Temat: tuber quality - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Assessment of mineral nitrogen fertilization of early potato varieties in integrated production
Autorzy:: Trawczynski, C.
Powiązania:: https://bibliotekanauki.pl/articles/1192720.pdf
Data publikacji:: 2021
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: efficiency indicators
nitrogen dose
potato
tuber quality
yield
Opis:: Based on a 3-year field study, the effect of mineral nitrogen fertilization on the yield, selected tuber quality characteristics and fertilization efficiency indicators for early potato varieties grown in the integrated production system were determined. The quality of tubers was assessed according to the percentage share of tuber size and their external defects in the yield structure, starch content, dry matter, nitrates (V), protein and total nitrogen in tubers. The efficiency of fertilization with mineral nitrogen was expressed by the agronomic efficiency (AE), physiological efficiency (PE) and fertilizer recovery efficiency (FRE) by tubers. Two experimental factors were considered: nitrogen dose (0, 50, 100, 150 kg ha-1) and varieties (Bohun, Lady Rosetta, Lawenda, Madeleine, Magnolia). The increase in the dose of mineral nitrogen contributed to a significant increase in the yield structure of tubers with a diameter above 60 mm, the content of nitrates (V), protein, total nitrogen, the uptake of nitrogen and a decrease in nitrogen fertilization efficiency indicators. It was shown that the Lady Rosetta and Lawenda varieties were characterized by higher requirements concerning the optimal nitrogen dose than the other varieties. Nitrogen fertilization efficiency, the content of nitrates (V) and tuber greening were determined mainly by the weather conditions, while the yield, nitrogen content and uptake by tubers were determined by the fertilizing factor, and the remaining tuber quality features were shaped to the greatest extent by the genotype. In a wet year, a significantly higher tuber yield, more large tubers in the structure and higher nitrogen fertilization efficiency were obtained. In years with rainfall deficit, a higher content of total nitrogen, protein, nitrates (V) in tubers and higher nitrogen uptake were found than in a wet year.
Źródło:: Journal of Elementology; 2021, 26, 1; 109-123
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Plon i jakość bulw nowych odmian ziemniaka w warunkach zróżnicowanego nawożenia mineralnego azotem
The yield and tuber quality of new potato cultivars under conditions of varied mineral nitrogen fertilization
Autorzy:: Trawczynski, C.
Powiązania:: https://bibliotekanauki.pl/articles/36136.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: uprawa roslin
ziemniak
nowe odmiany
odmiany roslin
nawozenie mineralne
nawozenie azotem
nawozenie zroznicowane
bulwy
jakosc
plony
plant cultivation
potato
new cultivar
mineral fertilization
nitrogen fertilization
differentiated fertilization
tuber
tuber quality
yield
Opis:: Celem doświadczeń przeprowadzonych w latach 2013-2015 było określenie wpływu zróżnicowanego poziomu nawożenia mineralnego azotem na wielkość plonu i wybrane cechy jakości bulw nowych odmian ziemniaka. Badania przeprowadzono na czterech odmianach jadalnych: Igor, Jurek, Malaga, Oberon oraz trzech skrobiowych: Boryna, Jubilat, Kaszub uprawianych na glebie lekkiej. Nawożenie organicznie stanowiła słoma pszenna i międzyplon z gorczycy białej. W badaniach stosowano zróżnicowane nawożenie mineralne azotem: 0, 50, 100, 150 i 200 kg N·haˉ¹ oraz jednakową dawkę fosforu – 17,5 kg P·haˉ¹ i potasu – 99,6 kg K·haˉ¹, wynikającą z zasobności gleby w te składniki. Istotnie największy plon bulw uzyskano po zastosowaniu dawki 100 kg N·haˉ¹ dla odmian: Boryna, Jubilat, Kaszub i Malaga, a 150 kg N·haˉ¹ dla odmian: Igor, Jurek, Oberon. Zastosowana dawka 100 kg N·haˉ¹, średnio dla odmian powodowała istotnie największy wzrost zawartości skrobi i suchej masy w bulwach. Niską kumulację azotanów uzyskano do dawki 150 kg N·haˉ¹. Niezależnie od zastosowanej dawki azotu dla odmian Malaga i Jurek uzyskano istotnie największy plon bulw. Odmiana Kaszub charakteryzowała się istotnie największą zawartością skrobi w bulwach. Nawożenie mineralne azotem, właściwości genetyczne odmian oraz warunki pogodowe w latach miały istotny wpływ na wielkość uzyskanego plonu i badane cechy jakości bulw ziemniaka.
The aim of the experiments carried out in the years 2013-2015 was to determine the effect of different levels of nitrogen fertilisation on the yield and quality features of tubers of selected new potato cultivars. The study included four edible cultivars: Igor, Jurek, Malaga, Oberon and three starch cultivars: Boryna, Jubilat, Kaszub, grown on a light sandy soil. The organic fertilisation applied was wheat straw and white mustard intercrop. In these experiments 5 levels of mineral nitrogen fertilisation were applied: 0, 50, 100, 150 and 200 kg N·haˉ¹, and constant doses of phosphorus – 17.5 kg P·haˉ¹ and potassium – 99.6 kg K·haˉ¹, determined on the basis on the levels of those elements in the soil. Significantly the highest tuber yield was achieved at the dose of 100 kg N·haˉ¹ for cultivars Boryna, Jubilat, Kaszub and Malaga, and 150 kg N·haˉ¹ for cultivars Igor, Jurek and Oberon. On average for the cultivars, the dose of 100 kg N·haˉ¹ caused significantly the highest content of starch and dry matter in tubers. Low accumulation of nitrates was obtained for the dose of 150 kg N·haˉ¹. Irrespective of the nitrogen dose applied, significantly the highest tuber yield was obtained for cultivars Malaga and Jurek. Cultivar Kaszub was characterised by significantly the highest starch content in tubers. The level of nitrogen fertilisation, genetic properties of the cultivars, and the weather conditions in the years had a significant impact on the level of tuber yield obtained and on the analysed quality features of potato tubers.
Źródło:: Acta Agrophysica; 2016, 23, 2
1234-4125
Pojawia się w:: Acta Agrophysica
Dostawca treści:: Biblioteka Nauki