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Total and Protein Nitrogen Content in Potato Tubers under the Influence of Various Care and Nutrition Methods with the Use of Biostimulants

Mystkowska Iwona, Zarzecka Krystyna, Ginter Agnieszka, Gugała Marek, Sikorska Anna

Journal of Ecological Engineering

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2023

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Vol. 24, nr 2

247--255

EN

A two-factor field experiment was carried out in 2018–2020 at the Zawady Agricultural Experimental Station (52°03’ N and 22°33’ E) belonging to the University of Natural Sciences and Humanities in Siedlce in Poland. Tubers of two edible potato cultivars were investigated, i.e. Oberon and Malaga – factor one; in turn, factor two included variants of herbicide application with biostimulators: 1. control object – without preparations, 2. herbicide clomazone + metribuzin (Avatar 293 ZC), 3. herbicide clomazone + metribuzin and biostimulant PlonoStart, 4. herbicide clomazone + metribuzin and biostimulant Aminoplant, 5. herbicide clomazone + metribuzin and biostimulant Agro-Sorb® Folium. The biostimulators used in the research significantly increased the content of total nitrogen and protein nitrogen in tubers, as well as the share of protein nitrogen in total nitrogen in relation to the tubers collected from the control object. The genetic features of the cultivars also determined the concentration of total nitrogen and protein nitrogen in potato tubers.

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Yield-Forming Effects of Herbicide and Biostimulants Application in Potato Cultivation

Zarzecka Krystyna, Gugała Marek, Mystkowska Iwona, Sikorska Anna

Journal of Ecological Engineering

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2022

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Vol. 23, nr 3

137--144

EN

A field experiment was carried out in 2018-2020 in central-eastern Poland. The aim of the study was to determine the effect of different methods of applying herbicide and herbicide with biostimulants on the yields of dry matter, starch and protein. The experiment was established using the split-plot method, in which the first factor were two potato varieties (Oberon and Malaga), and the second factor involved five methods of applying herbicide and herbicide with biostimulants (1. control object, 2. clomazone herbicide + metribuzin, 3. clomazone herbicide + metribuzin + PlonoStart biostimulant, 4. clomazone herbicide + metribuzin + Aminoplant biostimulant, 5. clomazone herbicide + metribuzin + Agro-Sorb-Folium biostimulant). Potato varieties and methods of herbicide and biostimulant application significantly influenced the yield of dry matter, starch and protein. The highest yields of the above-mentioned tuber components were obtained from objects 5 and 3 sprayed with herbicide with the Agro-Sorb-Folium and PlonoStart biostimulants. The weather conditions prevailing in the years of the research were also decisive for the yield of protein collected from the area unit.

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The Leaf Greenness Index SPAD and Selected Features of Potato Following an Application of Herbicides and Biostimulants

Zarzecka Krystyna, Gugała Marek, Mystkowska Iwona, Sikorska Anna

Journal of Ecological Engineering

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2021

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Vol. 22, nr 8

54--63

EN

The objective of the research was to determine the effect of herbicides and herbicides combined with biostimulants on the leaf greenness index SPAD and selected potato characteristics, i.e. plant height, yield of large tubers and the vitamin C content. A three-year experiment was conducted to examine the following factors: factor I – three potato cultivars: Bartek, Gawin, Honorata; factor II – five methods of an application of herbicides and biostimulants: 1. control unit without chemical control, 2. the Harrier 295 ZC herbicide (linuron + clomazone), 3. the Harrier 295 ZC herbicide (linuron + clomazone) and the Kelpak SL biostimulant (Ecklonia maxima), 4. the Sencor 70 WG herbicide (metribuzin), 5. the Sencor 70 WG herbicide (metribuzin) and the Asahi SL biostimulant (sodium para-nitrophenol, sodium ortho-nitrophenol, sodium 5-nitroguaiacol). The cultivars investigated in the experiment significantly affected the leaf greenness index SPAD, plant height, yield of large tubers and the vitamin C content. The herbicides and biostimulants enhanced the values of the examined potato characteristics. Linear correlation coefficients confirm a strong, significant, positive correlation between the SPAD index and plant height, yield of large tubers and vitamin C content.

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Impact of Growth Biostimulators and Herbicide on the Content of Major Protein in Edible Potato Tubers

Baranowska Alicja, Mystkowska Iwona, Zarzecka Krystyna, Szczygielska Elżbieta

Journal of Ecological Engineering

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2019

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Vol. 20, nr 3

262--269

EN

New solutions which would allow for the realization of two basic objectives, i.e. production-related and environmental ones, continue to be sought in plant production. Hence, the purpose of research was to define the impact of five methods of potato field treatment with the application of growth biostimulators and herbicide on the content and harvest of major protein Solanum tuberosum L. Field experiments were carried out in the years 2015-2016 in the region of Eastern Poland (52°02’N; 23°07’E). The experiment was performed in the split-plot system in three replications. The tested factors included: I. Factor – two early edible potato cultivars (Owacja, Bellarosa), II. Factor – methods of treatment with the application of growth biostimulators: GreenOk-Uniwersal Pro and Asahi SL and their combination with Avatar 293 ZC herbicide. As a result of the carried out research, it was noted that the methods of treatment applied in the experiment had a beneficial effect on the value of tested features in comparison to the control object, treated exclusively mechanically (without the use of biostimulators and herbicide). Both in terms of protein concentration and the obtained crop of major protein, the application of mechanical treatment for sprouting of potato plants and Avatar 293 ZC herbicide at a dose of 1.5 dm3∙ha-1 directly before the sprouting and subsequently post sprouting, triple application of GreenOK Universal-PRO bioactivator at the following doses: 0.10 dm3∙ha-1 + 0.15 dm3∙ha-1 + 0.15 dm3∙ha-1 was the most beneficial. The average content of major proteins in this object amounted to 8.14% while the average protein yield – 750.09 kg·ha-1.

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The Impact of the UGmax Soil Fertilizer on the Presence of Streptomyces Scabies on Edible Potato Tubers

Baranowska A., Zarzecka K., Gugała M., Mystkowska I.

Journal of Ecological Engineering

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2018

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Vol. 19, nr 3

68--73

EN

The purpose of the three-year-long field experiment was to identify the effect of the UGmax soil fertilizer (microbiological preparation) on the presence of Streptomyces scabies on tubers of two edible potato cultivars. The experiment was established using the randomized split-block method, in three replications, in central Poland (52°03’N; 22°3’E), on the soil consisting of loamy sands, slightly acidic and acidic. The examined factors included: 1st factor: edible potato cultivars (Satina and Typhoon), 2nd factor: doses and dates of application of the UGmax soil fertilizer (1. control object without UGmax; 2. UGmax applied to soil before planting tubers at a dose of 1.0 dm3∙ha-1; 3. UGmax applied to soil before planting tubers at a dose of 0.5 dm3∙ha-1, when the height of plants is about 10–15 cm, and in the flower buds making phase at a dose of 0.25 dm3∙ha-1; 4. UGmax before planting tubers at a dose of 1.0 dm3∙ha-1 and when the height of plants is about 10–15 cm, and in the flower buds making phase at a dose of 0.5 dm3∙ha-1; 5. UGmax when the height of plants is about 10–15 cm, and in the flower buds making phase at a dose of 0.5 dm3∙ha-1). Symptoms of common scab were assessed on a 9-point scale on 100 tubers randomly collected from different experiment objects. As a result of the study, it was demonstrated that treatments with the use of the UGmax soil fertilizer limited the occurrence of common scab on potato tubers and affected the average level of infestation of the sample and the average level of infestation of infested tubers.