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Abstract

In two field experiments, the effect of some weed control treatments (citric acid at the rate of 10, 15 and 20%, acetic acid at the rate of 20, 30 and 40%, oxadiargyl, oxyflurfen, rice straw mulch, hand hoeing and an unweeded check control treatment) on weed growth and onion productivity in sandy soils at the Agricultural Experimental Station of the National Research Centre, Egypt was studied. The results indicated that all weeded treatments reduced the dry weight of broadleaf, grassy and total weeds as compared with the weedy check. Oxadiargyl, followed by two hand hoeing, rice straw mulch and acetic acid 40% recorded the greatest weed control efficiency. Insignificant differences were noticed between these treatments. Applying rice straw mulch increased bulb length, bulb diameter, bulb weight and onion yield by 67.52, 57.55, 45.74 and 66.22% over the weedy check, respectively. The highest values of N, P and K were obtained from rice straw mulch treatment followed by hand hoeing, oxadiargyl and acetic acid 40% treatments. It may be concluded that farmers can certainly depend on mulching or acetic acid at 40% instead of using chemical herbicides especially in organic farm systems for controlling onion weeds.

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Authors and Affiliations

Ibrahim El-Metwally
Shehata Shalaby
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Abstract

Two field experiments were established at the Agricultural Experimental Station of the National Research Centre at Nubaria, Beheira Governorate, Egypt to study the herbicidal potential of the leaf extract of Eucalyptus citriodora at 5, 10, 15, 20 and 25% compared to two hand hoeing, unweeded treatments and the chemical herbicides Bentazon + Clethodium, Bentazon + Fluazifop-P-butyl and Butralin on pea plants and associated weeds. The results indicated that two hand hoeing achieved the maximum weed depression as expressed by the dry matter of total weeds. The dry matter of total weeds decreased by 95.08 to 94.77% as compared with unweeded treatment 50 and 70 days after sowing (DAS) followed by Butraline (93.93–94.65%), Bentazon + Clethodium (93.26–94.07%), Bentazon + Fluazifop--P-butyl (91.82–92.77%) and leaf extract of Eucalyptus at 25% (91.61–91.95%). Furthermore, the reduction in weed development was accompanied by enhanced pea growth and yield. The results revealed that two hand hoeing was the best treatment to increase plant height, shoot dry weight and SPAD value at 50 and 70 DAS. Also, two hand hoeing produced the maximum values of pod length and number of seeds/pod. The results also indicated that Bentazon + Clethodium treatment gave observable values [recorded 72.96% in pod yield (ton ⋅ fed.–1) over that of unweeded control] of number of pod/plant, weight of pod/plant, seed yield/fed and protein percentage. Also, the results revealed great increases in the growth of pea as well as yield due to treatment with E. citriodora dry leaf extract at 25%. [recorded 64.8% in in pod yield (ton ⋅ fed.–1) over that of unweeded control]. So, the results indicated using Bentazon + Clethodium as well as E. citriodora dry leaf extract at 25% to control weeds associated with pea plants. The authors suggested application of E. citriodora dry leaf extract at 25% in controlling weeds associated with pea plants as a safe method that avoids environmental contamination.

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Authors and Affiliations

Ibrahim Mohamed El-Metwally
Kowthar Gad El-Rokiek
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Abstract

