Availability and dynamics of organic carbon and nitrogen indices in some soils amended with animal manures and ashes

Olowoboko, Toyin Blessing; Azeez, J. O.; Olujimi, Olanrewaju Olusoji; Babalola, O.

doi:10.1007/s40093-018-0215-9

Cited by 8 publications

(4 citation statements)

References 16 publications

(19 reference statements)

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“…The authors also highlighted that the organic carbon content was smaller the longer the experiment lasted (regardless of the fluctuations in some sampling dates). Opposite results were presented by Olowoboko et al [58]. The authors, after conducting an 8-week incubation experiment, found that the addition of dried manure (cattle, goat, and chicken), ash from these materials, and mineral fertilization with NPK, as a rule, led to an increase in organic carbon content, in comparison to the control treatment (without additives).…”

Section: Total Organic Carbon Contentmentioning

confidence: 85%

Environmental and Production Aspects of Using Fertilizers Based on Waste Elemental Sulfur and Organic Materials

et al. 2022

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Crop fertilization with sulfur is an important part of agricultural practices, as is the systematic increase in soil organic matter content. Materials of waste origin constitute a source of plant-available sulfur, as well as soil organic matter. The study was to verify the hypothesis assuming that combining waste sulfur pulp and its mixtures with organic materials enables simultaneous soil enrichment with readily available sulfur and organic matter. A 240-day incubation experiment was conducted, on two soils: very light and heavy; with two sulfur doses applied to each soil (20 and 40 mg S/kg d.m. for very light soil, and 30 and 60 mg S/kg d.m. for heavy soil). The sulfate sulfur content in the incubated soil material, treated with the addition of sulfur pulp and its mixtures with organic materials, increased significantly up to day 60 and then decreased. The application of these materials significantly increased the content of available sulfur and decreased the pH value of the incubated material. The effect of the introduced materials on dehydrogenase activity depended on soil granulometric composition (the impact of the applied materials on the activity of these enzymes in very light soil was small, and in heavy soil, their activity was usually limited by the presence of introduced materials). Application of the studied materials had little effect on the total organic carbon content in the incubated soil material (a significant change in the value of this parameter, in relation to the control soil, was recorded in some treatments of heavy soil).

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Section: Total Organic Carbon Contentmentioning

confidence: 85%

Environmental and Production Aspects of Using Fertilizers Based on Waste Elemental Sulfur and Organic Materials

et al. 2022

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“…During the decomposition of manure, the N that is readily available and abundant stimulates the mineralization of soil N (Tracy & Frank, 1998). In addition, manure can increase soil organic N content (Ma et al, 2020), which is mediated by microbial activities (Olowoboko et al, 2018), exerting a priming effect on SOM (Ma et al, 2020). The addition of crop residues and/or manure to the soil is considered an effective alternative that can act as a fertilizer, increasing SOM concentrations and improving the biological activity and nutrient availability in soil (Dubeux et al, 2009; Maia et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Integrated crop‐livestock versus conventional systems: Effects on the chemical and physical characteristics of an Oxisol

Augusto,

de Paz,

Mendonça

et al. 2024

Grass and Forage Science

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Studies have reported improvements in soil quality in integrated crop‐livestock systems (ICLS) when compared to conventional systems. The hypothesis of this study was that ICLS improve Oxisol quality due to the use of intercropping, adding pasture and cattle to the systems. The aim of the study was to evaluate the chemical and physical characteristics of an Oxisol and pasture production in the integrated system versus conventional system. We compared two conventional systems: crop system (maize grain production) and livestock system (beef cattle on single pasture) and, four ICLS: maize plus Marandu palisade grass sown simultaneously without herbicide (ICLS‐1); maize plus Marandu palisade grass sown simultaneously with herbicide (ICLS‐2); maize plus Marandu palisade grass in lagged sowing (ICLS‐3); and maize plus Marandu palisade grass sown simultaneously in maize rows and inter‐rows with herbicide (ICLS‐4). A randomized block design with six treatments and three replicates was used. The results suggest improvements in soil quality, including soil organic carbon (ICLS‐4), total nitrogen, and nitrogen stocks (ICLS‐1, ICLS‐2, and ICLS‐4). The intercropping technique influenced pasture production and soil quality during the implementation of integrated systems. The lowest soil strength was obtained for the crop system compared to systems with grazing animals but there were no changes in the soil physical characteristics that could compromise the production system.

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“…Changes in stable SOC usually occur very slowly (over decades) and, therefore, changes in the organic carbon content of agricultural soils are small, being most often determined in the upper layers. Due to its stability over time, SOC can be an important factor influencing the actual sorption/desorption processes of different toxic metals in soil [43,44].…”

Section: Evaluation Of the Influence Of Factors On The Extraction Of ...mentioning

confidence: 99%

“…The desorption process involves selecting a distribution coefficient with the lowest value (high mobility) [47]. The characterization of Kd in the laboratory system and the extrapolation in the real environment can be difficult, mostly due to the complexity of the mechanisms involved in the sorption/desorption process [43].…”

Section: Evaluation Of the Influence Of Factors On The Extraction Of ...mentioning

confidence: 99%

Evaluation of the Phytoremediation Potential of the Sinapis alba Plant Using Extractable Metal Concentrations

Vasilache,

Diacu,

Cananau

et al. 2023

Plants

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Testing the feasibility of soil phytoremediation requires the development of models applicable on a large scale. Phytoremediation mechanisms include advanced rhizosphere biodegradation, phytoaccumulation, phytodegradation, and phytostabilization. The aim of this study was to evaluate the phytoremediation potential of the Sinapis alba. Identification of the factors influencing the extraction process of metals from contaminated soils in a laboratory system suitable for evaluating the phytoavailability of these metals in three solutions (M1-CaCl2, M2-DTPA, and M3-EDTA) included the following: distribution of metals in solution (Kd), soil properties and mobile fractions (SOC, CEC, pH), response surface methodology (RSM), and principal component analysis (PCA). The evaluation of the phytoremediation potential of the Sinapis alba plant was assessed using bioaccumulation coefficients (BACs). The accumulation of heavy metals in plants corresponds to the concentrations and soluble fractions of metals in the soil. Understanding the extractable metal fractions and the availability of metals in the soil is important for soil management. Extractable soluble fractions may be more advantageous in total metal content as a predictor of bioconcentrations of metals in plants. In this study, the amount of metal available in the most suitable extractors was used to predict the absorption of metals in the Sinapis alba plant. Multiple regression prediction models have been developed for estimating the amounts of As and Cd in plant organs. The performance of the predictive models generated based on the experimental data was evaluated by the adjusted coefficient of determination (aR2), model efficiency (RMSE), Durbin–Watson (DW) test, and Shapiro–Wilk (SW) test. The accumulation of the analyzed metals followed the pattern Root > Pods > Leaves > Seeds, stems > Flowers for As and Leaves > Root > Stem > Pods > Seeds > Flowers for Cd in soil contaminated with different metal concentrations. The obtained results showed a phytoremediation potential of the Sinapis alba plant.

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Availability and dynamics of organic carbon and nitrogen indices in some soils amended with animal manures and ashes

Cited by 8 publications

References 16 publications

Environmental and Production Aspects of Using Fertilizers Based on Waste Elemental Sulfur and Organic Materials

Environmental and Production Aspects of Using Fertilizers Based on Waste Elemental Sulfur and Organic Materials

Integrated crop‐livestock versus conventional systems: Effects on the chemical and physical characteristics of an Oxisol

Evaluation of the Phytoremediation Potential of the Sinapis alba Plant Using Extractable Metal Concentrations

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