Nitrogen dynamics and microbial response in soil amended with either olive pulp or its by-products after biogas production

Gioacchini, Paola; Manici, L.; Ramieri, N. A.; Marzadori, Claudio; Ciavatta, Claudio

doi:10.1007/s00374-006-0141-2

Cited by 16 publications

(5 citation statements)

References 40 publications

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“…Despite the suggested role of the microbial immobilization of N, the soils amended with digestates still showed levels of TIN higher than those measured under the control conditions, as also observed by de la Fuente et al [59]. The use of digestates as soil amendments produced the largest increase in the TIN soil content within 3 weeks of incubation, and again four weeks later, yet the OCMD amendment showed the highest TIN by the end of the incubation, in agreement with previous reports [48,60]. Compost and LDE application moderately increased the TIN content in soil at the time of amendment, and rapidly returned to basal values similar to or slightly higher than the CT, as reported by others [61,62].…”

Section: N Mineralizationsupporting

confidence: 91%

Towards Sustainable Dairy Production in Argentina: Evaluating Nutrient and CO2 Release from Raw and Processed Farm Waste

et al. 2021

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Mineralization studies are the first step in determining the usefulness of an amendment such as fertilizer, and are essential to creating guidelines for dairy waste management to help producers make informed decisions. Our goal was to assess the effects of dairy raw, composted, and digested manure amendments on C, N, and P mineralization to evaluate the feasibility of their in-farm production and use as organic fertilizers. The liquid and solid fractions of dairy effluent (LDE, SDE), dairy effluent digestate (DED), onion–cattle manure digestate and compost (OCMD, OCMC) were characterized by chemical and spectroscopic methods. Soil microcosms with LDE, SDE, DED, OCMD and OCMC and the C, N and P mineralization were determined periodically. Elemental and structural differences among amendments led to contrasting profiles of C, N, and P mineralization, and thus to differences in nutrient availability, immobilization, and CO2 emission. All processed materials were more stable than untreated waste, reducing C emissions. Digestates showed net C immobilization, and supplied the highest levels of available N, creating a relative P deficit. Instead, the compost supplied N and P via mineralization, producing a relative P excess. Future studies should aim at evaluating fertilization strategies that combine both kinds of amendments, to exploit their complimentary agronomic characteristics.

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Section: N Mineralizationsupporting

confidence: 91%

Towards Sustainable Dairy Production in Argentina: Evaluating Nutrient and CO2 Release from Raw and Processed Farm Waste

et al. 2021

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“…The continuous irrigation of the soils with diluted OMW results in high availability of variable easily decomposable C sources and nutrients, increased amounts of recalcitrant phenolics and concurrent immobilization of N (Levi‐Minzi et al , 1992; Gioacchini et al , 2007; Sierra et al , 2007). N availability in both soils studied was limited, as clearly indicated by the dramatic response of plants to N fertilizer (Fig.…”

Section: Discussionmentioning

confidence: 99%

Effect of continuous olive mill wastewater applications, in the presence and absence of nitrogen fertilization, on the structure of rhizosphere-soil fungal communities

Karpouzas

Rousidou

Papadopoulou

et al. 2009

FEMS Microbiology Ecology

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Olive mill wastewater (OMW) is rich in potentially toxic organics precluding its disposal into water receptors. However, land application of diluted OMW may result in safe disposal and fertilization. In order to investigate the effects of OMW on the structure of soil fungal groups, OMW was applied daily to pepper plants growing in a loamy sand and a sandy loam at two doses for a period of 3 months (total OMW equivalents 900 and 1800 m(3) ha(-1)). Nitrogen (N) fertilization alleviated N scarcity and considerably enhanced plant biomass production; however, when applied in combination with the high OMW dose, it induced plant stress. OMW applications resulted in marked changes in the denaturing gradient gel electrophoresis patterns of soil basidiomycete communities, while concurrent N fertilization reduced these effects. In contrast, the ascomycete communities required N fertilization to respond to OMW addition. Cloning libraries for the basidiomycete communities showed that Cryptococcus yeasts and Ceratobasidium spp. dominated in the samples treated with OMW. In contrast, certain plant pathogenic basidiomycetes such as Thanatephorus cucumeris and Athelia rolfsii were suppressed. The observed changes may be reasonably explained by the capacity of OMW to enrich soils in organic substrates, to induce N immobilization and to directly introduce OMW-derived basidiomycetous yeasts.

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“…It is also known that OMW contain oil compounds that may result in increased soil hydrophobicity and decrease water retention and infiltration rate [18]. The use of OMW in agriculture may also affect acidity, salinity, N immobilization, microbial response, leaching of nutrients and concentration of lipids, organic acids and phenolics [9,[19][20][21][22]. These latter compounds with bactericide and phytotoxic properties may cause alterations in N cycle, changes in soil microbial activity as well as contamination of surface-and groundwater [23][24][25]21].…”

Section: Introductionmentioning

confidence: 98%

Disposal of olive oil mill wastes in evaporation ponds: Effects on soil properties

Kavvadias

Doula

Komnitsas

et al. 2010

Journal of Hazardous Materials

139

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Nitrogen dynamics and microbial response in soil amended with either olive pulp or its by-products after biogas production

Cited by 16 publications

References 40 publications

Towards Sustainable Dairy Production in Argentina: Evaluating Nutrient and CO2 Release from Raw and Processed Farm Waste

Towards Sustainable Dairy Production in Argentina: Evaluating Nutrient and CO2 Release from Raw and Processed Farm Waste

Effect of continuous olive mill wastewater applications, in the presence and absence of nitrogen fertilization, on the structure of rhizosphere-soil fungal communities

Disposal of olive oil mill wastes in evaporation ponds: Effects on soil properties

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