Wyniki wyszukiwania - Biblioteka Nauki

1

Concentration of micronutrients in pea and lupin plants depending on the soil tillage system

100%

Stanislawska-Glubiak E. , Korzeniowska J.

Journal of Elementology

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2009

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tom 14

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nr 2

357-364

EN

In a two-year field study, the changes in Cu, Zn, Mn and B concentrations in aerial parts of lupine and pea were observed under traditional and no-tillage system. In each year, plant material samples were collected four times at 10-day intervals, from 30 days after sowing to the flowering stage. In plants of one species but grown under different tillage systems, differences in the content of micronutrients occurred in the early growth season, and tended to disappear in the early inflorescence phase. In general, these concentrations were higher in plants under traditional tillage system. However, under drought conditions these concentrations were higher in plants under no-tillage system. Regardless of a tillage system, some changes in micronutrient concentration during the vegetation period were observed. Concentration of copper in aerial parts of plants evidently decreased as the plants grew older. Fluctuations in the levels of Zn, Mn, and B did not follow such clearly defined tendencies and were dependent on the plant’s species and individual elements.

PL

W 2-letnich badaniach polowych obserwowano zmiany koncentracji Cu, Mn, Zn i B w nadziemnej części łubinu i grochu uprawianych w tradycyjnym i zerowym systemie uprawy roli. W każdym roku pobierano próbki roślinne w 4 terminach, co 10 dni, w okresie od 30. dnia po siewie do fazy kwitnienia. W roślinach jednego gatunku, lecz rosnących w warunkach różnych systemów uprawy, wystąpiły różnice w poziomie zawartości mikroelementów w początkowym okresie wegetacji. Różnice te zanikały w fazie początku kwitnienia. Zawartość mikroelementów na ogół była wyższa w roślinach z uprawy tradycyjnej, natomiast w warunkach suszy – w roślinach z uprawy zerowej. W miarę upływu okresu wegetacji obserwowano pewne zmiany koncentracji mikroelementów niezależnie od systemu uprawy roli. Zawartość Cu w częściach nadziemnych roślin wyraźnie malała w miarę zbliżania się do fazy kwitnienia. Zmiany zawartości Zn, Mn i B nie były tak jednoznacznie ukierunkowane i zależały od pierwiastka i gatunku rośliny.

2

The effect of furnace ash on yielding and microelements concentrations in selected grass species

88%

Antonkiewicz J.

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nr 1 Suppl.

3

Influence of soil fertilization on concentration of microelements in soil solution of sandy soil

75%

Rutkowska B. , Szulc W. , Labetowicz J.

Journal of Elementology

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2009

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tom 14

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nr 2

349-355

EN

The study was carried out to asses the influence of soil mineral fertilization, manure application and soil liming on changes in the concentration of microelements (B, Cu, Fe, Mn and Zn) in soil solution. The tests were performed on samples of sandy soil collected from long-term fertilization experiments being conducted on lessive soil of the granulometric structure of clayish sand. Soil solution was prepared with the suction method. The concentration of microelements in soil solution was determined by means of the ICP method. The results showed an increase in Fe, Mn, Zn and Cu and a decrease in B and Mo in soil solution when soil was fertilized with nitrogen. The concentration of microelements in soil solution was not significantly influenced when soil was fertilized with phosphorous and potassium. Liming had a significant effect on a decrease in the concentration of Fe, Mn, Zn and Cu and an increase in B and Mo in soil solution. Soil application of manure significantly increased the concentration of microelements in soil solution.

PL

Celem pracy była ocena wpływu nawożenia mineralnego oraz stosowania obornika i wapnowania na zmiany stężenia mikroelementów (B, Cu, Fe, Mn i Zn) w roztworze glebowym gleby lekkiej. Próbki glebowe pobrano z trwałego doświadczenia nawozowego prowadzonego na glebie płowej o składzie granulometrycznym piasku gliniastego lekkiego. Roztwór glebowy pozyskiwano metodą podciśnieniową. W roztworze glebowym mikroelementy oznaczono metodą ICP. Stwierdzono, że w warunkach nawożenia azotem obserwuje się zwiększenie stężenia żelaza, manganu, cynku i miedzi oraz zmniejszenie stężenia boru i molibdenu w roztworze glebowym. Nawożenie fosforem i potasem nie wpływa istotnie na stężenie mikroelementów w roztworze glebowym. Wapnowanie przyczynia się do zmniejszenia stężenia żelaza, manganu, miedzi i cynku oraz zwiększenia stężenia boru i molibdenu w roztworze glebowym, a pod wpływem stosowania obornika obserwuje się istotne zwiększenie stężenia mikroelementów w roztworze glebowym.

4

The effect of seedling planting time on macroelement and microelement concentrations in basil (Ocimum basilicum L.) leaves

75%

Majkowska-Gadomska J. , Wierzbicka B. , Dziedzic A.

Polish Journal of Environmental Studies

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2014

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tom 23

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nr 1

EN

A two-factorial field experiment was performed in a randomized block design with three replications in 2010-11 in the Experimental Garden of the University of Warmia and Mazury in Olsztyn, to determine the effect of seedling planting time on the concentrations of mineral compounds in basil leaves. Plot area was 1.2 m2. The experimental factors were: (1) plants of sweet basil, purple (purpurascens) basil, and cinnamon basil, and (2) time of planting basil seedlings. The concentrations of macroelements (total nitrogen, phosphorus, potassium, magnesium, calcium, and sodium) and microelements (iron and copper) were determined in basil leaves. The content of total nitrogen, phosphorus, potassium, magnesium, calcium, and sodium in basil leaves depended on the cultivar. Cinnamon basil contained the highest concentrations of total nitrogen, phosphorus, magnesium, and calcium, whereas sweet basil had the highest content of potassium and sodium. The time of planting seedlings had a significant effect on the iron content of basil leaves, which was higher in plants that developed from seedlings planted on 19 May.

5

Analysis of plant micronutrient composition using the ANE method

75%

Korzeniowska J. , Stanislawska-Glubiak E.

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tom 07

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nr 2

EN

The authors calculated the total sum of microelements in plants and determined the percentage share of specific elements in this sum according to the ANE method. Then, both the changes of the microelements share in the sum and the changes of absolute microelement concentrations in plant tissues depending on soil pH were investigated. The sample collections of four plant species from the Silesia region, Poland, constituted the research material (156 samples in total). It was found that, in general, the Mn share in the sum decreased and the Fe share increased with increasing pH level. Moreover, the change of micronutrient weight-concentrations in plant tissues, which was caused by the pH changes, did not correspond with the change of the micronutrient relationship in the total sum. This result suggests that the assessment of micronutrient status in plants is not a reliable enough method when basing solely on the absolute weight-concentration in plant tissues.

6

The effect of nitrogen fertilizer form and foliar application on the concentrations of twenty-five elements in carrot

63%

Smolen S. , Sady W.

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tom 21

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nr 1

3-16

7

Wplyw wyciagu z ziol na poziom wybranych mikroelementow w surowicy krwi cielat

32%

Bombik E. , Bombik T. , saba L.

Biuletyn Informacyjny. Instytut Zootechniki

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2002

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tom 40

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nr 2

279-285