Distribution of organic carbon in humic and granulodensimetric fractions of soil as influenced by tillage and crop rotation

Liaudanskienė, Inga; Šlepetienė, Alvyra; Velykis, Aleksandras; Satkus, A.

doi:10.3176/eco.2013.1.05

Cited by 12 publications

(12 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Soil humus substances (such as soil fulvic acid, humic acid, and humin) are an important part of soil quality and fertility (Liaudanskiene, Slepetiene, Velykis, & Satkus, 2013;Pereira, Loss, Beutler, & Torres, 2012;Wu et al, 2019). In recent years, some researchers have found that soil aggregation and soil humus substances were influenced by crop rotations, soil tillage, and crop residues practices (Jiang, Wright, Wang, & Li, 2011;Saikia et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Impact of tillage practices on soil aggregation and humic substances under double‐cropping paddy field

Tang

Xiao

et al. 2020

Agronomy Journal

View full text Add to dashboard Cite

The effects of different tillage practices on soil organic carbon (SOC), soil aggregation, soil fulvic acid (C‐FAF), soil humic acid (C‐HAF), and soil humin (C‐HUM) contents at 0–5, 5–10, and 10–20 cm layers under double‐cropping rice (Oryza sativa L.) fields in southern China were explored. The experiment included four tillage treatments: conventional tillage and crop residues incorporation (CT), rotary tillage and crop residues incorporation (RT), no‐tillage and crop residues incorporation (NT), and rotary tillage without crop residues as a control (RTO). The results showed that SOC content under RT and CT treatments were significantly higher than that of RTO treatment. The percentage of soil aggregates of <0.001 mm, 0.005–0.001 mm, and 0.01–0.005 mm at 0–5, 5–10, and 10–20 cm layers under CT treatment were significantly higher than that of RTO treatment. The C‐HUM, C‐FAF, and C‐HAF contents were increased by combined application of tillage with crop residues practices. The results showed that C‐HUM, C‐FAF, and C‐HAF contents under CT and RT treatments were significantly higher than those under the RTO treatment at 0–5, 5–10, and 10–20 cm layers. As a result, it is an appropriate soil practice for increasing SOC content, soil aggregation, and humic substances under double‐cropping rice fields in southern China under conventional tillage and rotary tillage.

show abstract

Section: Introductionmentioning

confidence: 99%

Impact of tillage practices on soil aggregation and humic substances under double‐cropping paddy field

Tang

Xiao

et al. 2020

Agronomy Journal

View full text Add to dashboard Cite

show abstract

“…Higher levels of these fractions are generally observed in soil managements that do not involve soil disturbance, such as no-tillage (Liaudanskiene et al, 2013;Sá et al, 2015), as well as in soil management systems characterized by massive deposition of various plant residues (Arlauskiene et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Soil organic matter as affected by management systems, phosphate fertilization, and cover crops

Souza

Figueiredo

Sousa

2016

Pesq. agropec. bras.

View full text Add to dashboard Cite

-The objective of this work was to evaluate the effects of soil management systems, cover crops, and phosphate fertilization on soil humic fractions in a long-term experiment. The treatments consisted of conventional tillage and no-tillage with pearl millet (Pennisetum glaucum) or velvet bean (Mucuna aterrima) as cover crops, at two doses of phosphorous: 0 and 100 kg ha -1 P 2 O 5 per year. Soil samples were taken 11 years after the establishment of the experiment and analyzed for soil total organic carbon and carbon content of humic fractions at 0.00-0.05, 0.05-0.10, and 0.10-0.20-m depths. The humic fractions are sensitive to soil management, except free fulvic acid, which was the only one that did not reduce its carbon contents on the surface layer (0.00-0.05 m) with conventional tillage. The main changes occurred on the soil surface layer, in which the no-tillage system with pearl millet as a cover crop provided the highest carbon levels in humic fractions. Long-term phosphate fertilization under no-tillage, with pearl millet as a cover crop, promotes the accumulation of organic carbon in soil humic fractions.Index terms: humic fractions, no-tillage, organic matter fractions, phosphate fertilization, soil fertility, soil quality. Matéria orgânica do solo influenciada por sistemas de manejo, adubação fosfatada e plantas de coberturaResumo -O objetivo deste trabalho foi avaliar os efeitos de sistemas de manejo do solo, de plantas de cobertura e da fertilização fosfatada nas frações húmicas do solo, em experimento de longa duração. Os tratamentos consistiram de sistemas de preparo convencional e de plantio direto com milheto (Pennisetum glaucum) ou com mucuna-preta (Mucuna aterrima) como planta de cobertura, sob duas doses de fósforo: 0 e 100 kg ha -1 de P 2 O 5 por ano. As amostras de solo foram coletadas após 11 anos da implantação do experimento e analisadas quanto aos teores de carbono orgânico total e de carbono das frações humificadas no solo, nas camadas de 0,00-0,05, 0,05-0,10 e 0,10-0,20 m de profundidade. As frações humificadas são sensíveis ao manejo do solo, exceto o ácido fúlvico livre, que foi a única que não diminuiu seus conteúdos de carbono na camada superficial do solo (0,00-0,05 cm) com o plantio convencional. As principais alterações ocorreram na camada superficial, em que o plantio direto com milheto como planta de cobertura promoveu os maiores teores de carbono nas frações húmicas. A fertilização fosfatada por longo tempo sob plantio direto, com milheto como planta de cobertura, promove o acúmulo de carbono orgânico nas frações húmicas do solo.Termos para indexação: frações húmicas, plantio direto, frações da matéria orgânica, fertilização fosfatada, fertilidade do solo, qualidade do solo.

