Search results for: W. Sady
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The practice of simultaneous biofortification (enrichment) of plants with iodine (I) and selenium (Se) is based on solid grounds. Their low content in soils is the cause of an endemic deficiency of I and Se in several billion people worldwide. There is still no objective information as to the impact of I and Se interactions on mineral nutrition of plants. The study (conducted in 2012–2014), included...
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Iodine and selenium together fulfill important functional roles in organisms of humans and animals. Conducting simultaneous biofortification (enrichment) of plants with these elements is justified as combined endemic deficiency of I and Se (hiddenhun-ger) is often encountered. Relatively little is known about the interaction between I and Se in plants, not only with respect to their accumulative efficiency,...
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Journal of Elementology > 2012 > 17 > 1
Simultaneous application of nitrification inhibitors and nitrogen fertilizers (containing reduced forms of nitrogen (ammonium and urea) can increase soil acidification caused by these fertilizers. As a result, it can lower soil reaction (pH) and influence the content of available forms of heavy metals and trace elements. The aim of the study was to evaluate the effect of the application of: ENTEC-26...
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In this study we hypothesized that the effect of nitrogen form well as light intensity on Ca content in the sweet pepper fruit may depend on stage of fruit maturity. Thus the effect of nitrogen form (100% N-NO3 or 50% N-NO3 + 13% N-NH4 + 37% N-NH2), type of polyethylene film covering the tunnel (two types of film, Ginegar or Gemme 4S, characterized by various PAR transmissions) and stage of fruit...
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Journal of Elementology > 2011 > 16 > 2
The results of three-year investigations on cv. Galaxy F1 of cabbage grown commercially in the south Poland, an important agricultural region, are presented. In 2005-2007, a field experiment was carried out on silty clay soil containing 0.91-1.02% organic carbon and of the soil acidity pHH2O 7.18-8.21. Effects of the N form (ammonium sulfate and UAN: a solution of ammonium nitrate + urea) and the...
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Journal of Elementology > 2011 > 16 > 2
Biofortification of vegetables with iodine can become an alternative method to salt iodization of introducing this element to human diet. Iodine is not an essential nutrient for plants and its effect on plant growth and development has not yet been sufficiently examined. The aim of the study was to assess the influence of soil fertilization with iodine (in the form of I– and IO3 –) and nitrogen (applied...
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Iodine biofortification of vegetables can become an alternative (to iodized salt) method of introducing this element into human diet. Development of agronomic rules concerning its application requires detailed evaluation of iodine influence on plant physiological and biological processes including mineral nutrition and quality of yield. The aim of the study was to determine the effect of iodine and...
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Iodine is not an essential nutrient for plants. Side-effects of its application on mineral nutrition of plants have not yet been thoroughly documented. The aim of the study was to evaluate the influence of soil application of iodine and sucrose on mineral composition of spinach plants. In 2009–2010, a pot experiment with spinach Spinacia oleracea L. ‘Olbrzym zimowy’ cv. cultivation on mineral soil...
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Jod nie jest jednak składnikiem pokarmowym roślin. Jego uboczny wpływ na gospodarkę mineralną roślin nie został dobrze udokumentowany. Celem badań było określenie oddziaływania jodu oraz doglebowej aplikacji sacharozy na zawartość metali ciężkich i pierwiastków śladowych w szpinaku. W latach 2009–2010 przeprowadzono doświadczenie wazonowe z uprawą szpinaku Spinacia oleracea L. ‘Olbrzym zimowy’ na...
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Ecological Chemistry and Engineering. A > 2011 > Vol. 18, nr 1 > 105-112
In 2003-2005 in carrot cultivation the following combinations were applied (kg N o ha -1): 1 -Control (without N fertilization), 2 - calcium nitrate 70, 3 - calcium nitrate 70 + 70, 4 - ammonium sulphate 70 and 5 - ammonium sulphate 70 + 70; where 70 means 70 kg N o ha-1 was used preplant, whereas 70 + 70 that 70 + 70 kg N o ha-1 was applied preplant and as a top dressing, respectively. In the individual...
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Ecological Chemistry and Engineering. A > 2011 > Vol. 18, nr 1 > 97-103
In the research carried out in 2004-2005 with carrot cultivation the following combinations were applied: 1 - Control (without N fertilization), 2 - ENTEC-26 35 + 35 kg N, 3 - ENTEC-26 70 + 70 kg N, 4 -ENTEC-26 105 + 105 kg N, 5 - ammonium nitrate 35 + 35 kg N, 6- ammonium nitrate 70 +70 kg N, 7 -ammonium nitrate 105 + 105 kg N o ha-1; where 35 + 35, 70 + 70 and 105 + 105 kg N o ha-1 denote nitrogen...
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There is an existing need for the development of rapid and easy-to-perform methods for analyzing chemical composition of soil basing on simultaneous extraction of many elements in a single solution. Furthermore, it is desirable that mineral concentration determined in soil using these methods should be significantly correlated with its content in plants. Many researches indicated that soil concentration...
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Foliar application of fertilizers containing biostimulators can influence yield and the uptake and accumulation of NO3- by plants. The aim of the research was to determine the influence of foliar nutrition with ‘Pentakeep V’ and diverse doses of nitrogen fertilization on yield, plant nitrogen metabolism and nutritional quality of spinach. The experiment design included two sub-blocks with and without...
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The aim of this research was to determine the influence of various forms, diverse doses, and methods of application of nitrogen fertilizers and foliar nutrition on the concentration of soluble sugars, ascorbic acid and phenolic compounds in cabbage. The three year (2005–2007) field experiment was carried out with ‘Galaxy’ F1 white cabbage. Two factors were examined: the type of N fertilizer ammonium...
