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| Lukashyk, Pavel. |
| Cirsium arvense konnte durch wiederholte tiefergehende Stoppelbearbeitung mit nach-folgendem Anbau konkurrenzstarker Zwischenfrüchte in Verbindung mit einer konkurrenz-starken Hauptfrucht zurückgedrängt werden. Die Kontrolle der Ackerkratzdistel durch Licht- und Nährstoffkonkurrenz der Zwischenfrüchte aus Blanksaat ist unsicher. Der mehrmaligen Stoppelbearbeitung ist der Vorzug gegenüber einmaliger Bearbeitung mit nachfolgender Zwischenfrucht zu geben, die sich bei mäßiger Entwicklung als nicht hinreichend konkurrenz-kräftig erweist. Die Art der Stoppelbearbeitung - breitschneidender Schargrubber bzw. Schälpflug - zeigte keine signifikanten Unterschiede hinsichtlich der Kontrollwirkung auf die Ackerkratzdistel. Dreimalige sukzessiv tiefergehende... |
| Tipo: Thesis |
Palavras-chave: Weed management; Soil tillage. |
| Ano: 2005 |
URL: http://orgprints.org/6295/1/Inhaltsverzeichnis.rtf |
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| Lukashyk, Pavel; Koepke, Ulrich. |
| Combinations of three different direct methods for controlling Vicia hirsuta (kainite application, flame weeding and harrowing) were investigated in field experiments. They were based on different strategies at early growth stages of V. hirsuta and standardised harrowing at late growth stages. The highest efficacy of kainite application and flame weeding was achieved at the one leaf stage of V. hirsuta. Winter wheat regeneration from damage caused by both kainite and thermal control was satisfactory when treatments were applied at early growth stages (GS 23). Vicia hirsuta plants that survived kainite application or flame weeding were successfully controlled by repeated harrowing at later crop growth stages; crop growth was not affected. Seed production of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds. |
| Ano: 2005 |
URL: http://orgprints.org/4414/4/4414%2DLukashyk_Koepke_combination_4p_revised%2Ded.pdf |
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| Lukashyk, Pavel; Koepke, Ulrich. |
| Three strategies for controlling Cirsium arvense including (1) repeated stubble tillage with subsequent forage crop cultivation, (2) repeated mowing of a grass-clover ley, and (3) forage crop cultivation following a grass-clover ley ploughed in May/June (3) were investigated in field experiments over 3 years. The development of C. arvense shoot density was regularly assessed on sub-plots with defined thistle densities. In the medium-term (9 months), treatment 1 decreased shoot density and regrowth capacity of C. arvense more effectively than a mowed grass-clover ley (2). However, after 22 months, treatments 1 and 2 resulted in a similar strong reduction of C. arvense shoot density of 95 % and 97 %, respectively. At this time, the efficacy of treatment 3... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds. |
| Ano: 2005 |
URL: http://orgprints.org/4413/4/4413%2DLukashyk_Koepke_strategies_4p_revised%2Ded.pdf |
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