It has already been well established that long exposure to low doses of pesticidesis linked to consumer risks. So, this study purposed to investigate the amounts of pesticide residues and potential health risks associated with them. The risk assessment was determined by two methods: 1. Pesticide toxicity index (PTI) depending on the maximum residue limit (MRL) to calculate the hazard quotient (HQ); 2. Health risk assessment (HR) using acceptable daily intake (ADI) and estimated daily intake (EDI) to calculate the health index (HI). Pesticide residues were estimated in 176samples of the most popularly consumed vegetables collected from major retailers and markets in Dakahlia, Egypt (during 2018). There were 111 samples contaminated with pesticide residues (63.1%), of which 29 samples (16.48%) were higher than the maximum residue limits (MRL).Residues of 23 compounds were found in the analyzed samples, of which chlorpyrifos was the most frequentin 33 samples (18.75%);while cypermethrin was the lowest (detected in one sample). According to WHO toxicity classification, 12 of the detected pesticides were moderately hazardous (class II), seven pesticides belonged to class III (slightly hazardous), three compounds were found in class U (unlikely to pose an acute hazard with normal use), while carbofuran is a highly toxic compound (class Ib). Also, the obtained data revealed that, the HI’s for the individual pesticides ranged from 0.0018 to 64.0% of ADI indicates no risk of adverse effects following exposure to the individual pesticides. The cumulative exposure amounts (PTI values) ranged from 1.58 in snake cucumber to 128.44 in potato tubers, indicating that, the combined risk index of pesticide residues was a significant health risk for consumers according to the individual risk index.It can be concluded that there is a need for strict regulation and regular monitoring of pesticide residues in foodstuff for consumers’ health protection.
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Bibliography