show abstract

“…This lack of vegetation at the soil surface and, therefore, the lack of C input in the soil for 27 years resulted in a lower TOC (only 28 g kg -1 ) compared to the other plots. The influence of soil tillage on TOC seems to depend on the depth to which the residues are incorporated into the soil (Liaudanskiene et al, 2013). According to the same authors, minimum tillage (MT) leads to a higher organic carbon (OC) content in the surface layer (0.00-0.15 m), but in the layer below (0.15-0.25 m), CT does.…”

Section: Resultsmentioning

confidence: 99%

“…The size fractionation of SOM can help assess the changes resulting from land use, because of different sensitivity of the various fractions to the effects of soil management (Bayer, 2003). The implementation of minimum tillage practices significantly increased the contents of humic acid (HA) and fulvic acid (FA) strongly bound to clay and of humic acid bound to calcium in the plowed layer (Liaudanskiene et al, 2013).…”

Section: An Analysis Bymentioning

confidence: 99%

Long-Term Effect of Soil Use and Management on Organic Carbon and Aggregate Stability

Wolschick

Barbosa

Bertol

et al. 2018

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

The conversion of native grassland into farmland causes changes in the soil. Tillage has profound effects on soil organic matter. The intensification of soil tillage decreases soil quality by reducing aggregate stability. Soil aggregate stability and soil organic matter are key indicators for soil quality and environmental sustainability in agro-ecosystems. The aim of the present study is to evaluate the total organic carbon content and the physical and chemical fractions of the organic matter in a soil under different uses and types of management over 27 years. Four soil tillage treatments with two annual crops were evaluated (no-tillage, NT; rotating tillage, RT; minimum tillage, MT; and conventional tillage, CT), as well as bare soil (BS) (standard plot of the Universal Soil Loss Equation-USLE) and natural grassland (NG) as a reference area. The experiment was carried out in an Inceptisol (Cambissolos) in southern Brazil. We determined total organic carbon (TOC) and particulate organic carbon (POC), and organic carbon associated with soil minerals (OCam). The chemical fractionation of carbon was into fulvic and humic acids, and humin. In addition, soil aggregates were divided into five size classes. The type of soil tillage affected the soil organic carbon content, namely TOC, POC, and OCam, as well as the composition of the physical and chemical fractions and their distribution in the arable soil layer. There was a positive relationship between stable aggregates and organic carbon in the soil: the higher the proportion of aggregates in class 1, the higher the organic carbon content. The results support the hypothesis that the carbon stock depends on intensification of a conservation tillage system with a continuous input of C through biomass, which maintains and supplies a continuous flow of C to the carbon transformation processes in the soil.

show abstract

Distribution of organic carbon in humic and granulodensimetric fractions of soil as influenced by tillage and crop rotation

Cited by 12 publications

References 43 publications

Impact of tillage practices on soil aggregation and humic substances under double‐cropping paddy field

Impact of tillage practices on soil aggregation and humic substances under double‐cropping paddy field

Soil organic matter as affected by management systems, phosphate fertilization, and cover crops

Long-Term Effect of Soil Use and Management on Organic Carbon and Aggregate Stability

Contact Info

Product

Resources

About