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Effects of Interaction Between Slurry, Soil Conditioners and Mineral Fertilizers on the Content of Fibre Fractions in Lolium multiflorum (Lam)

Wiśniewska-Kadżajan Beata, Jankowski Kazimierz

Journal of Ecological Engineering

2020

Vol. 21, nr 4

160--167

The research was aimed at assessing the effect of complementary use of slurry with soil conditioners and the NPK fertilizers on the content of the crude fibre fractions in the biomass of Lolium multiflorum. The studies were conducted on the basis of a two-year (2016–2017) field experiment established in three replications in a completely randomized design. The impact of slurry and its interaction with soil conditioners and the NPK fertilizers was tested on the Dukat variety of Lolium multiflorum forage grass. The results demonstrated that there was no significant effect of the treatments on the content of the crude fibre and its fraction in the grass. However, the ADF and ADL fibre content varied significantly across the growing seasons. In the same growing season, the crude fibre content as well as the content of the ADL fraction varied across three Lolium multiflorum harvests.

Changes in selected chemical properties of soil under maize grown in monoculture for silage as a result of application of aftercrop, straw or natural fertilizers

Sulewska H., Ratajczak K., Niewiadomska A.

Journal of Research and Applications in Agricultural Engineering

2017

Vol. 62, nr 4

149--155

Between 2005 and 2008 in Swadzim, on the fields of the Experimental and Didactic Station Gorzyń, a department of Poznań University of Life Sciences, the two one factor trials have been carried out on two soil complexes: rye and good wheat ones. The purpose of the study was to determine changes of selected chemical properties of soils under the influence of the use of natural fertilizers, straw or winter aftercrop under maize grown for silage in monoculture. It has been shown that the use of natural fertilizers, straw and intercrops of rye with winter vetch did not cause the changes in nitrogen, phosphorus, potassium and magnesium levels measured in spring and autumn in both soil classes. The significant effect of fertilization was obtained only in the carbon content of soil class IVb.

W latach 2005-2008 w Swadzimiu, na polach Zakładu Doświadczalno-Dydaktycznego Gorzyń, należącego do Uniwersytetu Przyrodniczego w Poznaniu, przeprowadzono dwa jednoczynnikowe doświadczenia na dwóch kompleksach glebowych: żytnim i pszennym dobrym. Celem badań było określenie zmian wybranych właściwości chemicznych gleb pod wpływem stosowania nawozów naturalnych, słomy bądź poplonu ozimego pod kukurydzą uprawianą na kiszonkę w monokulturze. Wykazano, że stosowanie nawozów naturalnych, słomy oraz międzyplonu żyta z wyką ozimą nie przyczyniło się do zmian zawartości azotu, fosforu, potasu i magnezu oznaczanych wiosną i jesienią na obu klasach gleby. Istotny wpływ nawożenia uzyskano jedynie w zawartości węgla w glebie klasy IVb.