Akoto O., Azuure A.A., Adotey K.D. 2016. Pesticide residues in water, sediment and fish from Tono Reservoir and their health risk implications. SpringerPlus 5: 1849. DOI: https://doi.org/10.1186/s40064-016-3544-z
Bajwa U., Sandhu K.S. 2014. Effect of handling and processing on pesticide residues in food – A review. Journal of Food Science and Technology 51: 201–220. DOI: https://doi.org/10.1007/s13197-011-0499-5
Belden J.B., Gilliom R.J., Martin J.D., Lydy M.J. 2007. Relative toxicity and occurrence patterns of pesticide mixtures in streams draining agricultural watersheds dominated by corn and soybean production. Integrated Environmental Assessment and Management 2007 (3): 90–100.
Chaikasem S., Roi-et Na. V. 2020. Health risk assessment of pesticide residues in vegetables from river basin area. Applied Environmental Research 42 (2): 46–61. DOI: https://doi.org/10.35762/AER.2020.42.2.4
Claeys W.L., Jean-Francois S., Bragard C., Maghuin-Rogister G., Luc P., Schiffers B. 2011. Exposure of several Belgianconsumer groups to pesticide residues through fresh fruitand vegetable consumption. Food Control 22 (3–4): 508–516. DOI: https://doi.org/10.1016/j.foodcont.2010.09.037
CAC. 1993.Codex Alimentarius Commission. Joint FAO/WHO Food Standards Program, Volume 2, 391 pp.
Dragus A., Beldean-Galea M.S., Mihaiescu R., Mihaiescu T., Ristoiu R. 2012. Assessing impacts of triazine pesticides usein agriculture over the well water quality. Environmental Engineering and Management Journal 11: 319–323.
EU. 2016. The 2016 European Union report on pesticide residues in food. Scientific report. EFSA Journal 2018. DOI: https://doi.org/10.2903/j.efsa.2018.5348
EU. 2020. European Commission (EU): EU Pesticide Database (Online) Available from: https://ec.europa.eu/food/plant/pesticides/eu-pesticides-database/public/? Event =pesticide residue. Current MRL& language = EN&pestResidueId =56 [Accessed 15 Agust 2020].
Fantke P., Gillespie B.W., Juraske R., Jolliet O. 2014. Estimating half-lives for pesticide dissipation from plants. Environmental Science and Technology 48: 8588–8602. DOI: https://doi.org/10.1021/es500434p
Fantke P., Juraske R. 2013. Variability of pesticide dissipation half-lives in plants. Environmental Science and Technology 47: 3548–3562. DOI: https://doi.org/10.1021/es303525x
Gad Alla S.A., Thabet W.M., Salama E.Y. 2013. Monitoring and risk assessment of pesticide residues in some egyptian vegetables. Middle East Journal of Applied Sciences 3 (4): 216–230.
Goumenou M., Tsatsakis A. 2019. Proposing new approaches for the risk characterization of single chemicals and chemical mixture: The source related Hazard Quotient (HQs) and Hazard Index (HIs) and the adversity specific Hazard Index (HIA). Toxicology Reports 6: 632–636. DOI: https://doi.org/10.1016/j.toxrep.2019.06.010
Hossain M.S., Fakhruddin A.N.M., Alamgir Zaman Chowdhury M., Rahman, M.A., Khorshed Alam M. 2015. Health risk assessment of selected pesticide residues in locally produced vegetables of Bangladesh. International Food Research Journal 22 (1): 110–115.
Ibrahim N.M., Eweis E.A., El-Sawi S.AM., Nassar K.R.A. 2018. Monitoring and risk assessment of pesticide residues in some vegetables in Egypt. Middle East Journal of Applied Sciences 8 (2): 669–679.
ILNAS-EN 15662:2018. Foods and plant origin – Multimethod for the determination of pesticide residues using GC- and LC- based analysis following acetonitrile extraction/partitioning and clean-up by dispersive SPE–Modular QuEChERS method. European Committee for Standardization, Brussels.
Kalliora C., Mamoulakis C., Vasilopoulos E., Stamatiades G.A., Kalafati L., Barouni R., Karakousi T., Abdollahi M., Tsatsakis A. 2018. Association of pesticide exposure with human congenital abnormalities. Toxicology and Applied Pharmacology 346: 58–75. DOI: https://doi.org/10.1016/j.taap.2018.03.025
Khan N., Yaqub G., Hafeez T., Tariq M. 2020. Assessment of health risk due to pesticide residues in fruits, vegetables, soil and water. Journal of Chemistry 2020: 1–7. DOI: https://doi.org/10.1155/2020/5497952
Lehotay S.J., Koka Hiemstra M., Bodegraven P. 2005. Validation of a fast and easy method for the determination of residues from 229 pesticides in fruits and vegetables using gas and liquid chromatography and mass spectrometric detection. Journal of AOAC International 88: 595–614.
Mac Loughlin T.M., Leticia Peluso M., Agustina Etchegoyen M., Alonso L.L., Cecilia de Castro M., Cecilia Percudani M., Marino D.J.G. 2018. Pesticide residues in fruits and vegetables of the argentine domestic market: Occurrence and quality. Food Control 2018 (93): 129–138. DOI: https://doi.org/10.1016/j.foodcont.2018.05.041
