Enzymatic Activity and Carbon Mineralization in Mexican Tepetates Cultivated Under Different Management Practices

Microbiological activity and carbon mineralization in pampean soils with different agricultural use intensity

10.7287/peerj.preprints.1608 ◽

2015 ◽

Author(s):

Ricardo A Castro-Huerta ◽

Fernando R Momo ◽

Liliana B Falco ◽

César A Di Ciocco ◽

Carlos E Coviella

Keyword(s):

Organic Matter ◽

Microbial Biomass ◽

Soil Respiration ◽

Enzymatic Activity ◽

Microbial Biomass Carbon ◽

Carbon Mineralization ◽

Terrestrial Ecosystems ◽

Mineralization Rate ◽

Microbial Quotient ◽

Agricultural Use

The processes involved in the flows of matter and energy of terrestrial ecosystems depends heavily on soil biological activity, the current conventional agricultural managements could alter the biological mechanisms involved in decomposition and nutrient cycling in agroecosystems. The aim of this study was to compare the activity levels and soil microbial biomass between different agricultural pampean soil uses and its relationship to carbon mineralization. 25 years of agricultural use were compared with 25 years of ecological reserve naturalized where each agroecosystem soil were collected at 61 - 125 - 183 - 236 - 302 - 368 - 431 - 488 days for measuring their moisture, organic matter, enzymatic activity, microbial biomass carbon, soil respiration, metabolic quotient, microbial quotient and carbon mineralization rate. The distance between agroecosystems is less than 800 m, thus assuming the same soil and climatic conditions. The data were evaluated by Friedman test finding significant differences in moisture, organic matter, enzymatic activity, soil respiration y microbial quotient (p< 0.01). Difference was also found in the microbial mineralization rate of carbon (p< 0.1).

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Microbiological activity and carbon mineralization in pampean soils with different agricultural use intensity

10.7287/peerj.preprints.1608v1 ◽

2015 ◽

Author(s):

Ricardo A Castro-Huerta ◽

Fernando R Momo ◽

Liliana B Falco ◽

César A Di Ciocco ◽

Carlos E Coviella

Keyword(s):

Organic Matter ◽

Microbial Biomass ◽

Soil Respiration ◽

Enzymatic Activity ◽

Microbial Biomass Carbon ◽

Carbon Mineralization ◽

Terrestrial Ecosystems ◽

Mineralization Rate ◽

Microbial Quotient ◽

Agricultural Use

The processes involved in the flows of matter and energy of terrestrial ecosystems depends heavily on soil biological activity, the current conventional agricultural managements could alter the biological mechanisms involved in decomposition and nutrient cycling in agroecosystems. The aim of this study was to compare the activity levels and soil microbial biomass between different agricultural pampean soil uses and its relationship to carbon mineralization. 25 years of agricultural use were compared with 25 years of ecological reserve naturalized where each agroecosystem soil were collected at 61 - 125 - 183 - 236 - 302 - 368 - 431 - 488 days for measuring their moisture, organic matter, enzymatic activity, microbial biomass carbon, soil respiration, metabolic quotient, microbial quotient and carbon mineralization rate. The distance between agroecosystems is less than 800 m, thus assuming the same soil and climatic conditions. The data were evaluated by Friedman test finding significant differences in moisture, organic matter, enzymatic activity, soil respiration y microbial quotient (p< 0.01). Difference was also found in the microbial mineralization rate of carbon (p< 0.1).

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Agricultural Management Practices Influence the Soil Enzyme Activity and Bacterial Community Structure in Tea Plantations

10.21203/rs.3.rs-165352/v1 ◽

2021 ◽

Author(s):

Yu-Pei Chen ◽

Chai-Fang Tsai ◽

PD Rekha ◽

Sudeep Ghate ◽

Hsi-Yuan Huang ◽

...

