Changes of organic constituents of crop residues and poultry wastes during fermentation for biogas production

El-Shinnawi, M.M.; El-Tahawi, B. S.; El-Houssieni, M.; Fahmy, Soheir S.

doi:10.1007/bf01741823

Cited by 20 publications

(10 citation statements)

References 4 publications

(7 reference statements)

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“…A lower level of carbon remaining in the residue is available for microbial degradation, compared to that in untreated waste and/or manure and/or slurry, and digested residues contain less total C as a result of conversion to CH 4 during the degradation process [1,47,50,53,69]. Moreover, the amount of lignin is higher in anaerobically digested residues than conventional slurry [72], similar to that in residues produced during thermophilic composting [73].…”

Section: Effects Of Biogas Residue On Plant Growthmentioning

confidence: 98%

Closing the Global Energy and Nutrient Cycles through Application of Biogas Residue to Agricultural Land – Potential Benefits and Drawback

2009

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Anaerobic digestion is an optimal way to treat organic waste matter, resulting in biogas and residue. Utilization of the residue as a crop fertilizer should enhance crop yield and soil fertility, promoting closure of the global energy and nutrient cycles. Consequently, the requirement for production of inorganic fertilizers will decrease, in turn saving significant amounts of energy, reducing greenhouse gas emissions to the atmosphere, and indirectly leading to global economic benefits. However, application of this residue to agricultural land requires careful monitoring to detect amendments in soil quality at the early stages.

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Section: Effects Of Biogas Residue On Plant Growthmentioning

confidence: 98%

Closing the Global Energy and Nutrient Cycles through Application of Biogas Residue to Agricultural Land – Potential Benefits and Drawback

2009

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“…Anaerobic digestion causes no alteration in the total nutrient content, but the organic-matter content is reduced and mostly stable and hardly degradable organic compounds remain (Asmus et al, 1988;El-Shinnawi et al, 1989). Moreover, anaerobic digestion leads to a redrease in C : N ratio (Möller et al, 2008), an increase in pH, and the mineral N (NH 4 -N) content may be enhanced as much as 38% (Field et al, 1984;Masse et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Codigested dairy slurry as a phosphorus and nitrogen source for Zea mays L. and Amaranthus cruentus L.

Bachmann

Wentzel

Eichler‐Löbermann

2011

Z. Pflanzenernähr. Bodenk.

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Residues from biogas production contain essential plant nutrients such as nitrogen (N), phosphorus (P), and potassium (K) but also organic matter, and should be recycled in crop production. For efficient re-use as fertilizers, the availability of nutrients for crops and the effect of the residues on soil fertility need to be evaluated. Focusing on the element P, we compared effects of codigested slurry with dairy slurry, highly soluble mineral NPK fertilizer, and a control without any P supply (NK). Codigested slurry used in this experiment was based on anaerobic digestion of dairy slurry, maize silage, and wheat grain. The fertilizing effects were tested in an 8-week pot experiment on a sandy and a loamy soil using two crop species (Zea mays L., Amaranthus cruentus L.). The plant P uptake was up to 64% greater in the slurry treatments than in the treatment without P. The effect of codigested slurry on P uptake was comparable to that of dairy slurry and mineral P. Plant N uptake from codigested slurry was lower than that from mineral N (NK, NPK), but tended to be higher than from dairy slurry. The water-soluble and double lactate-soluble P content of the soil was lower in the slurry treatments than in the mineral-P treatments and accompanied by higher contents of microbial-bound P. Differences between both organic fertilizers were detected for dehydrogenase activity which was up to 32% lower in soils fertilized with codigested slurry than it was in soils fertilized with dairy slurry. Our results indicate that codigestion of slurries in biogas plants does not substantially alter their fertilizer value as P and N sources for crops.

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“…The Rhizobium-legume symbiosis, and particularly nodule formation, has been shown to be more sensitive to soil salinity than the microsymbiont itself (Zahran and Sprent 1986;El-Shinnawi et al 1989;Velagaleti et al 1990;Zahran 1991). In this way, salt concentrations that decrease symbiotic performance are usually different to those that affect growth of each symbiotic partner (Bordeleau and Présvost 1994;El-Hamdaoui et al 2003).…”

Section: Discussionmentioning

confidence: 96%

Comparative symbiotic performance of native rhizobia of the Flooding Pampa and strains currently used for inoculating Lotus tenuis in this region

Sannazzaro

Bergottini

Paz

et al. 2010

Antonie van Leeuwenhoek

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The Flooding Pampa (FP) is the most important area for cattle breeding in Argentina. In this region, persistence and yield of typical forage legumes are strongly limited by soil salinity and alkalinity, which affect around 30% of the total area. Instead, naturalized Lotus tenuis is the main forage legume in this region. Rhizobial strains currently used for inoculating L. tenuis in the FP are exotic or native from non-saline soils of this region, their taxonomic identity being unknown. Assuming that rhizobia native from the most restrictive environments are well adapted to adverse conditions, the use of such isolates could improve the productivity of L. tenuis in the FP. Hence, the goal of this study was to evaluate the symbiotic efficiency of selected L. tenuis rhizobia native from the FP, as compared with strains currently used for field inoculation of this legume. Under non-stressing conditions, the symbiotic performance of native strains of FP exceeded those ones currently used for L. tenuis. Moreover, the symbiotic performance of the native strain ML103 was considerably high under salt stress, compared with strains currently used as inoculants. Analysis of 16S rRNA gene sequencing revealed that unclassified rhizobia currently used for field inoculation of L. tenuis and native strains grouped with the genus Mesorhizobium. As a whole, results obtained demonstrate that soils of the FP are a source of efficient and diverse rhizobia that could be used as a sustainable agronomic tool to formulate inoculants that improve forage yield of L. tenuis in this region.

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Changes of organic constituents of crop residues and poultry wastes during fermentation for biogas production

Cited by 20 publications

References 4 publications

Closing the Global Energy and Nutrient Cycles through Application of Biogas Residue to Agricultural Land – Potential Benefits and Drawback

Closing the Global Energy and Nutrient Cycles through Application of Biogas Residue to Agricultural Land – Potential Benefits and Drawback

Codigested dairy slurry as a phosphorus and nitrogen source for Zea mays L. and Amaranthus cruentus L.

Comparative symbiotic performance of native rhizobia of the Flooding Pampa and strains currently used for inoculating Lotus tenuis in this region

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