Long-term effect of tillage systems on soil microbiological, chemical and physical parameters and the incidence of charcoal rot by Macrophomina phaseolina (Tassi) Goid in soybean

Brandán, Carolina Pérez; Arzeno, José Luis; Huidobro, Jorgelina; Grümberg, Betiana; Conforto, Erica Cinthia; Hilton, Sally; Bending, Gary D.; Meriles, José Manuel; Vargas-Gil, Silvina

doi:10.1016/j.cropro.2012.04.018

Cited by 49 publications

(28 citation statements)

References 30 publications

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“…It has also been reported that plant pathogens show complex genetic diversities for their different host ranges, pathogenicity and physiological characters, and S. marcescens has the ability to overcome these diversities, which implies that S. marcescens is an ideal bacterium for ecological remediation. Other studies have shown that the soil microbial community is seriously affected by continuous cropping, and the trend toward an increase in pathogens and simplification of the beneficial microorganism community could be an important factor contributing to the decline in peanut growth and yield . Our results of pathogen quantification were in agreement with this.…”

Section: Discussionsupporting

confidence: 91%

Application of Serratia marcescensRZ‐21 significantly enhances peanut yield and remediates continuously cropped peanut soil

Yang

Wang

et al. 2015

J Sci Food Agric

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Section: Discussionsupporting

confidence: 91%

Application of Serratia marcescensRZ‐21 significantly enhances peanut yield and remediates continuously cropped peanut soil

Yang

Wang

et al. 2015

J Sci Food Agric

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“…2a), probably due to the greater sensitivity of bacteria to limited sources of energy and nutrients, as most bacteria grow as single cells and do not develop a hyphal network structure, which is typical for fungi, allowing the latter group of organisms to acquire energy, nutrients and water from other compartments of the soil. These findings confirm data from Perez-Brandan et al (2012) who also found greater effects of long-term MT on bacterial community composition than on fungal diversity. In contrast to bacteria, the composition of fungal communities changed the most in the upper 0-10 cm of soil (Fig.…”

Section: Dynamics Of Microbial Communitiessupporting

confidence: 93%

“…Our results, obtained from a 12 year field experiment, in general, confirmed the findings of other studies, which reported that MT results in an accumulation of SOC in the very topsoil, leading to improved soil structure, aggregate stability, water infiltration and WHC (Yaduvanshi and Sharma 2008;Tabaglio et al 2009;Perez-Brandan et al 2012). In our study, the effects of MT were not as pronounced.…”

Section: Dynamics Of Soil Organic Mattersupporting

confidence: 93%

Consequences of minimum soil tillage on abiotic soil properties and composition of microbial communities in a shallow Cambisol originated from fluvioglacial deposits

et al. 2015

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A long-term field experiment was run for 12 years to evaluate the impact of minimum tillage (MT) compared to conventional mouldboard ploughing (CT) on soil chemical, physical and microbial properties in a shallow Cambisol formed over fluvioglacial deposits of Drava river in Slovenia. Significant differences between MT and CT were found in vertical distribution of soil organic C (SOC) and nutrients (total N and plant available potassium); under MT, concentrations decreased from the soil surface to the lower layers, as opposed to CT which maintained rather uniform distribution down to the ploughing depth. MT in comparison with CT also increased the proportion of water-stable 2-4-mm-sized aggregates (80.9 and 61.3 %, respectively), water holding capacity (24.8 and 22.2 %, respectively) and plant available water (13.4 and 10.3 %, respectively) in the upper 0-10-cm soil layer. Bulk density, porosity, the proportion of water-stable 1-2-mm-sized aggregates and infiltration rate showed no significant differences between the tillage treatments. SOC content in the upper 0-10-cm soil layer was not significantly different between MT and CT (1.60±0.07 and 1.45±0.05 %, respectively), as well as the overall stock in the investigated soil profile (0-60 cm) remained unaffected (57.4± 0.8 and 59.1± 2.2 t ha −1 , respectively). Microbial biomass, estimated by the total soil DNA, was higher in MT than CT in the 0-10-cm layer. Furthermore, a positive linear dependence of microbial biomass on SOC content was observed. Fingerprinting of bacterial, fungal and archaeal communities indicated that microbial community composition changed by long-term MT, whereas changes in microbial diversity were not detected for any domain. The most pronounced shifts in the composition were found for bacterial communities in the 10-20-cm layer, while the composition of fungal communities slightly changed in the upper 0-10 cm of MT soil. The composition of archaeal communities was not affected by the tillage or by the soil depth. Our results indicate that MT generates modest changes in soil structure and soil water retention properties and could support measures against erosion, drought and nutrient leaching. Considering increased microbial biomass in the topsoil of MT and shifts in microbial diversity, the impacts of MT on soil microbiome are also evident and need to be further investigated to identify the affected functional traits.

