Abstrakt
Nitrogen and calcium are the two elements, among other main nutrients, responsible for proper nutrition of plants. The experiments conducted with lettuce of the
Omega F1 variety aimed at an analysis of differentiated methods of nitrogen and calcium carbonate fertilization on the general crop yield and its biological value. After the plants were collected, the fresh weight of the plants, the dry mass, the vitamin C content, extract and protein contents were measured. After the vegetation period of plants samples of medium were collected and, with use of 0.03 M extract of acetic acid, the contents of mineral nitrogen, phosphorus, calcium and magnesium were determined, as well as the pH and EC values of the medium measured. The crop yield of fresh leaves mass was significantly dependent
on the used dose of nitrogen and calcium carbonate. The largest lettuce crop yield was recorded in objects fertilized with 0.4 g · dm-3 of nitrogen and the higher dose of calcium carbonate (283 g·plant-1). The vitamin C, extract and protein contents were dependent on the dose of nitrogen. The largest quantity of vitamin C characterized the lettuce plants fertilized with the largest dose of nitrogen and the higher dose of calcium carbonate (33.7 mg·100 g-1 fr. m.). The application of calcium carbonate in 14 g · dm-3 causes the calcium content of the medium to rise. The EC value of the medium was largely arisen under the influence of the mineral nitrogen and varied between 1.33 and 1.96 mS·cm-1.
Bibliografia
Adamczewska-Sowińska K., Uklańska C.M., 2010. The effect of form and dose of nitrogen fertilizer on yielding and biological value of endive. Acta Sci. Pol., Hortorum Cultus 9(2), 85–91.
Biesiada A., Kołota E., 2010. The effect of nitrogen fertilization on yielding and chemical composition of radicchio chicory for autumn – harvest cultivation. Acta Sci. Pol., Hortorum Cultus 9(4), 85–91.
Dzida K., 2004. Wpływ nawożenia azotowo-potasowego na plonowanie buraka liściowego (Beta vulgaris var. cicla) i zawartość składników w podłożu. Rocz. AR Pozn., Ogrodnictwo 37, 55–60.
Fallovo C., Rouphael Y., Rea E., Battistelli A., Colla G., 2009. Nutrient solution concentration and growing season affect yield and quality of Lactuca sativa L. var. acephala in floating raft culture. J. Scien. Food Agriculture 89, 1682–1689.
Hartz T.K., Johnstone P.R., Smith R.F., Cahn M.D., 2007. Soil calcium status unrelated to tipburn of romaine lettuce. Hort. Sci., 42 (7), 1681–1684.
Kader A.A., 2008. Flavor quality of fruits and vegetables. J. Scien. Food Agriculture 88, 1863–1868.
Kołota E., Czerniak K., 2010. The effects of nitrogen fertilization on yield and nutritional value of swiss chard. Acta Sci. Pol., Hortorum Cultus 9(2), 31–37.
Koudela M., Petříková K., 2008. Nutrients content and yield in selected cultivars of leaf lettuce (Lactuca sativa L. var. crispa). Hort. Sci. (Prague) 35(3), 99–106.
Li Y., Wang T., Li J., Ao Y., 2010. Effect of phosphorus on celery growth and nutrient uptake under different calcium and magnesium levels in substrate culture. Hort Sci.(Prague) 37, 99–108.
Michałek W., Rukasz I., 1998. Wpływ żywienia azotowego i wybranych regulatorów wzrostu na zawartość chlorofilu i fenoli w liściach sałaty. Zesz. Nauk. AR im. H. Kołłątaja Kraków 57(333), 213–217.
Nicolle C., Carnat A., Fraisse D., Lamaison J.L., Rock E., Michel H., Amouroux P., Remesy Ch., 2004. Characterization and variation of antioxidant micronutrients in lettuce (Lactuca sativa folium). J. Sci. Food Agric. 84, 2061–2069.
Nurzyńska-Wierdak R., 2009. Growth and yield of garden rocket (Eruca sativa Mill.) affected by nitrogen and potassium fertilization. Acta Sci. Pol., Hortorum Cultus 8(4), 23–33.
Nurzyński J., 2008. Nawożenie roślin ogrodniczych. WUP, Lublin.
Nurzyński J., Dzida K., Nowak L., 2009. Plonowanie i skład chemiczny sałaty w zależności od nawożenia azotowego i wapnowania. Acta Agrophysica 14(3), 683–689.
Olfati J.A., Saadatian M., Peyvast Gh., Malakouti S.H., Kiani A., Poor-Abdollah M., 2011. Effect of Harvesting Date on Yield and Quality of Lettuce. Adv. Environ. Biol. 5(7), 1647–1650.
Patil R.B., Vora S.R., Pillai M.M., Pawar B.K.A., 2005. Antioxidant effect of Lactuca sativa in the testis and epididymis of aging mice. Indian J. Gerontol. 19(3), 243–254.
PN-A-04019, 1998. Oznaczanie zawartości witaminy C. Polski Komitet Normalizacyjny.
Stępkowska I., 2004. Porównanie działania leczniczego Lactuca sp. (L) (Asteraceae) na podstawie medycyny dawnej, ludowej i współczesnej. Post Fitoter 4: 173–177.
Tzortzakis N.G., 2010. Potassium and calcium enrichment alleviate salinity-induced stress in hydroponically grown endives. Hort. Sci. (Prague) 37, 155–162.
Venter F., 1983. Der Nitratgehalt in Chinakohl (Brassica pekinensis (Lour.) Rupr.). Gartenbauwiss 48(1), 9–12.
Wasilewska I., 1999. Uprawa sałaty w polu i pod osłonami. Hortpress, Warszawa.
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