Malhat F., Kasiotis K.M., Shalaby Sh.E.M. 2018. Magnitude of cyantraniliprole residues in tomato following open field application: A prelude to risk assessment. Environmental Monitoring and Assessment 190: 116. DOI: https://doi.org/10.1007/s10661-018-6496-7
Munn M.D., Gilliom R.J., Moran P.W., Nowell L.H. 2006. Pesticide Toxicity Index for Freshwater Aquatic Organisms. 2nd ed., Scientific Investigations Report 2006-5148. Reston, VA. 2006. [Available on: https://pubs.usgs.gov/sir/ 2006/5148/sir_2006-5148].
Pathak M.K., Fareed M., Srivastava A.K., Pangtey B.S., Bihari V., Kuddus M., Kesavachandran C. 2013. Seasonal variations in cholinesterase activity, nerve conduction velocity and lung function among sprayers exposed to misture of pesticides. Environmental Science and Pollution Research 20: 7296–7300. DOI: https://doi.org/10.1007/s11356-013-1743-5
Ramadan M.F.A., Abdel-Hamid M.M.A., Altorgoman M.M.F., AlGaramah H.A., Alawi M.A., Shati A.A., Shweeta H.A., Awwad N.S. 2020. Evaluation of pesticide residues in vegetables from Asir Region, Saudi Arabia. Molecules 2020 (25): 205.
Seo Y., Cho T., Hong C., Kim M., Cho S., Park W., Hwang I., Kim M. 2013. Monitoring and risk assessment of pesticide residues in commercially dried vegetables. Preventiv Nutrition and Food Science 18 (2): 145–149. DOI: https://doi.org/10.3746/pnf.2013.18.2.145
Shalaby Sh. E.M., Abdou G.Y. 2020. Assessment of pesticide residues in blood samples of agricultural workers in Egypt. Journal pf Plant Protection Research 60 (4): 369–376. DOI: https://doi.org/10.24425/jppr.2020.134912
Shalaby Sh.E.M., Abdou G.Y. 2010. The influence of soil microorganisms and bio- or organic rertilizers on dissipation of some pesticides in soil and potato tubers. Journal of Plant Protection Research 50 (1): 86–92. DOI: https://doi.org/10.2478/v10045-010-0015-3
Shalaby Sh. EM., El-Saadany S., Abo-Eyta A., Abdel-Satar A., Al-Afify A., Abd El-Gleel W. 2018. Levels of pesticide residues in water, soil sediment and fish samples collected from Nile River in Cairo, Egypt. Environmental Forensics 19 (4): 228–238. DOI: https://doi.org/10.1080/15275922.2018.1519735
Silipunyo T., Hongsibsong S., Phalaraksh C., Laoyang S., Kerdnoi T., Patarasiriwong V., Prepamontol T. 2017. Determination of organophosphorus pesticide residues in fruits, vegetables and health risk assessment among consumers in Chiang Mai Province, Northern Thailand. Research Journal of Environmental Toxicology 11: 20–27. DOI: https://doi.org/10.3923/rjet.2017.20.27
Tsatsakis A., Kouretas D., Tzatzarakis M., Stivaktakis P., Tsarouhas K., Golokhvast K., Rakitskii V., Tutelyan V., Hernandez A., Rezaee R. 2017. Simulating real-life exposures to uncover possible risks to human health: a proposed consensus for a novel methodological approach. Human and Experimental Toxicology 36: 554–564. DOI: https://doi.org/10.1177/0960327116681652
USEPA 1998. United States Environmental Protection Agency, Guidelines for Ecological Risk Assessment. EPA/630/R-95/002FApril 1998. Washington DC.
Walpole S.C., Prieto-Merino D., Edwards P., Cleland J., Stevens G., Roberts I. 2012. The weight of nations: an estimation of adult human biomass. BMC Public Health 12: 439. DOI: http://dx.doi.org/10.1186/1471-2458-12-439
WHO. 2003. World Health Organization. Diet, nutrition and prevention of chronic diseases. Report of a Joint FAO/WHO Expert Consultation, Geneva (WHO Technical Report Series No. 916).
WHO. 2009. GEMS/food regional diets. Regional per capita consumption of raw and semi-processed agricultural commodities. [Available on: Internet: http://www.who.int/foodsafety/publications/chem/regional_diets/en/] [Accessed: 12 November 2019].
WHO. 2019. World Health Organization. The WHO Recommended Classification of Pesticides by Hazard and Guideline to Classification 2019, p 6.
WHO/GEMS/FOODS. 2006. GEMS/food regional diets (regional per capita consumption of raw and semi-processed agricultural commodities). [Available on: http://www.who.int/foodsafety/publications/chem/regional_diets/en/].
Wiles R., Davies K., Campbell C. 1998. Over exposed organophosphate insecticides in children's food. Environmental Working Group, Washington. [Available on: https://www.ewg.org/research/overexposed-organophosphate-insecticides-childrens-food].
Wołejko E., Łozowicka B., Kaczyński P. 2014. Pesticide residues in berries and juices and potential risk for consumers. Desalination Water Treatment 52: 3804–3818. DOI: https://doi.org/10.1080/19443994.2014.883793
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Authors and Affiliations

Shehata E.M. Shalaby
1
ORCID: ORCID
Gehan Y. Abdou
1
Ibrahim M. El-Metwally
2
Gomaa M.A. Abou-elella
1

  1. Pests and Plant Protection Department, National Research Centre, Dokki, Cairo, Egypt
  2. Botany Department, National Research Centre, Dokki, Cairo, Egypt

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