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 AS  Vol.10 No.3 , March 2019
Difference in the Concentration of Macro Elements between Organically and Conventionally Grown Vegetables
Abstract: Although the quality of organic crops has been intensively studied for over three decades, there is still a lack of conclusive data that can prove the superiority of organic crops over conventional ones. There is no doubt that the organic food is safer due to the lack of pesticide residues; however, it is still not entirely sure whether vegetables and fruits produced in this way are better in the context of nutritional values. The study of commonly used vegetables in the European diet was performed to evaluate the difference in concentration of macro nutrients such as Ca, Mg, Na, N, K and P between organic and conventional crops. Additionally, the soil analysis was performed on the material from two growing systems. The results showed that organically cultivated vegetables had generally a higher level of macro nutrients. Also, soil samples showed higher content of these elements in the organically treated soil. From all vegetables, the highest concentrations of macro elements were found in parsley leaves and celery roots.
Cite this paper: Głodowska, M. and Krawczyk, J. (2019) Difference in the Concentration of Macro Elements between Organically and Conventionally Grown Vegetables. Agricultural Sciences, 10, 267-277. doi: 10.4236/as.2019.103023.
References

[1]   Barański, M., Średnicka-Tober, D., Volakakis, N., Seal, C., Sanderson, R., Stewart, G.B., Benbrook, C., Biavati, B., Markellou, E., Giotis, C., Gromadzka-Ostrowska. J., Rembialkowska, E., Skwarlo-Sońta, K., Tahvonen. R., Janovská, D., Niggli, U., Nicot, P., Leifert, C. and Gromadzka-Ostrowska, J. (2014) Higher Antioxidant and Lower Cadmium Concentrations and Lower Incidence of Pesticide Residues in Organically Grown Crops: A Systematic Literature Review and Meta-Analyses. British Journal of Nutrition, 112, 794-811.
https://doi.org/10.1017/S0007114514001366

[2]   Walorczyk, S., Drozdzyński, D., Kowalska, J., Remlein-Starosta, D., Ziólkowski, A., Przewoźniak, M. and Gnusowski, B. (2013) Pesticide Residues Determination in Polish Organic Crops in 2007-2010 Applying Gas Chromatography-Tandem Quadrupole Mass Spectrometry. Food Chemistry, 139, 482-487.
https://doi.org/10.1016/j.foodchem.2013.01.013

[3]   Gnusowski, B., Nowacka, A., Walorczyk, S., Lozowicka, B. and Szpyrka, E. (2012) Pesticide Residues in Organic Food of Plant Origin in Poland in 2010. Progress in Plant Protection, 52, 127-132.

[4]   Ismal, A. and Fun, C.F. (2003) Determination of Vitamin c, β-Carotene and Riboflavin Contents in Five Green Vegetables Organically and Conventionally Grown. Malaysian Journal of Nutrition, 9, 31-39.

[5]   Williams, C.M. (2002) Nutritional Quality of Organic Food: Shades of Grey or Shades of Green? Proceedings of the Nutrition Society, 61, 19-24.
https://doi.org/10.1079/PNS2001126

[6]   Hansen, H. (1981) Comparison of Chemical Composition and Taste of Biodynamically and Conventionally Grown Vegetables. Plant Food for Human Nutrition, 30, 203-211.
https://doi.org/10.1007/BF01094025

[7]   Sankar, V., Veeraragavathatham, D. and Kannan, M. (2009) Effect of Organic Farming Practices on Post-Harvest Storage Life and Organoleptic Quality of Yellow Onion (Allium cepa). Indian Journal of Agricultural Sciences, 79, 608-614.

[8]   Tinker, P.B. (2001) Organic Farming—Nutrient Management and Productivity. The Intemational Fertilizer Society, Proceedings No. 471, York, UK, 1-24.

[9]   Nowosielski, O. (1988) Principles of Fertilizer Recommendations in Horticulture (pol.). PWRiL, Warsaw.

[10]   Horwitz, W. (1975) Official Methods of Analysis. Association of Official Analytical Chemists, Washington DC, Vol. 222.

[11]   Nowotna-Mieczyńska, A. (1976) Physiology of Mineral Plant Nutrition (pol). PWRiL, Warsaw.

[12]   Stepień, A. and Adamiak, J. (2007) Effect of Fertilization Methods in Crop Rotation on Chemical Characteristics of Soil. Acta Agrophysica, 10, 465-472.

[13]   Mengel, K. and Kirkby, E.A. (1983) Principles of Plant Nutrition (pol.). PWRiL, Warsaw.

[14]   Wójcik, P. (1998) Calcium Nutrition in Higher Plants. Botanical News, 42, 41-52.

[15]   Warman, P.R. and Havard, K.A. (1997) Yield, Vitamin and Mineral Contents of Organically and Conventionally Grown Carrots and Cabbage. Agriculture, Ecosystems and Environment, 61, 155-162.
https://doi.org/10.1016/S0167-8809(96)01110-3

[16]   Michna, W. (2001) A Report on Monitoring the Quality of Soils, Plants, Agricultural Products and Foodstuffs in 2000. The Ministry of Agriculture and Rural Development. Council for Quality Monitoring of Soils, Plants, Agricultural and Food Products, Warsaw.

[17]   Kabata-Pendias, A. and Pendias, H. (1993) Biogeochemistry of Trace Elements (pol). Polish Scientific Publishers PWN, Warsaw.

[18]   Lityński, T. and Jurkowska, H. (1982) Soil Fertility and Plant Nutrition (pol). Polish Scientific Publishers PWN, Warsaw.

[19]   Worthington, V. (2001) Nutritional Quality of Organic Versus Conventional Fruits, Vegetables and Grains. The Journal of Alternative and Complementary Medicine, 7, 161-173.
https://doi.org/10.1089/107555301750164244

[20]   Skowrońska, M. and Filipek, T. (2009) Accumulation of Nitrogen and Phosphorus by Maize as the Result of a Reduction in the Potassium Fertilization Rate. Proceedings of ECOpole, 3, 109-112.

[21]   Colla, G., Mitchell, J.P., Poudel, D.D. and Temple, S.R. (2002) Changes of Tomato Yield and Fruit Elemental Composition in Conventional, Low Input, and Organic Systems. Journal of Sustainable Agriculture, 20, 53-67.
https://doi.org/10.1300/J064v20n02_07

[22]   Lemanowicz, J. and Koper, J. (2009) The Content of Selected Phosphorus Forms in Soil and Redcloverand the Activity of Soil Phosphates in Relation to Differentiated Mineral and Organic Fertilization. Water Environment Rural Areas, 9, 119-139.

 
 
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