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Changes of Nutrient Contents in Tomato Fruits Under The Influence of Increasing Intensity of Manganese Nutrition

100%
Kleiber T.
Ecological Chemistry and Engineering S
|
2014
|
vol. 21
|
issue 2
297-307
EN
The aim of conducted in years 2008-2012 studies was to assess the efficiency of application of increasing manganese levels on the nutritive value of tomato fruits (Lycopersicon esculentum Mill. cvs. ‘Alboney F1’ and ‘Emotion F1’), expressed in the contents of macro- and micronutrients. Plants were grown in rockwool with application of nutrient solution characterized the following chemical composition (in [mg dm–3]): N-NH4 2.2, N-NO3 - 230, P - 50, K - 430, Ca - 145, Mg - 65, Cl - 35, S-SO4 - 120, Fe - 2.48, Zn - 0.50, Cu - 0.07, pH -5.50, EC - 3.00 mS cm–1. The following manganese plant nutrition levels were examined (in mg Mn · dm–3): 0.06 (control), 0.3, 0.6, 1.2 (Experiment I), 2.4, 4.8, 9.6 and 19.2 (Experiment II); (denoted as Mn-0, Mn-0.3, Mn-0.6, Mn-1.2, Mn-2.4, Mn-4.8, Mn-9.6; Mn-19.2). The source of manganese was manganese sulfate (MnSO4 · H2O, 32.3% Mn). The nutritive value of tomato fruits changed significantly under the influence of the application of wide range of manganese concentrations. It was found a significant reduction of the content of phosphorus (Exp. I, II), potassium (Exp. II), calcium (Exp. I, II) and magnesium (Exp. I, II). Manganese influence on the decreasing content of other metallic micronutrients (Fe, Zn, Cu) in fruits. Cultivar had a significantly influence on the content of: nitrogen (except Mn-2.4, Mn-4.8, Mn-9.6), potassium (in Exp. II, except Mn-4.8), calcium (except for Mn-0.6, Mn-2.4), magnesium (except Mn-0.3 and Mn-2.4), iron (except Mn-1.2), manganese and zinc (except control combination) and copper (except Mn-0.6 and Mn-1.2). The highest contents of N, Ca and Mg in fruits were recorded for the application of Mn-0, while for P and K - at 0.3 mg Mn dm–3, whereas it was lowest for all these nutrients (except N) in the case of Mn-19.2 (Exp. II). The reduction of nutrient contents amounted to (% changes: from the lowest content to the highest content): N (11.3), P (48.1), K (24.8), Ca (75.4), Mg (57.5), Fe (59.2), Zn (65.4) and Cu (43.7).
2
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New feed supplement from macroalgae as the dietary source of microelements for pigs

88%
Michalak I., Chojnacka K., Korniewicz D.
Open Chemistry
|
2015
|
vol. 13
|
issue 1
EN
The aim of the study was to perform feeding experiments on growing pigs in order to assess the impact of macroalga Enteromorpha sp. enriched with Zn(II) and Cu(II) ions via the biosorption process on the mineral composition of blood, meat, liver, feces and urine. In the control group, microelements were supplemented as inorganic salts, whereas in the experimental groups they were replaced by enriched macroalga. After 3 months of the feeding experiment, it was found that the meat was biofortified with Cr, Mn, Fe, Cu and Zn. The average content of Zn in the blood from the pigs fed with algae was higher by 9.5%, compared to that in the blood from pigs in the control group. The liver of growing pigs from the experimental group contained 16% less Cu and 18% less Zn than the liver in the control group. Growing pigs fed with macroalgae excreted in feces 27% more Zn than growing pigs in the control group, but 3.5 times less Cu. It could be concluded that the bioavailability of microelements to pigs from algae was higher than from the inorganic salts. Baltic macroalgae enriched with microelement ions could be potentially used as a biological feed additive.
3
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Effect of Manganese Nutrition on Content of Nutrient and Yield of Lettuce (Lactuca Sativa L.) in Hydroponic/Wpływ Żywienia Manganem Na Zawartość Składników I Plonowanie Sałaty (Lactuca Sativa L.) W Hydroponice

63%
Kleiber T.
Ecological Chemistry and Engineering S
|
2014
|
vol. 21
|
issue 3
529-537
EN
The aim of conducted studies was estimation of increase manganese nutrition on content of nutrient and yielding of lettuce (Lactuca sativa L.) in hydroponic cultivation. Plants were grown in rockwool using closed system fertigation with recirculation of nutrient solution. In experiment were used nutrient solution with following nutrient contents [mg·dm-3]: N-NH4 < 10, N-NO3 150, P-PO4 50, K 150, Ca 150, Mg 50, Fe 3.00, Zn 0.44, Cu 0.03, B 0.011, pH 5.50, EC 1.8 mS·cm-1. It was studied the following manganese concentrations in nutrient solution (in [mg・dm-3]): 0.5, 4.8, 9.6, 19.2 (described as Mn-I, Mn-II, Mn-III and Mn-IV). It was found a significant influence of increasing manganese concentration applied in fertigation on the content of: N, K (for Mn-IV); P, Fe, Cu (for Mn-III and Mn-IV); Mg, Zn (for Mn-II to Mn-IV) in aboveground parts of lettuce. It was no differences in case of calcium and sodium content. Increasing concentration of manganese used to fertigation significantly influenced the content of Mn in plants. Manganese also affected on the SPAD measurement (decreasing at Mn-IV) and yielding of the plants (decreasing for Mn-II to Mn-IV comparing with Mn-I).
PL
Celem przeprowadzonych badań była ocena wpływu wzrastającego żywienia manganem na zawartość składników pokarmowych i plonowanie sałaty (Lactuca sativa L.) w uprawie hydroponicznej. Rośliny uprawiano w wełnie mineralnej z zastosowaniem układu zamkniętego z recyrkulacją pożywki. W doświadczeniach stosowano pożywkę o następującej zawartości składników pokarmowych [mg·dm-3]: N-NH4 < 10, N-NO3 150, P-PO4 50, K 150, Ca 150, Mg 50, Fe 3,00, Zn 0,44, Cu 0,03, B 0,011, pH 5,50, EC 1,8 mS·cm-1. Badano następujące poziomy żywienia manganem w pożywce [mg・dm-3]: 0,5, 4,8, 9,6, 19,2 (opisane jako Mn-I, Mn-II, Mn-III i Mn-IV). Wykazano istotny wpływ wzrastających stężeń manganu stosowanego w fertygacji na zawartość w częściach nadziemnych sałaty: N, K (dla Mn-IV); P, Fe, Cu (dla Mn-III i Mn-IV); Mg, Zn (dla Mn-II do Mn-IV). Nie stwierdzono różnic w przypadku zawartości wapnia i sodu. Wzrastające stężenia manganu stosowanego w formie fertygacji silnie wpływały na zawartość tego składnika w roślinach. Mangan oddziaływał także na odczyt SPAD (obniżenie dla Mn-IV) i plonowanie roślin (obniżenie dla Mn-II - Mn-IV w porównaniu z Mn-I).
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