The effect of moisture on soil microbial properties and nitrogen cyclers in Mediterranean sweet orange orchards under organic and inorganic fertilization

Morugán‐Coronado, Alicia; García‐Orenes, Fuensanta; McMillan, Mary; Pereg, Lily

doi:10.1016/j.scitotenv.2018.11.174

Cited by 62 publications

(30 citation statements)

References 70 publications

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“…In organic orange production systems, where organic fertilizers are used and the soil is covered, higher microbial activities have been reported [10]. The decrease in BSR in the herbicide treatment compared to the non-herbicide use in the seventh and ninth years after planting may be associated with changes in the microbial community, such as an altered fungal abundance [12,15]. Previous studies have shown little interference of herbicides with the microbial community, and larger BSR values have been found due to the degradation of glyphosate [15,16,48].…”

Section: Soil Microbial Activitymentioning

confidence: 99%

“…The active part is more labile compared to the non-living part of organic matter (95%) [42]. The microbiota can be used as a soil biological quality index, responding rapidly to system changes [12] due to their dynamic relationship with the quality and quantity of the mulch.…”

Section: Soil Microbial Activitymentioning

confidence: 99%

“…To evaluate the biological quality of the soil, the presence of functional genes of some microorganisms that promote plant growth can be measured. The nif H gene, which indicates the presence of nitrogen-fixing bacteria (diazotrophic bacteria) [12], and the phoD gene, which assists in the release of phosphorus [51], were more abundant in ecological mower and Urochloa ruziziensis treatments in the ninth year after planting. Nitrogen is an essential element for plant development and is dependent on the microbial community of the soil.…”

Section: Soil Microbial Activitymentioning

confidence: 99%

“…Nitrogen is an essential element for plant development and is dependent on the microbial community of the soil. Nitrogen mineralization and immobilization are associated with microbial biomass, functional genes, and the carbon and nitrogen cycling rates of microorganisms [12]. Systems that improve the proportion of these factors may be essential for the good development and yield of Tahiti acid lime.…”

Section: Soil Microbial Activitymentioning

confidence: 99%

“…The maintenance of plant residues in soil can cause minor disturbances in the anthropic environment, with less interference the soil microbial communities through a more balanced and sustainable environment [11]. Changes in natural or managed environments are noticeable in soil microbial variables, which respond quickly to different soil uses [12] with changes in their community structures.…”

Section: Introductionmentioning

confidence: 99%

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Implication of Urochloa spp. Intercropping and Conservation Agriculture on Soil Microbiological Quality and Yield of Tahiti Acid Lime in Long Term Orchard Experiment

Arantes¹,

Cotta

Conceição

et al. 2020

Agriculture

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Techniques such as intercropping and minimum tillage improve soil quality, including soil microbial activity, which stimulates the efficient use of soil resources by plants. However, the effects of such practices in soil under citrus orchards have not been well characterized. In this study, we aimed to determine the effects of mowing and intercrop species on soil microbiological characteristics beneath a Tahiti acid lime orchard. The orchard was planted using minimum tillage and intercropped with two species of Urochloa species (U. ruziziensis—ruzi grass; U. decumbens—signal grass), with two types of mowers for Urochloa biomass (ecological; conventional) and herbicide applications. The study was conducted over 10 years. The ecological mower made the largest deposition of the intercrop biomass, thus providing the lowest disturbance of soil microbial activity and increasing, on average over all 10 years, the basal soil respiration (45%), microbial biomass carbon (25%), abundance of 16S rRNA (1.5%) and ITS (3.5%) genes, and arbuscular mycorrhizal fungi (30%), and providing a ca. 20% higher fruit yield. U. ruziziensis in combination with ecological mowing stimulated the abundance of the genes nifH (1.5%) and phoD (3.0%). The herbicide showed little influence. We conclude that the use of U. ruziziensis as an intercrop in citrus orchards subjected to ecological mowing can be recommended for improving and sustaining soil quality and citrus fruit production.

