Wplyw magnezu na biologiczne wiazanie azotu w uprawach mieszanek traw z motylkowatymi.

• Autorzy: Sawicka A , Kryszak J. , Niewiadomska A.
• Języki publikacji: PL

Abstrakty

EN

On the experimental plots, five legume-grass mixtures were cultivated. The composition of these mixtures included: red clover, white clover, alfalfa, festulolium, cocksfoot, timothy grass, perennial ryegrass and Italian ryegrass in different proportions. Mixtures were fertilised with: P₂O₅ - 80 kg ha⁻¹ year⁻¹, K₂O - 100 kg ha⁻¹ year⁻¹ and 30 kg ha⁻¹ NH₄NO₃ before every regrowth. Additionally half of the plots were fertilised with MgO - 30 kg ha⁻¹ year⁻¹. Dinitrogen fixation activity and influence of magnesium on this process were measured directly in the field conditions under these mixtures with using of acetylene to ethylene reduction method (ARA). It was concluded, that nitrogen in these cultivation originating from biological fixation reached even up to 208 kg N per hectare per season. The magnesium fertilisation additionally increased dinitrogen fixation from 26 to 200% as compared it with no magnesium fertilising combinations.

Słowa kluczowe

PL

azot; nawozenie; magnez; mieszanki traw z motylkowymi; lakarstwo; Rhizobium

• Wydawca: -
• Czasopismo: Łąkarstwo w Polsce
• Rocznik: 1999
• Tom: 02
• Opis fizyczny: s.129-134,rys.,tab.,bibliogr.

Twórcy

autor

Sawicka A

• Akademia Rolnicza, ul.Wolynska 35, 60-637 Poznan

autor

Kryszak J.

autor

Niewiadomska A.

Bibliografia

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