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“…The influence of different tillage systems on the rate of decay of aggregate fractions needs to be examined in the context of tillage systems' effects on a host of soil physical, biological, and chemical properties, where soil organic matter affects these properties directly or indirectly. The interaction effect of tillage and crop rotation on soil biological and physical properties, including soil thermal and water holding capacity, is well documented (Perez-Brandán et al 2012;Guzman and Al-Kaisi 2011). Crop residue is an important factor in improving soil quality, including soil aggregate stability and water content, within conservations systems as documented in many studies (Dam et al 2004).…”

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Soil microaggregate and macroaggregate decay over time and soil carbon change as influenced by different tillage systems

Al‐Kaisi¹,

Douelle²,

Kwaw‐Mensah³

2014

Journal of Soil and Water Conservation

121

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Soil tillage can affect the formation and stability of soil aggregates. The disruption of soil structure weakens soil aggregates to be susceptible to the external forces of water, wind, and traffic instantaneously, and over time. The choice of tillage system or land management changes the soil physical condition and soil organic matter content, which is an essential factor in building soil aggregates. This study was conducted to investigate the effects of different tillage systems on the rate of decay of different sizes of soil aggregate fractions and other associated properties over time as subjected to a continuous wetting process. This research was conducted on a long-term tillage study, established in 2002 at the Iowa State University Agronomy Research Farm near Ames, Iowa. The soil association in this study is Clarion-Nicollet-Webster (Clarion [fine-loamy, mixed, mesic, Typic Hapluduolls], Nicollet [fine-loamy, mixed, mesic, Aquic Hapluduolls], and Webster [fine-loam, mixed, mesic, Typic Endoaquolls]). The experimental design was a randomized complete block design with four replications. Main plot treatments were five tillage systems: moldboard-plow, chisel-plow, deep-rip, strip-till, and no-till. The cropping system was corn (Zea mays L.)-soybean (Glycine max L.) rotation. Wet aggregate stability was measured using the Wet Sieving Apparatus (Eijkelkamp, Agrisearch Equipment. Art no. 08.13). Soil organic carbon (SOC) and soil total nitrogen (N) were analyzed by dry combustion using CHN Analyzer (TruSpec CHN Version 2.5x). Results show no-till with the highest carbon (C) content and the highest macro-and microaggregate stability over time. The findings also show a strong relationship between the increase in SOC content and the stability of macro-and microaggregate under continuous wetting process. Furthermore, the findings suggest that aggregate stability and moisture content are highly correlated with SOC content, and the rate of decay of both aggregate sizes (macro and micro) is highly influenced by the intensity of tillage. The implication of this research is the importance of no-till not only in increasing the stability of micro-and macroaggregates and SOC storage, but also in its effect on increasing the stability of all aggregate fractions in continuous wet conditions for extended periods of time.

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Long-term effect of tillage systems on soil microbiological, chemical and physical parameters and the incidence of charcoal rot by Macrophomina phaseolina (Tassi) Goid in soybean

Cited by 49 publications

References 30 publications

Application of Serratia marcescensRZ‐21 significantly enhances peanut yield and remediates continuously cropped peanut soil

Application of Serratia marcescensRZ‐21 significantly enhances peanut yield and remediates continuously cropped peanut soil

Consequences of minimum soil tillage on abiotic soil properties and composition of microbial communities in a shallow Cambisol originated from fluvioglacial deposits

Soil microaggregate and macroaggregate decay over time and soil carbon change as influenced by different tillage systems

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