The Stabilization Method of Sewage Sludge Affects Soil Microbial Attributes and Boosts Soil P Content and Maize Yield in a Sludge-Amended Soil in the Field

Silva, William Ramos da; Fracetto, Giselle Gomes Monteiro; Fracetto, Felipe José Cury; Silva, Ygor Jacques Agra Bezerra da; Souza, Adriana Alves Batista de; Nascimento, Clístenes Williams Araújo do

doi:10.1007/s42729-021-00729-0

Cited by 3 publications

(2 citation statements)

References 24 publications

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“…Salinity and element availability differentially affect growth, leaf morphology, water relations, solutes accumulation, and antioxidant capacity in plants [ 3 , 4 ]. It has been observed that the constant changes in the fertility of the soil occurred through various organic amendment practices [ 5 ]. Soil organic matter (SOM), characterized by the residence time and biodiversity present, regulates the movement of water by increasing the moisture-retaining capacity and provides essential nutrients for plants and microbes [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Organic Manure and Moisture Regimes on Soil Physiochemical Properties, Microbial Biomass Cmic:Nmic:Pmic Turnover and Yield of Mustard Grains in Arid Climate

Bhanwaria

Singh

Musarella

2022

Plants

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(1) Background: Arid conditions occur due to climate abnormality in the different biogeography regions of the world. The aim of this research is to investigate the stoichiometry of manure and moisture regimes on soil properties, microbial biomass C:N:P turnover, and the grain yield of mustard crops under stress in arid conditions; (2) Methods: The field experiment was carried out for 2 years at the farms of the agriculture college of SKN, Jobner (SKRAU Bikaner, Rajasthan). The effects of organic manure, moisture regimes, and saline water treatment on soil properties, such as the soil microbial biomass build-up, loss, turnover, and recycling of carbon (Cmic), nitrogen (Nmic), and phosphorus (Pmic) in the mustard crop were investigated. The twenty-seven treatments studied are described as follows: organic manures (control, FYM @ 10 t ha−1 and vermicompost @ 5 t ha−1), moisture regimes (0.4, 0.6, and 0.8 IW/CPE ratio), and saline irrigation water (control, 6, 12 dSm−1); (3) Results: Our findings indicate that vermicompost @ 5 t ha−1 significantly increases moisture retention and the available water in soil at 33 kPa and 1500 kPa. The microbial biomass build-up of Cmic increases by 43.13% over the control and 14.36% over the FYM. Similarly, the soil microbial biomass of Nmic, and Pmic also increase considerably. The SHC of the soil is enhanced by the application of farmyard fertilizer and vermicompost. The BD and pH decrease significantly, while the SHC, OC, CEC, and ECe of the soil increase significantly. The build-up, losses, and fluxes of the soil microbial biomass of Cmic, Nmic, and Pmic increase significantly, and the turnover rate decreases under vermicompost @ 5 t ha−1. A significant increase in grain yield was observed. Irrigation with a 0.8 IW/CPE moisture regime significantly decreases the pH of the SHC; (4) Conclusions: We hypothesized the interactive outcomes of the moisture regime and found that organic manure significantly influenced grain and stover yield. The treatments of quality irrigation water and the addition of organic manure are efficient enough to improve soil properties, water holding capacity, and soil microbial biomass C:N:P in stress climatic conditions.

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Section: Introductionmentioning

confidence: 99%

Effect of Organic Manure and Moisture Regimes on Soil Physiochemical Properties, Microbial Biomass Cmic:Nmic:Pmic Turnover and Yield of Mustard Grains in Arid Climate

Bhanwaria

Singh

Musarella

2022

Plants

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“…Although other studies indicated a decrease in CO 2 emissions with the reduction of organic matter inputs such as litter [78], our study reported a decrease in soil remediation with an application of organic matter in sewage sludge. The initial application of organic C most likely stimulated soil processes (microbial activity, plant growth) which improved the soil functioning [79] and resulted in higher CO 2 capturing. Our findings are in good agreement with other studies which indicated that post-mining soils may act as an offset of C, released by the extraction of raw material [80].…”

