Limites de consistência e propriedades químicas de um latossolo amarelo distrocoeso sob aplicação de diferentes resíduos da cana-de-açúcar

Vasconcelos, Romero Falcão Bezerra de; Cantalice, José Ramon Barros; Silva, Apolino José Nogueira da; Oliveira, V. S.; Silva, Yuri Jacques Agra Bezerra da

doi:10.1590/s0100-06832010000300005

Cited by 13 publications

(14 citation statements)

References 10 publications

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“…Due to the great importance of organic matter to chemical, physical and biological properties of weathered soils, such as the oxisols, in tropical ecosystems (Vasconcelos et al, 2010), many studies aimed to understand the Walkley and Black (1934) (Cantarella et al, 2001). …”

Section: Introductionmentioning

confidence: 99%

Carbon Management Index and Carbon Stock of a Cohesive Oxisol Under Different in the Region Northeast of Brazil

Paes¹,

Dias²,

Fernandes³

et al. 2018

JAS

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The objective of this study was to evaluate the soil organic carbon fractions and the carbon management index (CMI) in a cohesive oxisol under different uses. Conventional cassava planting (CC), pasture (PP), and 7-and 12-year agroforestry systems (AF7 and AF12, respectively), were tested against secondary forest (SF). Soil samples of these areas were physically fractionated in order to determine total organic matter (TOC) as well as the labile-(LOC) and non-labile (NOC) fractions of the soil organic matter, as well as carbon management index (CMI). Total organic C ranged from 14.17 to 27.20 g kg -1 of soil, showing no differences in the surface layer among the land uses as compared to the secondary forest. No differences were found in the surface layer for LOC as well, except for the AF12 where LOC was higher. This condition accounts for higher microbial activity and nutrient cycling in the soil. This system also showed higher CMI values, pointing to a better response of soil quality under long-term agroforestry system. This system improved soil organic matter, regardless of the depth. On the other hand, conventional cassava and planted pasture systems reduced carbon in soil. In conclusion, the agroforestry system is the best choice of farmers, when they seek for better soil quality.

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Section: Introductionmentioning

confidence: 99%

Carbon Management Index and Carbon Stock of a Cohesive Oxisol Under Different in the Region Northeast of Brazil

Paes¹,

Dias²,

Fernandes³

et al. 2018

JAS

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“…It is recognized that the use of filter cake and vinasse, which are low cost materials, can improve soil fertility. Some authors even suggest that their use is beneficial to soil physical attributes, such as stability and average weighted diameter of aggregates [32]. It is possible to estimate the potential contribution of byproducts produced by the sugar-alcohol agroindustry to the annual recycling of nitrogen, phosphorus, and potassium in cultivated land with sugar cane in Brazil (Table 1).…”

Section: Introductionmentioning

confidence: 99%

Filter Cake and Vinasse as Fertilizers Contributing to Conservation Agriculture

Prado

Caione

Campos

2013

Applied and Environmental Soil Science

188

113

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Utilising organic residues in agriculture contributes to the conservation of natural resources by recycling carbon and mineral elements. Organic residues produced by the sugar and alcohol agroindustries have great potential for use in conservation agriculture. The production of sugar and alcohol generates large quantities of byproducts, such as filter cake and vinasse, which can be used as soil improvers and substitutes for inorganic phosphorus and potassium fertilizers. However, the use of these residues in agriculture requires specific recommendations for each pedoclimatic condition to prevent environmental damage.

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“…Alterações nos limites de consistência do solo em razão das modificações nos teores de carbono orgânico também foram observadas por outros autores (Oliveira et al, 2010a;Vasconcelos et al, 2010), ao constatarem que o aumento da matéria orgânica tende a aumentar a área superficial específica do solo, o que proporciona maior retenção de água, levando-o a ter maiores valores para os limites de plasticidade do solo. Assim, os solos cultivados podem ter sua faixa de friabilidade reduzida devido à baixa na concentração de matéria orgânica, contribuindo para o aumento da compactação.…”

Section: Introductionunclassified

Variabilidade espacial de atributos físicos e mecânicos de um Argissolo sob cultivo de cana-de-açúcar

Tavares¹,

Rolim

Pedrosa

et al. 2012

Rev. bras. eng. agríc. ambient.

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Propôs-se, neste trabalho, estudar a relação espacial de atributos físicos e mecânicos de um Argissolo Coeso cultivado com cana-de-açúcar. Estabeleceu-se um grid com 49 pontos georreferenciados para a retirada de amostras, em disposição 7 x 7, resultando uma malha de 120 x 120 m. As trincheiras foram abertas em duas camadas (0-20 e 20-40 cm) para a coleta das amostras deformadas e indeformadas. A distribuição normal foi verificada em todas as variáveis estudadas. Também se observou forte grau de dependência espacial para a maioria das variáveis. O limite de plasticidade apresentou efeito pepita puro. Os maiores alcances encontrados foram para o limite de liquidez (0-20 cm) e grau de compactação (0-20 cm) e os menores para umidade do solo (0-20 cm), IP e carbono orgânico (20-40 cm). Os mapas de krigagem apontaram correlação inversa entre densidade e porosidade e forte correlação entre argila e carbono orgânico, também entre a argila e os limites de consistência. Para a maioria das variáveis houve dependência espacial até 20 m indicando, para análises paramétricas, que as amostras devem ser coletadas em distâncias superiores a 20 m.

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Limites de consistência e propriedades químicas de um latossolo amarelo distrocoeso sob aplicação de diferentes resíduos da cana-de-açúcar

Cited by 13 publications

References 10 publications

Carbon Management Index and Carbon Stock of a Cohesive Oxisol Under Different in the Region Northeast of Brazil

Carbon Management Index and Carbon Stock of a Cohesive Oxisol Under Different in the Region Northeast of Brazil

Filter Cake and Vinasse as Fertilizers Contributing to Conservation Agriculture

Variabilidade espacial de atributos físicos e mecânicos de um Argissolo sob cultivo de cana-de-açúcar

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