scholarly journals Olive mill wastewater effects on durum wheat crop attributes and soil microbial activities: A pilot study in Syria

2021 ◽  
Author(s):  
Jehan Khalil ◽  
Hasan Habib ◽  
Michael Alabboud ◽  
Safwan Mohammed
Keyword(s):  
Durum Wheat ◽  
Germination Rate ◽  
Soil Samples ◽  
Olive Mill Wastewater ◽  
The Other ◽  
Wheat Crop ◽  
Microbial Activities ◽  
Soil Microbial ◽  
Growing Seasons ◽  
Olive Mill

AbstractOlive mill wastewater is one of the environmental problems in semiarid regions. The main goals of this study were to investigate the impacts of different olive mill wastewater levels on durum wheat (Triticum aestivum var. Douma1) production and soil microbial activities (i.e., bacteria and fungi). A pot experiment was conducted during the growing seasons 2015/2017 to evaluate the effect of three levels of olive mill wastewater on both growth and productivity attributes of wheat. Vertisol soil samples were collected from southern Syria. Two months before wheat cultivation, three levels of olive mill wastewater: T5 (5 L/m 2), T10 (10 L/m2) and T15 (15 L/m 2) were added to pots filled with the collected soil samples. Also, a control (T0) free of olive mill wastewater was considered as a reference. Results showed a significant increase (p < 0.05) in germination rate (%), plant height (cm), ear length (cm), kernels number, kernels weight per ear (g) and grain yield (g/m2) compared to control. However, T5 treatment did not induce a significant increase in terms of ear length, kernels weight per ear or yield (in the second season). On the other hand, T10 treatment had recorded the best results compared with the other two treatments (T5, T15). Similarly, the results showed a significant increase in the number of bacterial and fungi cells by increasing olive mill wastewater concentration. This research provides promising results toward using olive mill wastewater in an eco-friendly way under Syrian conditions.

Olive-mill wastewater spreading in southern Italy: effects on a durum wheat crop

2003 ◽  
Vol 84 (3) ◽  
pp. 319-326 ◽  
Author(s):  
Michele Rinaldi ◽  
Gianfranco Rana ◽  
Michele Introna
Keyword(s):  
Durum Wheat ◽  
Southern Italy ◽  
Olive Mill Wastewater ◽  
Wheat Crop ◽  
Olive Mill

CAROTENOIDS IN DURUM WHEAT: DEVELOPMENTAL PATTERNS DURING TWO GROWING SEASONS

1975 ◽  
Vol 55 (3) ◽  
pp. 679-684 ◽  
Author(s):  
L. J. LACROIX ◽  
J. B. LIER
Keyword(s):  
Durum Wheat ◽  
Triticum Durum ◽  
The Other ◽  
Developmental Patterns ◽  
Pigment Synthesis ◽  
Growing Seasons ◽  
Pigment Concentrations ◽  
Triticum Durum Desf ◽  
Mature Seeds ◽  
Β Carotene

Variations in seed pigment concentrations of Triticum durum Desf. cv. Hercules were studied during two growing seasons. In the second season, the effects on seed pigment of spraying durum wheat with CPTA (chlorophenylthiotriethylamine) at 3.9 kg/ha, 1 and 2 wk after flowering were also studied. Normal pigment synthesis showed one period of synthesis for chlorophyll, but two for carotenoids. One complement of carotenoids seems to be associated with the chloroplast, while the other is probably located in the endosperm. CPTA appeared to affect the size and duration of chlorophyll and α + β carotene pools. Lutein concentrations at 33 days after flowering were at the same level in sprayed and non-sprayed samples. Since mature seeds showed pigment increases of up to 20% after spraying with CPTA, a late synthesis of lutein is indicated.

scholarly journals Evaluation of vermicompost and chemical fertilizers on performance of Pak choi (Brassica rapa cv. Hong Tae) and soil biological process

2018 ◽  
pp. 243-250
Author(s):  
K. M. Tripathi ◽  
D. D. Dhakal ◽  
S. C. Sah ◽  
D. R. Baral ◽  
M. D. Sharma
Keyword(s):  
Brassica Rapa ◽  
Root Length ◽  
The Other ◽  
Leaf Number ◽  
Microbial Activities ◽  
Chemical Fertilizers ◽  
Pak Choi ◽  
Soil Microbial ◽  
Other Hand ◽  
Four Levels

 A field experiment was conducted to evaluate the effect of vermicompost and chemical fertilizers on the performance of Pak choi (Brassica rapa CV. Hong Tae) in Chitwan Nepal during November 2012 to January 2013. Four levels of vermicompost (0, 5, 10 and 15 t/ha) and four levels of NPK equivalent in the form of inorganic fertilizer (100, 50, 25 and 0% of recommended doses of 100:60:60 Kg/ha) in 16 combinations were assessed for yield, yield contributing parameters of Pak choi and microbial activities of soil. All levels of chemical fertilizers increased plant height, leaf number and chlorophyll content of leaves but they had no effect in increasing root length. Chemical fertilizers at 100:60:60 kg NPK/ha increased biological and economic yield of Pak choi. However, all levels of chemical fertilizers were found strongly suppressing in soil microbial activities. Vermicompost on the other hand increased root length, leaf number, biological and economic yield and more significantly increased soil microbial activities resulting in increased level of soil respiration. Chemical fertilizers were effective in increasing plant growth but suppressed microbial activities of soil. Vermicompost on the other hand was effective in long run through slow release of plant nutrients and improving soil health by increased soil microbial activities.Journal of the Institute of Agriculture and Animal Science. Vol. 33-34, 2015, page: 243-250

