In the years 2002–2003, in a foil tunnel, vegetation experiment in the growing of two eggplant cultivars ‘Epic F1’ and ‘Solara F1’ were carried out. Plants were grown in cylinders of 6 dm3 capacity filled with substrate which consisted of: 1) raised peat (from Lithuania), 2) pine bark + low-moor peat (v : v = 1 : 1). In the vegetation period, top-dressing with nitrogen, phosphorus and potassium was applied. Fruit harvest was carried out many times. The total fruit yield was determined. Index parts of plants were sampled for analyses in which the following values were identified: in ‘Epic’ cultivars: 1.12–3.40% N; 0.42–1.14% P; 1.80–4.81% K. In ‘Solara’ cultivars, the following values were found: 1.17–3.50% N; 0.53–1.27% P; 1.96–4.00% K, depending on the substrate and the fertilization level. Differences were found in the total yield and in the nutritional status of plants, depending on the substrate, fertilization level, cultivar and term of sampling.
Sheep wool can be a waste products of sheep husbandry. Its safe utilization evokes several serious problems. Therefore, it was of interest to check out the usefulness of wool as a fertilizer and/or substrate. The aim of the experiments reported in this paper was to evaluate the effect of the washed sheep wool used as an amendment to peat-based growing substrate on growth and yield of tomato, sweet pepper, and eggplant. The layer of wool was spread on 5 cm thick strata of substrate and covered with the same substrate at a rate of 10 g wool per 1 dm3 of substrate. Plants were grown individually in containers. It was stated that the addition of wool caused up to 33% higher yields, especially for tomato and pepper. Wool amendment caused changes in nutrients content of substrate and leaves. Thus, sheep wool can serve as a valuable and environmentally friendly fertilizer.
W latach 1992 i 1993 na terenie szkółki sadowniczej w Nowej Wsi Ełckiej przeprowadzono badania nad wpływem różnych podłoży organicznych na ukorzenianie się jednopąkowych zdrewniałych sadzonek winorośli odmiany Skarb Panonii. Zastosowano 9 kombinacji z różnymi podłożami: 4-letni kompost z osadów miejskich i kory drzew iglastych, torf torfowiska niskiego, piasek drobnoziarnisty zmieszany z torfem, 8-letnie trociny i świeże trociny, a także 8-letnie trociny zmieszane z torfem. Stwierdzono, że największą liczbę sadzonek ukorzenionych otrzymano przy użyciu 8-letnich trocin zmieszanych z piaskiem oraz piasku zmieszanego z torfem torfowiska niskiego. Nie przydatnym do ukorzeniania był słabo gliniasty drobny piasek o pH 8.1, gdyż nie uzyskano w nim ukorzenienia.
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