Effects of Nitrogen Rate on the Growth, Yield and Quality of Tomato in Greenhouse Fertilization With Biogas Slurry

Ning, Xu; Yu, Han; Jiang, Wen; Liu, X.R.

doi:10.17660/actahortic.2012.927.122

Cited by 1 publication

(2 citation statements)

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“…Unfortunately, it is difficult to compare the results of this study to those obtained in previous studies because the fertilizing performance of DPs depends on the origin and composition of the feedstock and has been investigated under experimental conditions (pot vs. field trials) that vary in the plant tested (e.g., tomato, rice, potato) and the fertilization rate (Abubaker et al 2012;Garfi et al 2011;Ning et al 2011;Nishikawa et al 2012).…”

Section: Plant Growth Testmentioning

confidence: 99%

“…There is a lack of specific regulation on the use of OFMSW or its derivates in agriculture: only the agricultural use of wastewater digestion sludge (D. Lgs. 99/1992) According to the literature, the physico-chemical properties of DPs have been widely investigated, whereas fertilization studies are still scarce (Abubaker et al 2012;Garfi et al 2011;Ning et al 2011;Nishikawa et al 2012;Tambone et al 2010). However, the DPs are not harmless products because they contain heavy metals and may also contain organic pollutants, such as pesticides and pathogenic bacteria that are introduced to the soil ecosystem by their application.…”

Section: Introductionmentioning

confidence: 99%

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Agricultural Reuse of the Digestate from Anaerobic Co-Digestion of Organic Waste: Microbiological Contamination, Metal Hazards and Fertilizing Performance

Bonetta

Ferretti

et al. 2014

Water Air Soil Pollut

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The aim of this study was to evaluate the agricultural reuse of the digestate products (DPs) obtained from mesophilic anaerobic co-digestion of different organic wastes (sludge, cattle slurries and the organic fraction of municipal solid wastes). At this scope, the content of faecal indicators and pathogens as well as the heavy metal concentration of DPs was monitored. The fertilizing performance of the DPs was also investigated. Co-digestion trials were performed using laboratory-scale (LRs) and pilot-scale reactors (PRs). The microbiological analysis of DPs showed the common presence of Salmonella and an inadequate reduction of indicator organisms during the digestion process, both in the LRs and the PRs. Moreover, the presence of pathogens (e.g. L. monocytogenes) in some DP samples highlighted the importance of the microbiological quality evaluation of the DPs to study the possible health risks for consumer. In several samples of DPs, the Cu, Ni and Zn content exceeded the maximum admissible concentration for fertilizer, as specified by Italian law, suggesting possible environmental contamination if the DPs are used for agricultural purposes. Considering the fertilizing performance, significant differences of growth parameters were observed only for the DPs that were produced by LRs. In conclusion this work can be considered as a preliminary study to evaluate the possible agricultural reuse of the digestate obtained from different organic wastes.

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Section: Plant Growth Testmentioning

confidence: 99%