Long-term impacts of de-oiled two-phase olive mill waste on soil chemical properties, enzyme activities and productivity in an olive grove

López‐Piñeiro, Antonio; Albarrán, Ángel; Nunes, José Rato; Peña, David; Cabrera, D.

doi:10.1016/j.still.2011.05.002

Cited by 49 publications

(38 citation statements)

References 54 publications

(68 reference statements)

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“…In order to evaluate the effect of alperujo application on other nutrients of the soil, the levels of available K and P were compared between both treatments in samples taken 200 days after alperujo amendment. In agreement with published data [8,9,23], available K and P significantly increased in amended soils both in the superficial and deeper samples ( figure 6). This increase could result from a direct contribution of the P and K of the applied alperujo, or it could be an indirect effect of increased ion retention due to the higher levels of soil OM in amended soils.…”

Section: Organic Matter and Soil Nutrientssupporting

confidence: 92%

“…Strikingly, C/N ratio was not affected in any of the evaluated samples ( figure 5). These results are consistent with published data indicating that alperujo surface application increases soil OM and total N without producing N immobilisation [8,23]. The observed increase in soil OM and N, without affecting C/N ratio, could be of great significance in arid climates where agricultural soils poor in OM are subject to intense degradation.…”

Section: Organic Matter and Soil Nutrientssupporting

confidence: 92%

“…These results agree with published data reporting that olive mill wastes application as soil amendment produce a high increase in PC levels. These levels rapidly decrease when the wastes stop being applied [23]. The same effect was observed in a report evaluating the evolution of chemical parameters on the soils around disposal ponds for olive mill wastes.…”

Section: Water Soluble Phenolic Compoundssupporting

confidence: 73%

“…Two reasons might have caused these values to remain stable: a dilution effect given the low proportion of applied alperujo compared to the soil in the samples and/or the increase in soil OM content that retains ion exchange. A recently published work shows a significant increase in soil EC after eight years of repeated application of dried and de-oiled alperujo [23]. In other work, the same researchers reported higher EC levels after five years of alperujo application, though insufficient to affect adversely the normal growth of most crops [8].…”

Section: Soil Ph and Electrical Conductivitymentioning

confidence: 86%

See 3 more Smart Citations

Short-term dynamics of soil chemical parameters after application ofalperujoin high-density drip-irrigated olive groves in Argentina

Monetta

Bueno

Cornejo

et al. 2012

International Journal of Environmental Studies

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Section: Organic Matter and Soil Nutrientssupporting

confidence: 92%

Section: Organic Matter and Soil Nutrientssupporting

confidence: 92%

Section: Water Soluble Phenolic Compoundssupporting

confidence: 73%

Section: Soil Ph and Electrical Conductivitymentioning

confidence: 86%

See 2 more Smart Citations

Short-term dynamics of soil chemical parameters after application ofalperujoin high-density drip-irrigated olive groves in Argentina

Monetta

Bueno

Cornejo

et al. 2012

International Journal of Environmental Studies

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“…This is efficiency due to presence of easily decomposable organic compounds in OMW that stimulate soil microorganisms and their activities [7,8] inducing decomposition and mineralization processes. In addition to biodegradation part of the applied organic substrate and nutrients may be retained into the soil matrix [9,10], leading to enhancement of soil fertility [6,7,11,12]. Also, OMW application may cause alterations in soil biological properties [7,[13][14][15][16] associated with the changing nutrient availabilities and/or toxicity phenomena.…”

Section: Introductionmentioning

confidence: 99%

Land Application-Based Olive Mill Wastewater Μanagement

Kapellakis

Tzanakakis²,

Angelakιs

2015

Water

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Land application of olive mill wastewater (OMW) is considered a promising low-cost practice for olive-oil producing countries. The objectives of this work were to investigate: (i) OMW treatment potential of a land treatment system (LTS), planted with a E. camaldulensis species, regarding N, P, C, and phenols; (ii) the effects of OMW on chemical properties of soil and soil solution characteristics; and (iii) the performance of E. camaldulensis in terms of biomass production and N and P recovery. E. camaldulensis received OMW for two growing seasons at rates based on maximum organic loading. These rates were almost equivalent to the reference evapotranspiration of the area. Soil solution and soil samples were collected from three different depths (15, 30 and 60 cm) at specified time intervals. -Also, samples of plant tissues were collected at the end of application periods. OMW land application resulted in significant reduction in inorganic and organic constituents of OMW. At 15 cm of soil profile, the average removal of COD, TKN, NH4 + -N, TP, In-P, and total phenols approached 93%, 86%, 70%, 86%, 82%, and 85%, respectively, while an increase in soil depth (30 and 60 cm) did not improve significantly treatment efficiency. Furthermore, OMW increased soil organic matter (SOM), total kjeldahl nitrogen (TKN), and available P, particularly in the upper soil layer. In contrast, low inorganic N content was observed in the soil throughout the study period caused probably by increased competition among soil microorganisms induced by the organic substrate supply and high C/N ratio. Also, electrical conductivity (EC) and SAR OPEN ACCESSWater 2015, 7 363 increased by OMW addition, but at levels that may do not pose severe risk for soil texture. Enhancement of soil fertility due to OMW application sustained eucalyptus trees and provided remarkable biomass yield. In conclusion, land application of OMW has a great potential for organic matter and phenol assimilation and can be effectively used for OMW detoxification.

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Variation in Soil Organic Carbon and Nitrogen Stocks Along a Toposequence in a Traditional Mediterranean Olive Grove

Lozano‐García

Parras-Alcántara

2014

Land Degrad Dev

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The impact of the topographical position on soil properties was evaluated in an olive grove with traditional tillage. Three topographical positions: summit, backslope and toeslope were chosen for evaluation. The soil samples were taken from four soil sections of 0·25 m (0-1 m). The soil organic carbon (SOC) and N content increased along the downslope direction (5·5, 6·5 and 7·1 g C kg À1 and 0·3, 0·8 and 0·9 g N kg À1 in the surface layer in the summit, backslope and toeslope respectively) as well as SOC and N stocks, considering the two first soil sections. In addition, there was movement of the most erodible textural fraction (silt). However, the total SOC stock (refer to 1 m of depth) did not vary with respect to the topographical position, but the total N stock (refer to 1 m of depth) varied significantly. These increases were due to erosion processes that occur along the toposequence, leading to organic matter transfers from the summit to the toeslope. All the stratification ratios calculated were lower than 2, indicating the low quality of the soils. Therefore, alternative management techniques that avoid soil erosion must be considered in olive grove in order to increase the soil quality and fertility.

show abstract

Long-term impacts of de-oiled two-phase olive mill waste on soil chemical properties, enzyme activities and productivity in an olive grove

Cited by 49 publications

References 54 publications

Short-term dynamics of soil chemical parameters after application ofalperujoin high-density drip-irrigated olive groves in Argentina

Short-term dynamics of soil chemical parameters after application ofalperujoin high-density drip-irrigated olive groves in Argentina

Land Application-Based Olive Mill Wastewater Μanagement

Variation in Soil Organic Carbon and Nitrogen Stocks Along a Toposequence in a Traditional Mediterranean Olive Grove

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