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The aim of this research is to determine the insecticide and herbicide residues and their degradation products in Kura irrigation farmland soils. The analyses were carried out during the planting (before harvest) and after the harvesting periods. The insecticide residue analyses were undertaken using Gas chromatography-mass spectrometry (GC/MS) after extraction with a mixture of n-hexane and acetone (1:1) in a soxhlet extractor. The pH levels of the soil samples and the soil organic matter were also determined using standard analytical methods. The acidity and organic matter content of most of the soil samples increased slightly after harvest. The compounds detected as residues include 1-octadecene, 9-heptadecanone, (E)-3-eicosene, (Z)-5-nonadecene, heptadecane, 1-docosene, 1-nonadecene and 1-eicosene. Out of these residues, 1-octadecene and (E)-3-eicosene were detected during planting and after the harvesting periods, showing that they are the most persistent of the residues in the soil samples. The residues detected before harvest were totally different from the residues detected after harvest. This shows that the pesticides, after some time, degraded in the soil into completely different compounds and the total residues were detected in high percentages.
Ademola A. The leading contributing sectors to GDP in 2019. National Btatistics (NBS), Business Day Research & Intelligence Unit (BRIU); 2020.
Awotide BA, Ahou D, Omonona BT. Impact of improved agricultural technology adoption on sustainable rice productivity and rural farmers. Welfare in Nigeria: A Local Average Treatment Effect Technique. 2012;2.
Minde I, Jayne TS, Crawford E, Ariga J, Govereh J. Promoting fertilizer use in africa: current issues and empirical evidence from Malawi, Zambia and Kenya. ReSAKSS Working Paper. 2008; 13.
Maton SM, Dodo JD, Nesla RA, Ali A. Environmental impact of pesticide usage on farmlands in Nigeria. International Journal of Innovative Research and Development. 2016;5(4):311-317.
Dugje IY, Ekeleme F, Kamara AY, Omogui LO, Tegbaru A, Teli IA, Onyibe JE. Guide to safe and effective use of pesticides for crop production in Borno State, Nigeria. International Institute of Tropical Agriculture (IITA) and Canadian International Development Agency (CIDA). 2008;2-23.
Mardiana IA, Nur AA, Syahidah AM, Norizan E. A survey on use, hazards and potential risks of rice farming pesticides in Permatan Keriang, Palau Pinang (Malaysia). International Journal of Scientific and Research Publications. 2014;4(10):1.
Shondhia S. Herbicide residues in soil, water, plants and non-targeted organisms and human health implications: An Indian perspective. Indian Journal of Weed Science. 2014;46(1):66-85.
Mahmood I, Sameed RI, Kanwal S, Alvina G, Khalid RH. Effects of pesticides on environment. Springer International Publishing Switzerland. 2016;254.
Food Standards Agency (FSA). What are Pesticides? 2010;03. Available:www.food.gov.uk/.../pesticidemainqa/pesticidesqaq
Wasim MA, Dwaipayan S, Ashim A. Impact of Pesticides use in Agriculture: Their Benefits and Hazards. Interdisc. Toxicol. 2009;2(1):1-8.
Shondhia S. Phytotoxicity and persistence of metribuzin residues in black soil. Toxicological and Environmental Chemistry. 2005;87:387-389.
Coronado GD, Thompson B, Strong L, Griffith WC, Islas I. Agricultural task and exposure to organophosphate pesticides among farm workers. Environ. Health 18 Persp. 2004;112:142-147.
Konradsen F, Van der Hoek W, Cole DC, Hutchinson G, Daisley H, Singh EM. Reducing acute poisoning in developing countries- Options for restricting the availability of pesticides. Toxicology. 2003; 192:249-261.
Henrik A, Damian T, Nicolas T. Pesticides and health: A review of evidence on health effects valuation of risks and benefit-cost analysis. Toulouse School of Economics; 2014.