Keyword(s):

Bacterial Community ◽

Enzymatic Activity ◽

Soil Properties ◽

Soil Quality ◽

Soil Ph ◽

Management Practices ◽

Agricultural Management ◽

Bacterial Composition ◽

Tea Plantation ◽

Tea Plantations

Abstract Background The soil quality and health of the tea plantations are dependent on the agriculture management practices, and long-term chemical fertilizer use is implicated in soil decline. Hence, several sustainable practices are used to improve and maintain the soil quality. Here, in this study, changes in soil properties, enzymatic activity, and dysbiosis in bacterial community composition were compared using three agricultural management practices, namely conventional (CA), sustainable (SA) and transformational agriculture (TA) in the tea plantation during 2016 and 2017 period. Soil samples at two-months intervals were collected and analyzed. Results The results of the enzyme activities revealed that acid phosphatase, arylsulfatase, β-glucosidase, and urease activities differed considerably among the soils representing the three management practices. Combining the redundancy and multiple regression analysis, the change in the arylsulfatase activity was explained by soil pH as a significant predictor in the SA soils. The soil bacterial community was predominated by the phyla Proteobacteria, Acidobacteria, Actinobacteria, Chloroflexi, and Bacteroidetes in the soil throughout the sampling period. Higher Alpha diversity scores indicated increased bacterial abundance and diversity in the SA soils. A significant relationship between bacterial richness indices (SOBS, Chao and ACE) and soil pH, K and P was observed in the SA soils. The diversity indices namely Shannon and Simpson also showed variations, suggesting the shift in the diversity of less abundant and more common species. Furthermore, the agricultural management practices, soil pH fluctuation and the extractable elements had a greater influence on bacterial structure than that of temporal change. Conclusions Based on the cross-over analysis of bacterial composition, enzymatic activity and the soil properties, the relationship between bacterial composition and biologically-driven ecological processes can identified as indicators of sustainability for the tea plantation.

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Effects of Management Practices and Land Use on Biological and Enzymatic Attributes of an Agricultural Area

Journal of Agricultural Science ◽

10.5539/jas.v10n6p110 ◽

2018 ◽

Vol 10 (6) ◽

pp. 110

Author(s):

Luciana S. Barros ◽

Valdinar F. Melo ◽

Zachary N. Senwo ◽

Ariane Evald ◽

Raphael Henrique S. Siqueira ◽

...

Keyword(s):

Land Use ◽

Enzymatic Activity ◽

Soil Quality ◽

Management Practices ◽

Soil Cover ◽

Microbial Biomass Carbon ◽

Land Conversion ◽

Study Objective ◽

Soil Disturbances ◽

Land Use And Management

A series of anthropogenic approaches, including burning practices and soil disturbances as soil cover removal, plowing and harrowing were experimentally undertaken to mimic land conversion for agricultural production in northern Amazonia. These manipulations led to changes in soil biological and biochemical properties. To reduce knowledge gaps concerning land conversion in the Amazon, the study objective was to evaluate the influence of land use and management practices on the biological attributes and enzymatic activity of the soil in Tepequem, a settlement in north of the Amazon, Brazil. Tepequem was chosen for being highly representative in terms of land use and management patterns in the region. Microbial biomass carbon (MBC), soil basal respiration (SBR), metabolic quotient (qCO2) and enzymatic activity were analyzed. Land use changes resulted in alterations to soil quality. The spontaneous plants found on degraded pasture ensured system diversification, protection and organic contribution, facilitating resumption of ecological balancing of the soil. Good soil quality in managed pasture was attributed to the maintenance of soil cover, provided by grasses, and the absence of soil rotation. Burning, soil disturbances and lack of cover negatively influenced the biological and enzymatic activity in sites that were preparation, deforested and burnt. Chemical attributes are significant factors influencing soil quality and health at subsistance plantation. MBC, qMIC and qCO2, acid phosphatase, Beta-glucosidase and urease were the most sensitive parameters of differentiation of sites in preparation from those of native vegetation and pastures.

