<i>Jatropha</i> seed cake and organic waste compost: the potential for improvement of soil fertility

Elbl, Jakub; Sláma, Petr; Vaverková, Magdalena Daria; Plošek, Lukáš; Adamcová, Dana; Škarpa, Petr; Kynický, Jindřích; Havlicek, Zdenek; Dvořáčková, Helena; Brtnický, Martin; Kabourková, Eliška

doi:10.1515/eces-2016-0009

Cited by 8 publications

(6 citation statements)

References 36 publications

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“…Despite the measured values indicate a positive effect on reducing the soil phytotoxicity compared to the effect of biochar, this effect has not been statistically proven in either test setup with OECD soil (Table 6) or burnt soil (Table 7). The positive effect of compost on reducing the soil phytotoxicity was expected because of its physicochemical properties [34] which are the result of the composting process and the properties of input materials [35][36][37]. Compost is, thanks to its sorption capacity which is similar to the one of the soil sorption complex, able to bond positively charged particles (heavy metals and other compounds) which can cause soil phytotoxicity [34].…”

Section: Results Of the Phytotoxicity Testmentioning

confidence: 99%

Assessing the Ecotoxicity of Soil Affected by Wildfire

2021

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This study was carried out to assess the ecotoxicity of soil affected by wildfire using two laboratory toxicity tests, and to investigate the possibility of application of selected soil amendment into the burnt soil in order to improve its properties for faster post-fire reclamation. A phytotoxicity test is a fast-indicative test for revealing acute toxicity and was performed on quickly growing plant species Sinapis alba L. and Lepidium sativum L., while a pot experiment is a standardized toxicity test with a longer experiment duration and was carried out with Lolium perenne L., Festuca rubra L., Brassica juncea L. Diatomite, bentonite, compost, and biochar were supplemented to the soil. Regarding the phytotoxicity test only 3% w/w of biochar stimulated the growth of Lepidium sativum L. Pot experiment confirmed that effect of soil application amendments on biomass yield is more significant than the plant species. The average highest biomass yields were achieved in treatments with bentonite and diatomite. Subsequent research should focus on investigating possible combinations of soil amendments for burnt soil reclamation and complementing the experiments with chemical analysis.

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Section: Results Of the Phytotoxicity Testmentioning

confidence: 99%

Assessing the Ecotoxicity of Soil Affected by Wildfire

2021

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“…The field measurements of I were taken using a Mini Disk Infiltrometer (MDI; Decagon Devices, Inc., Pullman, WA, USA; Figure A4 ) according to Robichaud et al [ 28 ]. Based on the conducted verification experiments according to Elbl et al [ 18 ] and Elbl et al [ 37 ], tension ( h 0 ) was adjusted to the value of 2 cm. MDI was always placed on the soil surface so that maximum contact with the soil could be ensured.…”

Section: Methodsmentioning

confidence: 99%

Effect of Drought on the Development of Deschampsia caespitosa (L.) and Selected Soil Parameters during a Three-Year Lysimetric Experiment

Elbl

Lukas

Sobotková³

et al. 2023

Life

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This work presents results from a field experiment which was focused on the impact of the drought period on microbial activities in rhizosphere and non-rhizosphere soil. To demonstrate the effect of drought, the pot experiment lasted from 2012 to 2015. Fifteen lysimeters (plastic containers) were prepared in our area of interest. These lysimeters were filled with the subsoil and topsoil from this area and divided into two groups. The first group consisted of two variants: V1 (control) and V2 (84 kg N/ha), which were not stressed by drought. The second group consisted of three variants, V3 (control), V4 (84 kg N/ha), and V5 (84 kg N/ha + 1.25 L lignohumate/ha), which were stressed by drought every year of the experiment for 30 days. Changes in the soil moisture content caused by drought significantly affect the growth of Deschampsia caespitosa L., the microbial activity, and the soil’s capacity to retain nutrients. The measured basal respiration and dehydrogenase activity values confirm the significant effect of drought on microbial activity. These values were demonstrably higher in the period before drought simulation by more than 60%. On the other hand, significant differences between microbial activities in the rhizosphere and non-rhizosphere soil were not found. We did not find a clear effect of drought on the formation of soil water repellency.

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“…In addition to biogas, a side product of the AD process is digestate, which can have high agronomic value as fertilizer thanks to the high content of mineral nitrogen and relatively stable organic matter [17,18]. Digestate was demonstrated to have positive effects in agriculture on the growth and production of crops if applied to post-harvest residues or in combination with readily degradable organic matter [19] as compared with other kinds of organic fertilizers [20]. Processes taking place during the AD of the organic feedstock enhance the properties of the biomass source; e.g., it improves the availability of N in digestate and P in plants [21].…”

Section: Introductionmentioning

confidence: 99%

Effect of Mycotoxins in Silage on Biogas Production

Kintl,

Vítěz,

Huňady

et al. 2023

Bioengineering

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Mycotoxins can pose a threat to biogas production as they can contaminate the feedstock used in biogas production, such as agricultural crops and other organic materials. This research study evaluated the contents of deoxynivalenol (DON), zearalenone (ZEA), fumonisin (FUM), and aflatoxin (AFL) mycotoxins in maize silage prior to it being processed in a biogas plant and in digestate produced at the end of the anaerobic digestion (AD) process. In the experiment, three samples of silage were collected from one silage warehouse: Variant 1 = low contamination, Variant 2 = medium contamination, and Variant 3 = heavy contamination, which were subjected to investigation. A significantly reduced biogas production was recorded that was proportional to the increasing contamination with molds, which was primarily due to the AD of silage caused by technologically erroneous silage treatment. The AD was connected with changes in silage composition expressed by the values of VS content, sugar content, lactic acid content, acetic acid content, and the ratio of lactic acid content to acetic acid content. The production of biogas and methane decreased with the increasing contents of NDF, ADF, CF, and lignin. The only exception was Variant 2, in which the content of ADF, CF, and lignin was lower (by 8–11%) than that in Variant 1, and only the content of NDF was higher (by 9%) than that in Variant 1. A secondary factor that also correlated with changes in the composition of the substrate was the development of undesirable organisms, which further contributed to its degradation and to the production of mycotoxins. It was also demonstrated in this study that during the AD process, the tested mycotoxins were degraded, and their content was reduced by 27–100%. Only the variant with low mold contamination showed a DON concentration increase of 27.8%.

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Jatropha seed cake and organic waste compost: the potential for improvement of soil fertility

Cited by 8 publications

References 36 publications

Assessing the Ecotoxicity of Soil Affected by Wildfire

Assessing the Ecotoxicity of Soil Affected by Wildfire

Effect of Drought on the Development of Deschampsia caespitosa (L.) and Selected Soil Parameters during a Three-Year Lysimetric Experiment

Effect of Mycotoxins in Silage on Biogas Production

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