1964, Nr 14

Stały URI dla kolekcji

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

Przeglądaj

Przeglądaj 1964, Nr 14 wg Autor "Wyższa Szkoła Rolnicza w Szczecinie. Katedra Ogólnej Uprawy Roli i Roślin"

Teraz wyświetlane 1 - 5 z 5
  • Brak miniatury
    PozycjaOpen Access
    Porównanie działania mieszanek wieloletnich i jednorocznych na wzrost niektórych wskaźników żyzności gleby
    (1964) Laskowski, S.; Żurański, S.; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Ogólnej Uprawy Roli i Roślin; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Ogólnej Uprawy Roli i Roślin
    Field experiments carried out on light podsol soil in R.Z.D. Lipki WSR Szczecin and R.R.Z.D. in Barzkowice in the years 1960-1962 proved that: Best crops are produced in showery years by a mixture of red clover with English rye-grass and in dry years by a mixture of common birds foot trefoil with English rye-grass. These mixtures differ significantly from the others by producing a rise in the fertility indices (humus, nitrogen, CaC). Winter after-cultures cause half as much rise in the amount of organic compounds in the soil as the soil-structure-creative mixtures.
  • Miniatura
    PozycjaOpen Access
    Porównywanie zmianowań stosowanych na glebach lekkich.
    (1964) Laskowski, S.; 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 field experiments that for a period of 3 years (1960-1963) had been carried out on weak limed complete sands in R.Z.D. Lipki allow the following preliminary conclusion: 1. A direct plantation of ear (spiky) plants after ear plants successively for three or even for two years causes a fall in the yield in of the crop rotation. 2. The best rotation link appears to be: a) maize-spring wheat + kct-kct; medium b) maize-spring wheat-green field pea Worse: c) maize-spring wheat-seed field pea Worst: d) maize-green field pea-summer swede-like rape. 3. On weak soil, cultivation of field pea for fodder is economically more effective than maize for green forage.
  • 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.
  • Miniatura
    PozycjaOpen Access
    Wpływ sposobu pogłębiania orki przedzimowej na dynamikę niektórych właściwości fizyko-chemicznych gleby lekkiej i plony ziemniaków
    (1964) Laskowski, S.; Zbieć, I.; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Ogólnej Uprawy Roli i Roślin; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Ogólnej Uprawy Roli i Roślin
    A two-year experiment has shown that Subsoil Winter Ploughing, and a very deep ploughing caused a temporary improvement of the quality of the soil humus thanks to an increase of humic acids to fulvous acids ratio. Deep, deepened and very deep ploughing gives a significant rise in yield as compared with shallow ploughing. Mole ploughing on light soil did not show any positive production effects. The harrowing of the Winter Ploughing causes a deterioration of the field structure and a decrease of the potato yield. However, it has a positive effect on the actual humidity and full water capacity of the soil.
  • Miniatura
    PozycjaOpen Access
    Wpływ stanowisk w zmianowaniu na plony buraków pastewnych
    (1964) Laskowski, S.; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Ogólnej Uprawy Roli i Roślin
    Considering the results of the 3 year’s (1960-1963) field experiments carried out on noncomplete weak limed sand in R.Z.D. Lipki it may be stated that: 1. Underployghing of the remainders of the podded plant crop and stubble crop together with farm yard manure cause the preservation of effective nitrogen contents in the soil during the whole vegetative period, while after nonpapilonaceous crops the observed increase in effective contents subsides afterwards, due either to the fact that the beet make use of the availing nitrogen forms or to downwashing. 2. The best yield of fodder beet is to be expected when planted after rye with underploughed stubble crop, or after secondary maize crop that follows a winter sown mixture.