Yields of winter triticale under the influence of nitrogen fertilisation and fungicide application

• Autorzy: Bielski S.

Warianty tytułu

PL

Plonowanie pszenżyta ozimego pod wpływem nawożenia azotem i ochrony fungicydowej

• Języki publikacji: EN

Abstrakty

EN

This research encompassed the results of a three-year (2009–2011) field experiment conducted at the Research Station in Bałcyny near Ostróda. The first order factor was nitrogen fertilisation (kg N·ha⁻¹): 30, 60, 90, 120 and 150. The second order factor was the level of protection against fungal diseases: seed dressing, seed dressing + one application of fungicides, seed dressing + two applications of fungicides. The aim the researches was analyzing production output, expressed by grain yield and its components, as affected by different levels of nitrogen fertilisation (the yield forming factor) and protection against pathogens (the yield protecting factor). Statistical analysis of the results showed that the grain yield was significantly affected by the year of the trial, nitrogen fertilisation, fungicidal treatment and interaction of the first and second order factors. The yield structure were significatly influenced by the year of the experiment (1.000 grains weight, ears number m²), nitrogen fertilisation (1.000 grains weight, grain number per ear), fungicial treatment (1.000 grains weight, grain weight per ear). Calculated regression equation between the dose of nitrogen and grain yield shows that the maximum yield of grain in a field experiment with the variety ‘Gniewko’ can be achieved at 145 kg N·ha⁻¹. The highest yield obtained (in all research years) from objects with full protection against pathogens.

PL

Materiał badawczy stanowiły wyniki trzyletniego (2009–2011) doświadczenia polowego zlokalizowanego w Zakładzie Produkcyjno-Doświadczalnym w Bałcynach k. Ostródy. Czynnikiem pierwszego rzędu było nawożenie azotem (kg N·ha⁻¹): 30, 60, 90, 120, 150. Czynnik drugiego rzędu stanowił poziom ochrony przed chorobami grzybowymi: zaprawa nasienna, zaprawa nasienna + jeden zabieg ochronny, zaprawa nasienna + dwa zabiegi ochronne. Celem badań było poznanie efektów produkcyjnych – wyrażonych plonem ziarna i jego strukturą – pod wpływem zróżnicowanego poziomu nawożenia azotem (czynnik plonotwórczy) i ochrony przed patogenami (czynnik plonochronny). Analiza statystyczna wyników wykazała, iż na plon ziarna istotnie oddziaływały lata badań, nawożenie azotem, ochrona przeciwgrzybowa oraz interakcja czynników pierwszego i drugiego rzędu. Na elementy struktury plonu istotny wpływ miały lata badań (masa 1000 ziarn, liczba kłosów na m), nawożenie azotem (masa 1000 ziarn, liczba ziarn w kłosie), ochrona przeciwgrzybowa (masa 1000 ziarn, masa ziarna z kłosa). Z zastosowanego w doświadczeniu rachunku regresji wynika, iż optymalna dawka azotu dla pszenżyta odmiany „Gniewko” kształtuje się na poziomie 145 kg N·ha⁻¹. We wszystkich latach badań najwyższy plon otrzymano z obiektów z pełną ochroną przeciwgrzybową.

• Wydawca: -
• Czasopismo: Polish Journal of Natural Sciences
• Rocznik: 2015
• Tom: 30
• Numer: 4
• Opis fizyczny: p.337-348,fig.,ref.

Twórcy

autor

Bielski S.

• Departament of Agrotechnology, Agricultural Production Management and Agribusiness, University of Warmia and Mazury in Olsztyn, Oczapowskiego 8, 10-719 Olsztyn, Poland

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