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Effect of substances separated from oxihumolite on selected vegetable species

100%

Richter R., Hlusek J.

Zeszyty Problemowe Postępów Nauk Rolniczych

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1995

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tom 422

99-107

Using the vegetationvessel trials with soil naturally contaminated with Zn, Pb and Cd, the effect of sodium humate was observed, after placement into the soil, as exerted on the content of heavy metals and the yields of vegetable crops. Following vegetable species were included: lettuce, kohlrabi, carrot and paprika. The effect of applied humate was found highly significant in the yields of lettuce and kohlrabi, specifically: The content of zinc decreased in the plants, the decrease was the greater depending on their reaction with the respective heavy metal in the soil. The strongest effect on decreasing the contents of Zn and Cd was observed in the lettuce and kohlrabi plants, while in the carrot and paprika plants its effect on the content of heavy metals was weak. In contrast to Zn and Cd the sodium humate decreased the content of lead in lettuce only. According to the ratio of humic acids to fulvic acids it is possible to utilize humate in the first two years following its application, for the purpose of decreasing the Zn, Cd and Pb contents.

2

The content of micronutrients in potato (Solanum tuberosum L.) plants grown on cadmium contaminated soils

100%

Losak T., Hlusek J.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2004

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tom 502

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nr 2

Changes in the contents of some selected microbiogenous elements (Cu, Mn, Fe, Zn) in haulms and tubers, yield of tubers and content of nitrates in potatoes grown in soil contaminated with cadmium were evaluated in pot experiments. Under conditions of constant supply of N, P, and K, the natural cadmium reserve in soil (0.21 mg Cd·kg⁻¹) was adapted with supplements of Cd (NO₃)₂, to content of 0.4, 1, 2 and 4 mg Cd·kg⁻¹. Increasing Cd levels in soil showed an irregular effect on content of some microelements in potato plants of the Impala cv. As compared with all other variants, a statistically highly significant increase of Cu, Mn, Fe and Zn content in tubers was observed at the level of 1 mg Cd·kg⁻¹. In haulms, on the other hand, there was highly significant decrease in contents of Cu, Mn, Fe and Zn at the level of 2 mg Cd·kg⁻¹. As compared with tubers, a markedly higher content of all microbiogenous elements under study was found in the haulms. Content of Cd in potato haulms and tubers increased highly significantly with its increasing content in soil. Cadmium was accumulated above all in haulms where its content was several times higher than in tubers. The approved limits of Cd, Cu, Mn, Fe and Zn contents in potato tubers were not exceeded in any of our experimental variants. Increasing doses of cadmium did not influence the yield of tubers. Content of nitrates in tubers did not exceed the approved limit of 300 mg NO₃⁻·kg⁻¹ of fresh tubers in none of our experimental variants.

3

Changes in the content of sulphur and selected heavy metals in soil fertilised with sulphur

100%

Fryscakova E., Hlusek J.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa

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2007

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tom 93

231-235

4

Effect of years, fertilization and growing regions on the content and forms of potassium in soil

100%

Skarpa P., Hlusek J.

Journal of Elementology

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2012

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tom 17

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nr 2

The dynamics of potassium (K) in soil was investigated in long-term small-plot field trials at seven stations, where five combinations of fertilization were tested. The objective of the experiment was to estimate the effect of the weather conditions, type of growing region and increasing doses of fertilizers on the content of water soluble K (Sol-K), exchangeable K (Ex-K) and acid soluble K (Ac-K) in soils. The weather conditions had the strongest effect on the total variability of the Sol-K (34.9%), to a lesser extent on the variability of Ex-K (14.1%) and only negligibly on the Ac-K (0.3%). In the individual years of the experimental period, the content of water soluble and Ex-K was particularly affected, chiefly by the weather and due to different demands of crops for this nutrient (leguminous plants consume high amounts and cereals relatively low amounts of K). In fairly dry years (e.g. 1982), the level of potassium (Sol-K and Ex-K) in soil was higher than in years with precipitation above the average. The content of soluble and exchangeable K was positively influenced by the application of potassium fertilization (0.989, 0.994, respectively). Compared to the control, the content of Sol-K and Ex-K in the variant where the fertilizer dose was the highest increased by 69.3 and 55.3%, respectively. Potassium fertilization (compared to the control) raised the level of the Ac-K, but not significantly, also implying that the effect of fertilization on the total variability of the Ac-K (0.6%) was virtually none. The effect of the growing region on the total variability of the potassium content was higher wherever the potassium bonding to the the sorption soil complex was stronger. The differences between the average levels of Sol-K characterizing the growing regions were not statistically significant. The levels of Ex-K and Ac-K differed significantly in the sugar-beet growing region, where the reserve was more than 40% higher than in the potato growing region.

5

Potassium forms in soil

100%

Skarpa P., Hlusek J.

Acta Agraria et Silvestria. Series Agraria

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2003

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tom 40

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nr Sek.roln.

The dynamics of potassium in the soil was investigated in long-term small-plot field trials at the three stations (Tab. 1), where was used five variants of fertilisation (Tab. 2). The aim of experiment was to determine the effect of mineral fertilisers and organic manures on K balances and content its forms in soil. The level of the potassium in three forms: water-soluble K, available K and mobile K reserve were determined. The water-soluble K was most influenced by the graded dosages of fertilisers. The content of water-soluble K and available K increased about two times compared to first variant (no fertilised), 100.6% (Tab. 3) and 96.6% respectively (Tab, 4). The level of mobile K reserve was not influenced by the fertilisation (Tab 5).

6

Effect of organomineral fertilization the yield and quality of selected vegetable garden crops

81%

Hlusek J., Richter R., Rikanova J.

