1964, Nr 14

Stały URI dla kolekcji

https://hdl.handle.net/20.500.12539/2077

Przeglądaj

Przeglądaj 1964, Nr 14 wg Autor "Kurnatowska, A."

Teraz wyświetlane 1 - 1 z 1
  • Miniatura
    PozycjaOpen Access
    Wpływ różnych głębokości orki siewnej i wysokości dawek nawozów azotowych na plon żyta
    (1964) Kurnatowska, A.; Dzienia, S.; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Ogólnej Uprawy Roli i Roślin; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Ogólnej Uprawy Roli i Roślin
    The investigations endeavor to find out what optimal portion and term of applying nitrogen manures as well as what depth of ploughing are most efficient in the increase of rye yield. To that purpose not only the basic portion of nitrogen manure (10 kg in autumn and 20 kg in early spring) was applied but also a supplementary dose of nitrogen manure (30 kg and 60 kg in various phenophases of rye) was given. Ploughing was performed on a depth of 14-16 cm and 20-22 cm respectively. It was found that deep ploughing exercised only a slight effect on the rise of rye yield and that on either depth of ploughing supplementary nitrogen manuring produced a bigger increase in the rye yield than the basic nitrogen and also that a supplementary portion of 30 kg introduced 14 days after the rye had shot, appears most advisable and proves economically justified.