Proba reintrodukcji Holcus lanatus w zbiorowiska lakowe

• Autorzy: Zielewicz W
• Języki publikacji: PL

Abstrakty

EN

The objective of the performed experiment was to determine possibilities of Holcus lanatus re-introduction into meadow communities applying the technique of overdrilling. Investigations were carried out in years 1998-1999 on some selected parts of permanent meadows extending along the Noteć River. Two experimental enclaves were marked off: meadow „A" with 10% proportion of Holcus lanatus and meadow „B" on which the above species occurred in trace amounts. Seeds of Holcus lanatus were introduced employing the overdrilling technique using, for this purpose, a Vredo drill. Seeds of Holcus lanatus, in the amount of 4 kg per hectare, were sown in late summer (18. August, 1998). The following indices were used to determine overdrilling effectiveness: number of height of Holcus lanatus seedlings and the proportion of this species in the sward. The reference point of Holcus lanatus re-introduction effectiveness was Lolium perenne, which was simultaneously introduced on complementary meadow areas. Results of the performed experiments confirmed the possibility of Holcus lanatus re-introduction into meadow communities. The effect of the applied operation was sward with the domination of Holcμs lanatus and the persistence of this grass in the sward one year after overdrilling was at the level of 22-29%. The factor limiting the introduction of Holcus lanatus is the lack of seeds of this species on the Polish market. An important point in the process of Holcus lanatus re-introduction is the determination of the date of plant emergence after overdrilling. The results of investigations, which should be treated as introductory, indicated the longer period of emergence and slower seedling growth of Holcus lanatus in comparison with Lolium perenne. These properties may be significant in reducing re-introduction effectiveness.

Słowa kluczowe

PL

reintrodukcja; klosowka welnista; trawy; laki; Holcus lanatus

• Wydawca: -
• Czasopismo: Łąkarstwo w Polsce
• Rocznik: 2003
• Tom: 06
• Opis fizyczny: s.191-200,tab.,bibliogr.

Twórcy

autor

Zielewicz W

• Akademia Rolnicza, ul.Wojska Polskiego 38/42, 60-627 Poznan

Bibliografia

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