Evaluation of nutrients supply in apple trees cultivated in Lubelskie Region
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| Authors: | Przemysław Tkaczyk1, Wiesław Bednarek2, Sławomir Dresler3, Jaromir Krzyszczak4 1Regional Agrochemical Station in Lublin, ul. Sławinkowska 5, 20-810 Lublin, Poland 2Department of Agricultural and Environmental Chemistry, University of Life Sciences ul. Akademicka 15, 20-950 Lublin, Poland 3Department of Plant Physiology, Institute of Biology, Maria Curie-Skłodowska University ul. Akademicka 19, 20-033 Lublin, Poland 4Institute of Agrophysics PAS, 20-290 Lublin, ul. Doświadczalna 4, 20-290 Lublin, Poland |
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| Abstract : | An environmental study was performed in the years 2009-2011 to evaluate nutrients supply in apple trees in the Lubelskie Region. Apple tree leaves (cv. Szampion) were sampled from orchards situated in 17 localities, in the first half of August, from the central part of long shoots situated in various parts on the crown circumference, at mid-height, from ten trees chosen at random. The chemical analyses of those leaves were performed at the accredited laboratory of the Regional Chemical-Agricultural Station in Lublin. In the analysed material the following parameters were assayed: dry matter content, total nitrogen content, content of phosphorus, potassium, calcium, magnesium, copper, zinc, manganese, iron and boron. The average content and standard deviation of the macro- (N, P, K, Ca and Mg) and microelements (B, Cu, Zn, Fe, Mn) in the leaves were calculated. Additionally, correlations among those elements and coefficients of determination were calculated. Our evaluation has shown that apple trees cv. Szampion cultivated in the Lubelskie Region were optimally supplied in macro-elements, that is to say nitrogen, phosphorus, potassium, magnesium and calcium. The chemical analyses revealed also that the plants had optimum level of supply for boron. The occurrence of a relatively few (7) significant correlations among the assayed macro- (N, P, K, Mg, Ca) and microelements (B, Cu, Zn, Mn, Fe) was noted. For some of the microelements the values of the calculated coefficients of determination varied from 88.2 to 98.4%. |
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| Keywords : | apple tree, macroelements, microelements, fertilisation | ||||||||
| Language : | English | ||||||||