1965, Nr 17

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Wpływ różnych czynników na wartość produkcyjną obornika
(1965) Niklewski, Marian; Nowak, Wanda; Sałaciak, Antoni; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Chemii Rolnej; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Fizjologii Roślin
In the year 1957, one-year experiments were carried out on three types of soil: the sandy soil at Morzyczyn, the light soil at Lipki, and the heavy brown soil at Ostoja. The experimental plant was the potato variety - Dar. The fundamental organic manuring was the dung preserved in two ways: on dunghill and under cattle during the 45-day period. The equal 5, 6, 7, and 8 kg doses of litter for one head of cattle were used in these dungs. The full NPK fertilization was applied besides organic manuring. Highest yields were obtained at Morzyczyn, a little lower at Ostoja, on the dung carried out after 45 days with lesser doses of litter. The lowest yields were obtained at Lipki, but the dung carried out every day with the higher doses of litter was superior. Differences in the productivity of the manures are insignificant and probably depend on the period of decomposition in dunghills.