Zeszyty Problemowe Postępów Nauk Rolniczych

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1995

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tom 422

109-115

W doświadczeniu wazonowym badano wpływ nawozu organiczno-mineralnego (OMF) na plony roślin sałaty, kalarepy, pomidora i papryki oraz ich jakość. Zastosowanie OMF zwiększyło plony sałaty, a kalarepy jedynie wyższa dawka nawozu. Działanie OMF było efektywniejsze niż równoważonych dawek tradycyjnych nawozów mineralnych OMF istotnie zwiększał ilość owoców oraz plon całkowity pomidora, nie wywierał istotnego wpływu na plon papryki. Nawożenie OMF zwiększało zawartość azotanów (do poziomu przekraczającego standardy) w roślinach sałaty i kalarepy. Zastosowanie wyższej dawki OMF determinowało kumulację metali ciężkich w uprawianych roślinach specyficznie dla każdej rośliny. Zwiększone pobieranie ołowiu stwierdzono u sałaty i papryki, zmniejszone u kalarepy. Sałata, pomidor i papryka nawożone OMF zawierały istotnie mniej rtęci.

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Bilans substancji odzywczych i zapotrzebowanie na nawozenie

81%

Richter R., Travnik K., Hlusek J.

Folia Universitatis Agriculturae Stetinensis. Agricultura

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2000

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tom 84

429-434

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The effect of nitrogen and boron fertilization on poppy (Papaver somniferum L.) yield and composition

81%

Losak T., Richter R., Hlusek J.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2004

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tom 502

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nr 2

Effects of two doses of nitrogen (0.6 and 0.9 g N·pot⁻¹) in combination with foliar application of boron (10 mg B·pot⁻¹) and two levels of P and K were studied in a pot experiment with poppy plants (Papaver somniferum L.). After the application of boron, a marked increase of its concentration in plants (112-126 mg·kg⁻¹) was observed. As compared to variants without boron, higher B concentrations were found in variants with the supply of this element within the whole course of growing season. Concentration of nitrogen decreased boron content during growing season due to a dilution effect. However, there were no grater differences among individual variants. In combination with increased levels of N, P, K, the application of B on leaves increased the seed yield by 6.4% and decreased production of straw by 6.7% as compared to controls without supply of this element. This fact was manifested also in the narrowest straw/seeds ratio. The volume of one capsule ranged in individual variants from 13.1 to 16.6 ml per plant but without any direct dependence on seed yield. The application of boron was manifested only in combination with increased levels of N, P, K. Concentrations of morphine in straw (empty heads + 15 cm of stem) increased with the increasing supply of nitrogen from 0.40 to 0.49%. The effect of boron supply was not marked too much.

9

Comparison of selected elements of environment in the Czech Republic and Republic of Poland

71%

Hlusek J., Richter R., Ryant P., Zalud Z., Wisniowska-Kielian B.

Acta Agraria et Silvestria. Series Agraria

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2003

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tom 40

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nr Sek.roln.

In paper state of selected environmental elements in Czech Republic and Republic of Poland was compared. It was confirmed improvement of state of environment in majority indexes observed in the last two decades in both countries by lower dust and gasses emission, which in Poland may be partly caused by decrease of industrial production From this reason should be pay peculiar attention in ease of animation of economy, because of increase of threats from industry. Both countries should reduce emission from mobile sources. There is also need increase of sewage water plants number because of insufficient level of biogen removal.

10

Potassium and its forms in the nutrition of poppy (Papaver somniferum, L.)

61%

Losak T., Richter R., Hlusek J., Popp T., Antonkiewicz J., Ducsay L.

Nawozy i Nawożenie

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2005

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tom 07

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nr 3[24]

11

Nitrogen and sulphur fertilisation affecting soybean seed spermidine content

42%

Losak T., Sevcik M., Plchova R., von Bennewitz E., Hlusek J., Elbl J., Bunka F., Polasek Z., Antonkiewicz J., Varga L., Vollmann J.

Journal of Elementology

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2018

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tom 23

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nr 2

12

Comparison of the effectiveness of applications of mineral fertilisers and digestate from a biogas station on yields, content of dry matter and micronutrients in the aboveground biomass of maize (Zea mays L.)

42%

Losak T., Goncalves T. V. F., Musilova L., Zatloukalova A., Fryc J., Vitez T., Vitezova M., Skarpa P., Hlusek J., Marecek J., Wisniowska-Kielian B., Kovacik P.

Zeszyty Naukowe Uniwersytetu Przyrodniczego we Wrocławiu. Rolnictwo

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2013

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tom 106

Ograniczanie wyników

Effect of substances separated from oxihumolite on selected vegetable species

The content of micronutrients in potato (Solanum tuberosum L.) plants grown on cadmium contaminated soils

Changes in the content of sulphur and selected heavy metals in soil fertilised with sulphur

Effect of years, fertilization and growing regions on the content and forms of potassium in soil

Potassium forms in soil

Effect of organomineral fertilization the yield and quality of selected vegetable garden crops

Bilans substancji odzywczych i zapotrzebowanie na nawozenie

The effect of nitrogen and boron fertilization on poppy (Papaver somniferum L.) yield and composition

Comparison of selected elements of environment in the Czech Republic and Republic of Poland

Potassium and its forms in the nutrition of poppy (Papaver somniferum, L.)

Nitrogen and sulphur fertilisation affecting soybean seed spermidine content

Comparison of the effectiveness of applications of mineral fertilisers and digestate from a biogas station on yields, content of dry matter and micronutrients in the aboveground biomass of maize (Zea mays L.)