Section: Modeling Error Equitationmentioning

confidence: 99%

Carbon Sequestration in Remediated Post-Mining Soils: A New Indicator for the Vertical Soil Organic Carbon Variability Evaluation in Remediated Post-Mining Soils

et al. 2023

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The present study experimentally investigated two different open-cast post-mining areas with different remediation methods for the vertical distribution of sequestered soil organic carbon (SOC). The study has been performed for two soil layers (0–15 cm, and 15–30 cm) for the four areas with different remediation advancement (up to 20 years) at both studied post-mining soils: the limestone post-mining soil remediated with embankment and lignite post-mining soil remediated with sewage sludge. The study revealed that SOC is more stable within soil depths for lignite post-mining soil remediated with sewage sludge in comparison to the limestone post-mining soil remediated with embankment. The lignite post-mining soil remediated with sewage sludge showed a better hydrophobicity, humidity, aromaticity, and C/N ratio according to the 13C NMR. Therefore, in that soil, an increased microbial community has been observed. The study observed a positive correlation between GRSP content with a fungi community within soil depths. For lignite post-mining soil remediated with sewage sludge, the activity of ureases and dehydrogenases was generally lower compared to the post-mining soil remediation with embankment. The investigation found good parameters of Ce and NCER which for both studied areas were negative which indicate for the privilege of the higher capturing of CO2 over its release from the soil into the atmosphere. The study finds no relevant changes in SOC, POXC, TC, and LOI content within soil depth and remediation age. Due to the lack of a possible well-describing indicator of the vertical distribution of SOC stability in post-mining remediation soil, we proposed two different indicators for differentially managed post-mining soil remediations. The model of calculation of vertical SOC variability index can be universally used for different post-mining soils under remediation, however, both proposed calculated indexes are unique for studied soils. The proposed model of an index may be helpful for remediation management, C sequestration prediction, and lowering the carbon footprint of mining activity.

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Reuse of sun mushroom post-harvest areas as an alternative to maize cropping

Alves,

Iossi,

Caitano

et al. 2023

Preprint

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The reuse of sun mushroom post-harvest areas (SMS) presents an innovative alternative for smallholders seeking to move away from conventional maize cropping systems and reduce their reliance on synthetic fertilizers. This study evaluated the growth of two successive maize crops in post-harvest areas while assessing drivers of yields and soil/leaf macronutrient composition. Four management practices were carried out: SMS, without the application of synthetic fertilization; SMS + S, with the application of synthetic fertilization recommended at sowing; SMS + S + TD, with the application of synthetic fertilization at sowing and topdressing; and Control, a common area with the application of synthetic fertilization. Agronomic aspects and macronutrients soil and leaf contents were evaluated in two successive maize crops in post-harvest areas. Different management practices adopted in the sun mushroom post-harvest areas did not significantly differ between yields in the first crop. SMS provided an increase in P, Ca, and Mg in the soil for the first crop and an increase in P and Ca for the second crop, indicating mineralization of the SMS. Nevertheless, the macronutrient content was reduced in the successive crops without sowing and topdressing fertilization (SMS + S + TD), indicating a dependence on synthetic fertilizers in intensified systems. Despite a nutritional limitation of the Ca: Mg/K ratio, SMS results in a maize yield comparable to the control in the first crop. The application of N in these areas was crucial for the second crop.

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The Stabilization Method of Sewage Sludge Affects Soil Microbial Attributes and Boosts Soil P Content and Maize Yield in a Sludge-Amended Soil in the Field

Cited by 3 publications

References 24 publications

Effect of Organic Manure and Moisture Regimes on Soil Physiochemical Properties, Microbial Biomass Cmic:Nmic:Pmic Turnover and Yield of Mustard Grains in Arid Climate

Effect of Organic Manure and Moisture Regimes on Soil Physiochemical Properties, Microbial Biomass Cmic:Nmic:Pmic Turnover and Yield of Mustard Grains in Arid Climate

Carbon Sequestration in Remediated Post-Mining Soils: A New Indicator for the Vertical Soil Organic Carbon Variability Evaluation in Remediated Post-Mining Soils

Reuse of sun mushroom post-harvest areas as an alternative to maize cropping

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