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2 Journal of Ecological Engineering

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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.

The Effect of Soil Conditioners and Weather on Lawn Appearance

Jankowski Kazimierz, Truba Milena, Malinowska Elżbieta, Wiśniewska-Kadżajan Beata

Journal of Ecological Engineering

2019

Vol. 20, nr 9

44--52

The aim of this study was to determine the suitability of lawn grasses cultivated in monoculture and fertilizated by soil conditioners to establish lawn grasses used extensively in terms of their impact on the overall aspect. The following grass species were used in the experiment: Lolium perenne, Festuca rubra and Poa pratensis. They were sown on their own, each of them at the rate of 28 g∙m-2. Another experimental factor tested in the research was soil conditioners – Substral, Humus Activ Papka, Eko-Użyźniacz, UG-max. At the end of each growing season, between 2013 and 2015, an assessment of grass was carried out. Among other things its general appearance was assessed using a 9-point rating scale. This assessment was conducted in three seasons: spring, summer, and autumn. The obtained results showed that the lawn appearance ratings varied throughout the research, both in terms of the season, the species of grass, and soil conditioners. This proves that the soil conditioner effects depend on the temperature and moisture conditions, and that there is an interaction between soil conditioners and the weather conditions affecting the grass appearance. The lawn grass species responded strongly to different weather conditions by changing their appearance in different seasons and years.