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Winter effect on soil microorganisms under different tillage and phosphorus management practices in eastern Canada

Canadian Journal of Microbiology ◽

10.1139/cjm-2014-0821 ◽

2015 ◽

Vol 61 (5) ◽

pp. 315-326 ◽

Cited By ~ 4

Author(s):

Yichao Shi ◽

Roger Lalande ◽

Chantal Hamel ◽

Noura Ziadi

Keyword(s):

Microbial Community ◽

Enzymatic Activity ◽

Soil Microbial Community ◽

Mycorrhizal Fungi ◽

Soil Microorganisms ◽

Management Practices ◽

Phospholipid Fatty Acid ◽

P Fertilization ◽

Soil Microbial ◽

Winter Conditions

Determining how soil microorganisms respond to crop management systems during winter could further our understanding of soil phosphorus (P) transformations. This study assessed the effects of tillage (moldboard plowing or no-till) and P fertilization (0, 17.5, or 35 kg P·ha−1) on soil microbial biomass, enzymatic activity, and microbial community structure in winter, in a long-term (18 years) corn (Zea mays L.) and soybean (Glycine max L.) rotation established in 1992 in the province of Quebec, Canada. Soil samples were collected at 2 depths (0–10 and 10–20 cm) in February 2010 and 2011 after the soybean and the corn growing seasons, respectively. Winter conditions increased the amounts of soil microbial biomasses but reduced the overall enzymatic activity of the soil, as compared with fall levels after corn. P fertilization had a quadratic effect on the amounts of total, bacterial, arbuscular mycorrhizal fungi phospholipid fatty acid markers after corn but not after soybean. The soil microbial community following the soybean and the corn crops in winter had a different structure. These findings suggest that winter conditions and crop-year could be important factors affecting the characteristics of the soil microbial community under different tillage and mineral P fertilization.

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Agricultural management practices influence the soil enzyme activity and bacterial community structure in tea plantations

Botanical Studies ◽

10.1186/s40529-021-00314-9 ◽

2021 ◽

Vol 62 (1) ◽

Author(s):

Yu-Pei Chen ◽

Chia-Fang Tsai ◽

P. D. Rekha ◽

Sudeep D. Ghate ◽

Hsi-Yuan Huang ◽

...

Keyword(s):

Bacterial Community ◽

Enzymatic Activity ◽

Soil Properties ◽

Soil Quality ◽

Soil Ph ◽

Management Practices ◽

Agricultural Management ◽

Bacterial Composition ◽

Tea Plantation ◽

Tea Plantations

Abstract Background The soil quality and health of the tea plantations are dependent on agriculture management practices, and long-term chemical fertilizer use is implicated in soil decline. Hence, several sustainable practices are used to improve and maintain the soil quality. Here, in this study, changes in soil properties, enzymatic activity, and dysbiosis in bacterial community composition were compared using three agricultural management practices, namely conventional (CA), sustainable (SA), and transformational agriculture (TA) in the tea plantation during 2016 and 2017 period. Soil samples at two-months intervals were collected and analyzed. Results The results of the enzyme activities revealed that acid phosphatase, arylsulfatase, β-glucosidase, and urease activities differed considerably among the soils representing the three management practices. Combining the redundancy and multiple regression analysis, the change in the arylsulfatase activity was explained by soil pH as a significant predictor in the SA soils. The soil bacterial community was predominated by the phyla Proteobacteria, Acidobacteria, Actinobacteria, Chloroflexi, and Bacteroidetes in the soil throughout the sampling period. Higher Alpha diversity scores indicated increased bacterial abundance and diversity in the SA soils. A significant relationship between bacterial richness indices (SOBS, Chao and ACE) and soil pH, K and, P was observed in the SA soils. The diversity indices namely Shannon and Simpson also showed variations, suggesting the shift in the diversity of less abundant and more common species. Furthermore, the agricultural management practices, soil pH fluctuation, and the extractable elements had a greater influence on bacterial structure than that of temporal change. Conclusions Based on the cross-over analysis of the bacterial composition, enzymatic activity, and soil properties, the relationship between bacterial composition and biologically-driven ecological processes can be identified as indicators of sustainability for the tea plantation.

Download Full-text