Improving soil structure by promoting fungal abundance with organic soil amendments

Lucas, Shawn; D’Angelo, Elisa M.; Williams, Mark A.

doi:10.1016/j.apsoil.2013.10.002

Cited by 79 publications

(61 citation statements)

References 58 publications

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“…Other researchers suggest after waterlogging soil conditions, apply organic matter. Organic matter application influences soil physical properties such as soil structure, bulk density (Ruehlmann and Korschens, 2009) and soil porosity (Lucas et al, 2014) and in chemical properties as a nitrogen and phosphorus transformation in the soil (Singh et al, 1988). If some crops as wheat is treated with extra nitrogen it can make a splendid recovery against the early waterlogging stress (Dong et al, 1983;Swarup and Sharma, 1993).…”

Section: Resultsmentioning

confidence: 99%

DISTURBANCES CAUSED BY FLOODS IN THREE PHYSICAL PROPERTIES OF A VERTISOL SOIL IN THE EAST REGION OF CUBA, CULTIVATED WITH SUGARCANE (Saccharum spp.)

Rodríguez

Enríquez

Escalona

et al. 2016

HOLOS

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In Cuba the 40,3 % of cultivated lands is located in poorly drained soils, with tendency to increase, compounded by the effects of current climate change, which in this region of Cuba are becoming with more frequency in extreme climatic events such as droughts and floods. The research was developed with the objective of determining the influence of flooding in a Vertisol soil in three phisycal properties in the Cauto River Valley, of the Granma province, Cuba. It was considered the presence or absence of flooding as the principal factor on large plots, each one divided into 30 plots of 48 m 2 , to facilitate take the replicate samples. Two samplings, one at the beginning of the experiment and the other five months later, when the soil flooded concluded. The average of the bulk density, total porosity and aeration porosity values with their standard errors were plotted by bars, while statistically discriminated with the use of the Student t test. It is concluded that prolongated water excess in the soil increased bulk density and makes it significantly decreases the total aeration and porosity, which affects physical fertility of these soils and a decrease of the sugarcane yield, the principal crop in Cuba yet. KEYWORDS:Flooding, soil, physical properties. ALTERACIONES PROVOCADAS EN TRES PROPIEDADES FÍSICAS DE UN SUELO VERTISOL POR EFECTO DE LAS INUNDACIONES EN LA REGIÓN ORIENTAL DE CUBA, CULTIVADO CON CAÑA DE AZÚCAR (Saccharum spp.) RESUMENSe parte del hecho de que en Cuba el 40,3% del área agrícola cultivada se ubica en suelos de mal drenaje, con tendencia al incremento, agravado por los efectos del cambio climático actual, donde en esta región de Cuba son cada vez más frecuentes los eventos climatológicos extremos como sequías e inundaciones. El trabajo se desarrolló con el objetivo de determinar la influencia que ejerce el sobrehumedecimiento del suelo en tres propiedades físicas de un suelo Vertisol del Valle del Río Cauto en la provincia de Granma, Cuba, en el cual se cultiva caña de azúcar. Se consideró el factor presencia-ausencia de sobrehumedecimiento en parcelas grandes, subdividido en 30 parcelas de 48 m 2 , para facilitar la toma de muestras replicadas. Se realizaron dos muestreos, uno al inicio del experimento y el otro a los cinco meses, una vez concluido el sobrehumedecimiento. Los valores promedio de la densidad aparente, porosidad total y porosidad de aireación con sus errores estándar se representaron gráficamente por medio de barras, mientras que se discriminaron estadísticamente con el empleo de la prueba t de student. Se llegó a la conclusión de que el exceso de agua en el suelo incrementa la densidad aparente y hace descender significativamente la porosidad total y de aireación, lo que afecta la fertilidad física de estos suelos, lo que provoca un descenso en los rendimientos agroindustriales de la caña de azúcar, principal cultivo económico en Cuba. Palabras claves: Sobrehumedecimiento, suelo, propiedades físicas.

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Section: Resultsmentioning

confidence: 99%

DISTURBANCES CAUSED BY FLOODS IN THREE PHYSICAL PROPERTIES OF A VERTISOL SOIL IN THE EAST REGION OF CUBA, CULTIVATED WITH SUGARCANE (Saccharum spp.)