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Section: Soil Microbial Activitymentioning

confidence: 99%

Section: Soil Microbial Activitymentioning

confidence: 99%

Section: Soil Microbial Activitymentioning

confidence: 99%

Section: Soil Microbial Activitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Implication of Urochloa spp. Intercropping and Conservation Agriculture on Soil Microbiological Quality and Yield of Tahiti Acid Lime in Long Term Orchard Experiment

Arantes¹,

Cotta

Conceição

et al. 2020

Agriculture

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Temperature, soil moisture, and microbial controls on CO₂ and CH₄ emissions from a permafrost peatland

Song

Hou

et al. 2021

Env Prog and Sustain Energy

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Peatlands are significant carbon dioxide (CO 2 ) sinks and methane (CH 4 ) sources. In this study, we investigated changes in CO 2 and CH 4 emissions from topsoil (0-20 cm) to subsoil (20-40 cm) in a permafrost peatland, and the related soil microbial abundance in response to increasing temperature and soil water content by using an incubation experiment. Our results indicated that CO 2 and CH 4 emissions from the permafrost peatland are highly sensitive to temperature and soil water content.CO 2 emissions from topsoil and subsoil at 15 C were 3.36 and 2.74 times larger, respectively, compared to those at 5 C under the field moisture condition, and were 1.70 times larger under the waterlogged treatment in both topsoil and subsoil. CH 4 emissions from 0-20 to 20-40 cm soils at 15 C were 34 and 83 times larger, respectively, than those at 5 C under the original state and 17 and 32 times larger under the waterlogged treatment. These results indicated that CH 4 emissions are more sensitive than CO 2 emissions, and waterlogged conditions could decrease temperature sensitivity of CO 2 and CH 4 emissions. Microbial analyses showed that the cumulative emissions amount of CO 2 positively correlated with bacterial, fungal, and methanotroph abundances. Positive relationships were observed between CH 4 emissions and abundances of bacteria, fungi, and archaea. These findings suggested that changes in temperature and water content alter CO 2 and CH 4 emissions from permafrost peatlands through controlling abundances of soil bacteria, fungi, archaea, and methanotrophs. These variables bear importance in accurately estimating C emissions from permafrost peatlands.

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Phytoremediation potential of rapeseed in phenanthrene‐contaminated soils under different irrigation regimes and pumice levels

Amiri

Shabani

Javidi

2022

Irrigation and Drainage

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To evaluate the effects of irrigation regimes and pumice levels on the physiological parameters of rapeseed (Brassica napus) and phenanthrene phytoremediation efficiency, a 15-week pot experiment was conducted in the open environment of the College of Agriculture at Fasa University. Three irrigation levels, 75%, 100% and 125% of the field capacity, I1, I2 and I3, respectively, and three pumice levels, 0%, 5% and 10% w/w soil, P0, P1 and P2, respectively, were considered. The results showed that the shoot fresh weight, shoot dry weight, shoot-root ratio, root fresh weight, root dry weight, root volume, root length, root surface area and root length density in the I3P2 treatment increased by 25%, 35%, 22%, 35%, 19%, 24%, 19%, 21% and 19%, respectively, compared to the corresponding control (I2P0). A significant increase in the number of soil microorganisms (32%) and removal of phenanthrene (74%) were achieved in I3P2 compared to I2P0. According to the Pearson correlation coefficient, all physiological parameters of rapeseed had a high negative correlation with the residual phenanthrene in the soil and consequently increased its dissipation. Therefore, the rapeseed plant can be used as a practical and effective species for the phytoremediation of phenanthrene-contaminated sites.

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The effect of moisture on soil microbial properties and nitrogen cyclers in Mediterranean sweet orange orchards under organic and inorganic fertilization

Cited by 62 publications

References 70 publications

Implication of Urochloa spp. Intercropping and Conservation Agriculture on Soil Microbiological Quality and Yield of Tahiti Acid Lime in Long Term Orchard Experiment

Implication of Urochloa spp. Intercropping and Conservation Agriculture on Soil Microbiological Quality and Yield of Tahiti Acid Lime in Long Term Orchard Experiment

Temperature, soil moisture, and microbial controls on CO₂ and CH₄ emissions from a permafrost peatland

Phytoremediation potential of rapeseed in phenanthrene‐contaminated soils under different irrigation regimes and pumice levels

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The effect of moisture on soil microbial properties and nitrogen cyclers in Mediterranean sweet orange orchards under organic and inorganic fertilization

Cited by 62 publications

References 70 publications

Implication of Urochloa spp. Intercropping and Conservation Agriculture on Soil Microbiological Quality and Yield of Tahiti Acid Lime in Long Term Orchard Experiment

Implication of Urochloa spp. Intercropping and Conservation Agriculture on Soil Microbiological Quality and Yield of Tahiti Acid Lime in Long Term Orchard Experiment

Temperature, soil moisture, and microbial controls on CO2 and CH4 emissions from a permafrost peatland

Phytoremediation potential of rapeseed in phenanthrene‐contaminated soils under different irrigation regimes and pumice levels

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Product

Resources

About

Temperature, soil moisture, and microbial controls on CO₂ and CH₄ emissions from a permafrost peatland