quem compartilhei muitos ensinamentos e compreendi a relevância daquilo que hoje eu profissionalmente faço com tanto prazer.Agradeço aos muitos amigos que tiveram sua parte nessa conquista, em especial ao Venâncio Rodrigues e Silva, pois juntos dividimos intensas dificuldades e superamos novos obstáculos.

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Residual effects of superficial liming on tropical soil under no-tillage system

Cited by 21 publications

References 34 publications

Organic Residues and Ammonium Effects on CO2 Emissions and Soil Quality Indicators in Limed Acid Tropical Soils

Organic Residues and Ammonium Effects on CO2 Emissions and Soil Quality Indicators in Limed Acid Tropical Soils

<b>Depth distribution of exchangeable aluminum in acid soils: A study from subtropical Brazil

Fracionamento do fósforo no solo em função dos sistemas de manejo

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