Response of winter oilseed rape (Brassica napus L.) on soil applied humus preparation and foliar potassium fertilizer

• Autorzy: Szczepanek M. , Wilczewski E. , Grzybowski K.

Warianty tytułu

PL

Reakcja rzepaku ozimego (Brassica napus L.) na doglebową aplikację preparatu humusowego i dolistne nawożenie potasem

• Języki publikacji: EN

Abstrakty

EN

The study aimed to evaluate the effect of soil application of the humic preparation Humistar and/or foliar application of the potassium fertilizer Drakar on biometric features, overwintering and state of nutrition, as well as the quantity and quality of winter oilseed rape yield. This study was based on a single-factorial field experiment conducted over 2006-2009 in Chrząstowo, on mesic Typic Hapludalf soil of a granulometric composition of light loam, in a randomized block design, in four replications. The effect of the following was evaluated: Humistar (12% humic acids and 3% fulvic acids), applied pre-sowing into soil, at a rate of 40 dm³·haˉ¹ (T1); Drakar (25.7% K and 3% N), applied in autumn after formation of 6 leaves (2 dm³·haˉ¹) and in spring, at the beginning of falling petals (4 l·haˉ¹) (T2); combined application of Humistar and Drakar (T3); and the control (T4). In this study has been shown that Drakar had a positive effect on seed yield of oilseed rape. The use of this fertilizer increased the chlorophyll index in the autumn and improved overwintering in relations to the control only when the earlier application of Humistar was made. Further studies are necessary to evaluate the effect of these preparations in weak soils with low content of organic matter and nutrients.

PL

Celem badań była ocena wpływu preparatu humusowego Humistar i/lub dolistnego nawozu potasowego Drakar na cechy biometryczne, przezimowanie oraz stan odżywienia oraz wielkość i jakość plonu rzepaku ozimego. Podstawą badań było jednoczynnikowe doświadczenie polowe prowadzone w latach 2006-2009 w Chrząstowie, na glebie brunatnej właściwej, o uziarnieniu gliny lekkiej, w układzie losowanych bloków, w czterech powtórzeniach. Oceniano następujące kombinacje: Humistar (12% kwasy huminowe i 3% kwasy fulwowe) aplikowany przedsiewnie, doglebowo, w dawce 40 dm³·haˉ¹; Drakar (25.7% K i 3% N) stosowany w fazie 6 liści (2 dm³·haˉ¹) oraz na początku opadania płatków (4 l·haˉ¹); aplikację obu preparatów (Humistar + Drakar) oraz obiekt kontrolny. Wykazano, że aplikacja preparatu Drakar miała korzystny wpływ na plon nasion rzepaku. Zastosowanie tego nawozu zwiększyło indeks chlorofilu w jesieni oraz poprawiło przezimowanie w stosunku do obiektu kontrolnego tylko w przypadku wcześniejszej aplikacji preparatu Humistar. Potrzebne są dalsze badania oceny działania tych preparatów na glebach słabych, o niskiej zawartości materii organicznej i składników pokarmowych.

Słowa kluczowe

EN

plant response; winter oilseed rape; oilseed rape; Brassica napus; oil content; seed yield; overwintering; soil; humic preparation; foliar fertilization; potassium fertilizer

• Wydawca: -
• Czasopismo: Acta Scientiarum Polonorum. Agricultura
• Rocznik: 2016
• Tom: 15
• Numer: 4
• Opis fizyczny: p.85-94,ref.

Twórcy

autor

Szczepanek M.

• Department of Agrotechnology, University of Science and Technology in Bydgoszcz, Kordeckiego 20, 85-225 Bydgoszcz, Poland

autor

Wilczewski E.

• University of Science and Technology in Bydgoszcz, Bydgoszcz, Poland

autor

Grzybowski K.

• University of Science and Technology in Bydgoszcz, Bydgoszcz, Poland

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