Rodríguez

Enríquez

Escalona

et al. 2016

HOLOS

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“…The role of microorganisms in the aggregate formation and stabilization of soil is well documented (Lucas et al 2013;Helliwell et al 2014). Activities of bacteria and fungi applied as inoculants in the enhancement of soil structure are affected by the aggregate scale (micro-or macroaggregate), soil types and soil mineralogy (Six et al 2004).…”

Section: Potentials Of Microbial Inoculants In Soil Structure Enhancementioning

confidence: 99%

“…It refers to the three dimensional arrangement of organic or mineral complexes (aggregates) and pore spaces, which is usually quantified by size distribution of aggregate or the stability of aggregates. Aggregate formation and stabilization are mediated by several factors which include soil microorganisms (Lucas et al 2013). …”

Section: Potentials Of Microbial Inoculants In Soil Structure Enhancementioning

confidence: 99%

Microbial Inoculants for Soil Quality and Plant Health

Alori

Dare²,

Babalola

2017

Sustainable Agriculture Reviews

118

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“…Therefore, the seasonal effects on fungal abundance were higher than those on bacterial abundance in GH. Higher fungal abundance can improve soil structure (Lucas et al 2014). Shifts of i/a and s/m ratio have been considered as indicators of chemical and physical disturbance or nutrient stress (McKinley et al 2005).…”

Section: Microbial Community Structurementioning

confidence: 99%

“…Using PLFA analysis, Zhao et al (2014) showed that higher rates of nitrogen fertilization increased soil fungal abundance but fertilization rate had no effect on bacterial abundance in a wheat-maize cropping system. Manure inputs have also been shown to promote fungal proliferation by increasing C liability in three textured soils (Lucas et al 2014). However, little is known about how different land use types influence soil microbial communities in agricultural fields.…”

Section: Introductionmentioning

confidence: 99%

Soil organic carbon and microbial community structure exhibit different responses to three land use types in the North China Plain

Guo

Chen

Wang

et al. 2015

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

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Soil organic carbon plays an important role in soil fertility and carbon sequestration. In the North China Plain, soil nutrients and organic carbon are still lacking in salt-affected soil after a successfully reclamation in the 1980s. Our objectives were to investigate the effects of land use types under different soil management practices on soil fertility, organic carbon pools, and the microbial community at this site. Three land use types were investigated: original land without farming, farmland with residue return, and a vegetable greenhouse with farmyard manure amendment. The carbon stocks were calculated according to the equivalent soil mass method, and microbial community structure was determined by phospholipid fatty acid analysis. Over 30 years, the current concentrations of alkali-hydrolysis nitrogen, available potassium (AK), and available phosphorus increased in the three land use types, except for the AK concentration in farmland, which decreased due to the lack of potassium fertilizer input. The nutrients in the greenhouse were significantly higher than those in the original land and farmland. The carbon stocks in the original land, farmland, and greenhouse were increased by 103%, 179%, and 660%, respectively. Both land use types and seasons influenced particulate organic carbon, chemical-labile organic carbon, and microbial biomass carbon. The microbial community structures were distinctly different between the three land use types. Overall, the soil available nutrients and carbon stocks increased compared to their 1980 levels in the three land use types, and labile carbon pools and microbial community structure exhibited different responses in the three land use types. Compared to spontaneous development, mineral fertilization and organic amendment are more effective for recovering soil fertility in reclaimed soils.

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Improving soil structure by promoting fungal abundance with organic soil amendments

Cited by 79 publications

References 58 publications

DISTURBANCES CAUSED BY FLOODS IN THREE PHYSICAL PROPERTIES OF A VERTISOL SOIL IN THE EAST REGION OF CUBA, CULTIVATED WITH SUGARCANE (Saccharum spp.)

DISTURBANCES CAUSED BY FLOODS IN THREE PHYSICAL PROPERTIES OF A VERTISOL SOIL IN THE EAST REGION OF CUBA, CULTIVATED WITH SUGARCANE (Saccharum spp.)

Microbial Inoculants for Soil Quality and Plant Health

Soil organic carbon and microbial community structure exhibit different responses to three land use types in the North China Plain

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