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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Effect of nitrogen fertilization and plant density on seed yield and fat content and quality of pot marigold (Calendula officinalis L.) under climatic conditions of Belarus

100%
Kwiatkowski C. A., Harasim E., Yakimovich A.
Acta Scientiarum Polonorum. Hortorum Cultus
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2020
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tom 19
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nr 5
This paper presents the results of a study on the effect of different N fertilization and seeding rates on yield and some quality parameters (of seeds) of pot marigold. A field experiment was carried out during 2014–2016 under soil and climatic conditions of Belarus (Priluki Research Station near Minsk). The experiment included the following factors: N fertilization rate 40, 60, 80, 100 kg hm⁻¹; plant density per 1 m² (30, 50, 70, 90). The experiment was set up as a randomized block design in five replicates, with a single plot area of 8.0 m² . The soil in Priluki was characterized by medium nutrient availability (at the level: P = 120–127, K = 164–174, Mg = 59–66 mg kg⁻¹ soil). Regardless of the experimental factors, weather conditions had a significant impact on pot marigold productivity. The year 2016, characterized by an even distribution of rainfall during the growing season and moderate air temperatures, proved to be most beneficial for pot marigold productivity and quality. Hydrological conditions in the other years (2014 and 2015) there was a slight drought. The year 2014 should be considered to be cold, whereas the second year of the study (2015) was moderately warm. Best production effects (seed yield, fat yield) were obtained at rates of 60–80 kg N hm⁻¹. This rate of nitrogen fertilization also modified the fatty acid composition, contributing to a higher content of linoleic acid and calendic acid (∑ α-calendic and β-calendic acids). A nitrogen rate of 100 kg N hm⁻¹ proved to be irrational in terms of the quantity and quality of pot marigold yield. A density of 50–70 plants per 1 m² resulted in the highest seed and fat yield per unit area. A plant density of 50 plants per 1 m² resulted in the highest content of C18 unsaturated acids (stearic acid, oleic acid, linoleic acid) in the oil.
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Efektywność biopreparatów w konwencjonalnym i ekologicznym systemie uprawy rumianku pospolitego (Chamomilla recutita L. Rausch)

100%
Kwiatkowski C. A., Yakimovich A., Kolodziej B., Harasim E.
Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura
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2017
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tom 72
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nr 1
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Wpływ herbicydów na biomasę chwastów, plon ziarna i wybrane elementy plonowania prosa zwyczajnego (Panicum miliaceum L.)

100%
Kwiatkowski C. A., Yakimovich A., Harasim E., Haliniarz M.
Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura
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2017
|
tom 72
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nr 1
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Application of foliar herbicides in proso millet crops in relation to grain quality

100%
Kwiatkowski C. A., Harasim E., Haliniarz M., Yakimovich A.
Acta Agrophysica
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2017
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tom 24
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nr 1
This paper presents the results of a study on the tolerance of proso millet to herbicides (2,4-D + fluroxypyr; tribenuron-methyl + fluroxypyr; MCPA – 2-methyl-4-chlorophenoxyacetic acid; dicamba + triasulfuron) foliar-applied at the tillering stage of proso millet, at the maximum rate (100%) and at a rate reduced by 50%. Plots without herbicide application were the control treatment. The experiment was carried out on a loess-derived soil (soil class II) under the climatic conditions of the central Lublin region, Poland. The study proved that herbicide application in millet crops was justified, because the herbicides (in particular 2,4-D + fluroxypyr and tribenuron-methyl + fluroxypyr) contributed to a statistically significant improvement in the grain chemical composition (especially to an increased content of essential amino acids, fat, selenium, and o-dihydroxy phenols). Moreover, no residues of active substances of the herbicides were found in the millet grain samples analysed. The herbicide rate reduced by 50% proved to be sufficient to ensure appropriate quality of millet grain.
5
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Foliar applied biopreparations as a natural method to increase the productivity of garden thyme (Thymus vulgaris L.) and to improve the quality of herbal raw material

88%
Kwiatkowski C. A., Haliniarz M., Harasim E., Kolodziej B., Yakimovich A.
Acta Scientiarum Polonorum. Hortorum Cultus
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2020
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tom 19
|
nr 1
The aim of this experiment was to determine the effects of three foliar biopreparations applied once or twice (growth stimulant Bio-algeen, fertilizer Herbagreen Basic, and Effective Microorganisms in the form of EM Farming spray) on yield and quality of herbal raw material of organically grown garden thyme (Thymus vulgaris). It was proved that the Bio-algeen had an effect on increasing thyme productivity, whereas Effective Microorganisms had no impact at all on herb yield. The beneficial action of biopreparations was more evident under favorable hydrothermal conditions over the study period than under unfavorable conditions. The biopreparations stimulated an increase in the essential oil content in the thyme herb. Bio-algeen, especially when applied twice, had the greatest positive influence on the quality of raw material, Effective Microorganisms were found to have a smaller effect (positive and negative), whereas Herbagreen Basic had positive effect on thyme yield and essential oil content. The effect of Bio-algeen, and to a lesser extent that of Effective Microorganisms, on the content of natural antioxidants (phenolic acids, polyphenols) in the thyme raw material and, moreover, its impact on free radical scavenging and antioxidant activity should be considered to be a particularly valuable finding. Due to application of the Bio-algeen, herbal raw material characterized by the best health-promoting parameters can be obtained.
6
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Evaluation of spent mushroom substrate, mineral NPK fertilization and manure fertilization on chamomile (Chamomilla recutita L. Rausch) yield and raw material quality

88%
Kwiatkowski C. A., Harasim E., Yakimovich A., Kolodziej B., Tomczynska-Mleko M.
Acta Scientiarum Polonorum. Hortorum Cultus
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2018
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tom 17
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nr 3
The aim of this experiment was to determine the effect of spent mushroom substrate (SMS), manure and mineral fertilization with nitrogen, phosphorus and potassium on chamomile (Chamomilla recutita L. Rausch) yield and raw material quality. Unfertilized chamomile plots were the control treatment. This study hypothesized that due to its high content of organic matter and macro- and micronutrients, SMS could be an alternative and innovative method of fertilization of this herbal plant. Given that the possibility of using organic fertilization is very limited, we should seek new methods to increase the organic matter content in cultivated soils. A three-year field experiment with a split-block design was conducted on podzolic soil under the climatic conditions of the central Lublin region (Poland). SMS used in this experiment was richer in dry matter and total nitrogen, but less rich in total organic carbon, phosphorus and potassium than farmyard manure. In each year of the study, the highest total yield of chamomile raw material was recorded in the treatment with SMS supplemented with mineral NPK fertilization in spring. The above-mentioned treatment also proved to be most beneficial for the majority of the analyzed quality parameters of the chamomile raw material. It was proved that due to fertilization of a chamomile plantation with SMS, herbal raw material characterized by the best health-promoting parameters (a high content of natural antioxidants) can be obtained.
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