Bawa S, Abba B, Umar MI, Tafida SY, Abubakar SU, Kumangh N, Jatau P, Madubu D. A review of pesticide poisoning: Far reaching implications and the need for synergistic policy implementation in gombe, North-eastern Nigeria. International Journal of Life Sciences. 2016;5(2):63-67.
Yunusa H, Hassan Z, Deepika V. Preserving or poisoning: A case of dried beans from Nigeria. International Journal of Management, Technology and Engineering. 2019;1-13. ISSN No: 2249-7455.
Nelly B. Nigeria: Food poisonings a grim reminder to store beans and grains safely (various Nigerian newspapers, un integrated regional information networks, un Food and Agriculture Organization). African Farm News in Review. 2008;22.
BBC News, Nigeria mystery deaths: Pesticide suspected says WHO; 2015. Available:www.bbc.com/news/world-africa-32372502
Adelodun B, Choi K. A review of the evaluation of irrigation practice in Nigeria: past, present and future prospects. African Journal of Agricultural Research. 2018; 13(40):2087-2097. ISSN: 1991-637X.
Wallace T. The kano river project, Nigeria: The impact of an irrigation scheme on productivity and welfare. In: Heyer J, Roberts P, Williams G. (eds). Rural development in tropical Africa. Palgrave Macmillan, London; 1981.
Midwest Laboratories; 2017. Available:www.agrienergy.net/docs/lab-information/soil-sampling.pdf [Accessed, 2017;13, 2020].
Campos MM, Campos CR. Applications of quartering methods in soils and foods. International Journal of Engineering Research and Application. 2017;7(1)(Pt 2): 35-39.
Hladik L, McWayne M. Methods of analysis-determination of pesticides in sediment using gas chromatography/mass spectrometry; 2012.
Motsara MR, Roy RN. Guide to laboratory establishment for plant nutrient analysis. FAO Fertilizer and Plant Nutrition Bulletin. 2008;19(3):32-33. ISBN: 978-92-5-105981-4.
Adrás S, Mörtl M, Darvas B. Monitoring pesticide residues in surface and ground water in Hungary: Surveys in 1990-2015. Journal of Chemistry. Hindawi Publishing Corporation. 2015;10.
Faissal A, Ouazzani N, Parrado JR, Dary M, Manyani H, Morgado BR, Barragán MD, Mandi L. Impact of fertilization by natural manure on the microbial quality of soil: molecular approach. Saudi Journal of Biological Sciences. 2017;24(6):1437-1443.
Zhen Z, Haitao L, Na W, Liyue G, Jie M, Na D, Guanglei W, Gaoming J. Effects of manure compost application on soil microbial community diversity and soil microenvironments in a temperate cropland China. Plos One. 2014;9(10):1-12.
Sarmah AK, Close ME, Mason NWH. Dissipation and sorption of six commonly used pesticides in two contrasting soils of New Zealand. Journal of Environmental Science and Health. 2009;44:4325-33.
Adreu V, Pico. Determination of pesticides and their degradation products in soil: Critical review and comparison of methods. Trends Analytical Chemistry. 2004;23(10-11):772-789.
Food and Agriculture Organisation (FAO). FAOSTAT; 2018. Available:http://faosata.fao.org/default.html [Accessed, Apr. 3, 2020].
Alexandra B, José B. The importance of soil organic matter: Key to drought-resistant soil and sustained food production. FAO Soils Bulletin. 2005; 4(80):15-33. ISBN: 92-5-105366-9.
Kumar PS, Duraipandiyan V, Ignacimuthu S. Isolation, screening and partial purification of antimicrobial antibiotics from soil Streptomyces sp. SCA 7”. The Kaohsiung Journal of Medical Sciences. 2014;30(9):435-446.
Siddiquee S, Khanam T, Cheong BE, Hossain K. Separation and identification of volatile compounds from liquid cultures of Trichoderma harzianum by GC-MS using 3 different capillary columns. Journal of Chromatographic Science; 2014.
SIDS Initial Assessment Report, “higher olefins”. UNEP Publications, Berlin, Germany; 2014.