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572-577 I. Bender, M. Ess, D. Matt, U. Moor, T. Tõnutare and A. Luik
Quality of organic and conventional carrots
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Quality of organic and conventional carrots

I. Bender¹, M. Ess¹, D. Matt², U. Moor², T. Tõnutare² and A. Luik²

¹Jõgeva Plant Breeding Institute, Aamisepa 1, 48309 Jõgeva alevik, Estonia;e-mail: Ingrid.Bender@jpbi.ee
²Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences,Kreutzwaldi 64, 51014 Tartu, Estonia


At Jõgeva Plant Breeding Institute, cultivation of the Estonian carrot variety ‘Jõgeva Nantes’ conventionally (with application of mineral fertilizers: N 115, P 40 and K 152 kg ha-1 and pesticides: Fenix, Actara 25 WG, Agil and Signum) and organically (compost, Humistar, agryl cover) was compared. Marketable yield of organic carrots was 11% higher than that of conventionally grown carrots. Conventional carrots contained pesticide residues and had significantly higher nitrate concentration than organic carrots. Contents of dry matter, total sugars, soluble solids, phosphorus, potassium, calcium and magnesium did not significantly differ between carrots between cultivation systems. The contents of ß-carotene, vitamin C and nitrogen were significantly lower in organically grown than in conventionally grown carrot. Key words: agryl cover, ß-carotene, calcium, dry matter, magnesium, nitrogen, phosphorus, potassium, soluble solids, total antioxidant capacity, total sugars, vitamin C, yieldINTRODUCTION

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