Long-term application of olive-mill wastewater affects soil chemical and microbial properties

Soil Research ◽  
2015 ◽  
Vol 53 (4) ◽  
pp. 461 ◽  
Author(s):  
V. Kavvadias ◽  
M. Doula ◽  
M. Papadopoulou ◽  
Sid. Theocharopoulos
Keyword(s):  
Waste Disposal ◽  
Chemical Properties ◽  
Olive Mill Wastewater ◽  
Soil Chemical Properties ◽  
Microbial Properties ◽  
Evaporation Ponds ◽  
Soil Microbial ◽  
The Impact ◽  
Olive Mill

Disposal of untreated olive-mill wastewater (OMW) is a major environmental problem in many Mediterranean countries. This study assessed the impact of OMW application on soil microbiological properties and explored the relationship to soil chemical properties during a 9-month, periodical soil-sampling campaign in a pilot study area in Crete, South Greece. Cases studied involved: direct application of OMW on soil; OMW disposal in active evaporation ponds; sites hosting evaporation ponds that have been inactive for the past 9 years; sites downstream of active evaporation ponds; and control soils, upstream of the waste-disposal ponds. Long-term OMW disposal on land affected the main soil chemical properties. Applicability of the results from the systematic monitoring was confirmed by results obtained in other OMW disposal sites around the pilot area. Soil microbial properties (microbial activity, microbial biomass carbon, and metabolic quotient) were considerably affected by OMW disposal. Moreover, seasonal changes of soil properties revealed short- and long-term residual effects due to OMW disposal. Significant correlations were observed among soil microbial characteristics and soil chemical properties, clearly indicating a close relationship between chemical properties and the transformation of microbial communities in soil after OMW land spreading. The determination of a key set of chemical and microbiological parameters that can be used as indicators for monitoring soil quality at olive-mill waste-disposal areas will verify the efficiency of the techniques used for the land disposal of OMW and will consequently promote their sustainable management.

Response of Soil Microbial Community to a High Dose of Fresh Olive Mill Wastewater

Pedosphere ◽  
2013 ◽  
Vol 23 (3) ◽  
pp. 281-289 ◽  
Author(s):  
J.L. MORENO ◽  
F. BASTIDA ◽  
M.A. SÁNCHEZ-MONEDERO ◽  
T. HERNÁNDEZ ◽  
C. GARCÍA
Keyword(s):  
Microbial Community ◽  
Soil Microbial Community ◽  
Olive Mill Wastewater ◽  
High Dose ◽  
Soil Microbial ◽  
Olive Mill

scholarly journals Anaerobic digestion of olive mill wastewater

2013 ◽  
Vol 11 (3) ◽  
pp. 364-372
Keyword(s):  
Anaerobic Digestion ◽  
White Rot Fungi ◽  
Olive Mill Wastewater ◽  
The Other ◽  
White Rot ◽  
White Rot Fungus ◽  
Stable Operation ◽  
The Stability ◽  
Solids Removal ◽  
Olive Mill

Anaerobic digestion of olive-mill wastewater (OMW) was carried out in a continuously fed mode bioreactor. The bioreactor was operated at different hydraulic retention times (HRTs), using OMW, either raw or pre-treated with white-rot fungi. Two different kinds of feed were tested in this process, one which was thermally treated and subjected to sedimentation, in order to remove the solids contained and the other without any physicochemical treatment (raw OMW). Thermally pretreated OMW did not allow a stable operation even at an HRT of 30d. Further pretreatment of the OMW with a white-rot fungus for removal of the contained phenolics, allowed a stable operation at an HRT of 30 d. On the other hand, simple dilution of the raw wastewater, without any solids removal, lead to a stable operation at an HRT of 30d and was accompanied by higher production of biogas. The presence of the solids in the OMW proved to be a determining factor for the stability of the process and could be attributed to a possible adsorption on the solids of hydrophobic compounds, such as long-chain fatty acids that are toxic to methanogens.

scholarly journals Use of Olive-Mill Wastewater for the Containment of Phelipanche ramosa in Open Field of Processing Tomato Crop

2021 ◽  
Vol 12 (10) ◽  
pp. 304-310
Author(s):  
Francesco Lops ◽  
◽  
Antonia Carlucci ◽  
Laura Frabboni ◽  
Annalisa Tarantino ◽  
...  
Keyword(s):  
Open Field ◽  
Untreated Control ◽  
Olive Mill Wastewater ◽  
Marketable Yield ◽  
Tomato Crop ◽  
Tomato Seedling ◽  
Processing Tomato ◽  
Growing Seasons ◽  
Phelipanche Ramosa ◽  
Olive Mill

Phelipanche ramosa (L.) Pomel is a root holoparasitic weed that infested many crops, particularly the processing tomato. In semi-arid regions of the world, this problem is increasing, both in intensity and in acreages. In the last few years, researches for the control of this parasite has increased its effort to use suitable methods, as well as the utilization of natural compounds. In this regard, four experimental trials were carried out over three growing seasons (2014, 2016 and 2017), at Foggia (Apulia Region, Southern Italy), in the open field, on processing tomato (cv. “Dres”) crop, infested by P. ramosa, where the olive-mill wastewater (OMW) was incorporated into the soil at the dose of 80 m3 ha-1 40 days prior to tomato seedling transplant in comparison with the untreated control. The numbers of P. ramosa emerged shoots (branched plants) were significantly lower in the OMW treatment than in the untreated control. The tomato marketable yield showed a significantly higher value in the OMW treatment than the untreated control. No significant differences for the fruit qualitative characteristics were observed.

Sign in / Sign up

Export Citation Format

Share Document