Differences in quality of potato tubers growing in organic system depending on some agronomical factors

In the year 2006 the experiments concerning potato growing in organic production system in two places on 2 different types of soil and different agronomical conditions were carried out. 8 cultivars of different earliness were taken into account. In experiments following elements were assessed: yield of tubers, external and internal disorders, chemical composition of tubers. It was found that the yield as well as its quality depended not only on the production system but also on climatic-soil and agronomical conditions. On better soil and better crop rotation the yield was over twice more than on worse one. More external disorders was found on better soil. In that conditions there was significant higher dry matter and starch content. It was not significant differences in vitamin C. In this year dangerous phenomena were observed: very early and early cultivars grown on good soil collected high amount of nitrates. The reason was probably unfavorable weather conditions and very rich crop rotation.

REFERENCES (13)

Dlouhy J.: Alternative forms of farming - quality of product in conventional and biodynamic production. Upsala, Inst. For vaxtodinng. Raport 91, 1981, SLU.

Google Scholar

Dlouhy J.: Product quality in alternative agriculture. In: Food quality Concepts and Methodology. Elm Farm Resaerch Centre, Newbury, 1992, UK: 30-35.

Google Scholar

Gransedt A., Kjellenberg L., Roinila P.: Long term field experiment in Sweden: Effects of organie and inorganic fertilizers on soil fertility and crop quality. In: Proc. Of the nf Conf. on Agric. Production and Nutrition. Boston, MA, USA, March 1997: 79-90.

Google Scholar

Kuś J., Stalenga J.: Plonowanie kilku odmian ziemniaka uprawianych w systemach integrowanym i ekologicznym. Roczniki Akademii Rolniczej w Poznaniu, 1998, CCCVII: 126-131.

Google Scholar

Mazurczyk W., Lis B.: Zawartość azotanów i glikoalkaloidów w dojrzałych bulwach ziemniaka jadalnego. Roczn. PZH 2000, 51: 37-41.

Google Scholar

Petr J., Dlouhy J.: Ekologickie zemnledelstvi, Brazda, Praha, Zemledelske Nakladatelstvi 1992: 276-282.

Google Scholar

Rembiałkowska E.: Zdrowotna i sensoryczna jakość ziemniaków oraz wybranych warzyw z gospodarstw ekologicznych. Fundacja Rozwój SGGW, Warszawa, 2000.

Google Scholar

Rembiałkowska E.: Wpływ ekologicznej metody uprawy na zawartość azotanów i azotynów w ziemniakach i wybranych warzywach. Roczn. AR w Poznaniu 2002, 31(1): 429-433.

Google Scholar

Rutkowska B.: Porównanie wartości odżywczej, sensorycznej i przechowalniczej ziemniaków uprawianych w gospodarstwach ekologicznych i konwencjonalnych. Praca doktorska wykonana w Zakładzie Dietetyki SGGW, Warszawa.

Google Scholar

10.

Sawicka B., Kuś J.: Zmienność składu chemicznego bulw ziemniaka w warunkach ekologicznego i integrowanego systemu produkcji. Zeszyty. Probl. Post. Nauk Roln. Zeszyt 489, Ziemniak spożywczy i przemysłowy oraz jego przetwarzanie - perspektywy ekologicznej produkcji ziemniaka w Polsce. Warszawa 2002: 273-283.

Google Scholar

11.

Schulc D.G., Kopkę U.: An overall approach to describing food quality: the quality index. In: Contributions to the 4 Scient. Meet on Ecological Agriculture, held on 3-4 March 1997,4:211-216.

Google Scholar

12.

Warman P.R., Harvard K.A.: Yield, vitamin and mineral contents of organically and conventionally grown potatoes and seed corn. Agri. Ecos. and Envir. Vol. 68/3 1998: 207-216.

Google Scholar

13.

Zarzyńska K., Goliszewski W.: Uprawa ziemniaków w systemie ekologicznym - problemy i korzyści. Mat. konf. Perspektywy produkcji i rynku ziemniaków w Polsce, 20-21 X 2005, Kołobrzeg: 37-39.

Google Scholar

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