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Wpływ Wapnowania i Nawożenia Mineralnego na Odczyn, Kwasowość Hydrolityczną, Wymienną Oraz Zawartość Glinu Wymiennego w Glebie Płowej The Effect of Liming and Mineral Fertilization on the Reaction, Hydrolitic Acidity, Exchangeable Acidity and Content of Exchangeable Aluminium in Haplic Luvisols The research was carried out on a permanen fertilised field in the area of the Rzeszów Foothills in 1998-2001 with Haplic Luvisols developed from loess. Pasture sunflower, winter wheat, potatoes and spring barley were cultivated in a 4-year cropping system. Different mineral fertilizers NPK with constant Mg fertilization and different mineral fertilization NPK with constant Mg and Ca fertilization were applied in the experiment. Liming was applied in the form of CaO (at the dose of 2.86 t Ca·ha-1). The experiment included 14 fertilizer objects, in 4 repetitions according to the random sub-blocks method. Analysis of variance (ANOVA) was applied in statistic processing for double classification: liming (A) and mineral fertilization (B) independently of liming. The tests showed that liming decreased the hydrolytic and exchangeable acidity and decreased the exchangeable Al content in the Ap (0-25 cm) and Bt (26-50 cm) horizons. Mineral fertilization without liming raised the hydrolytic acidity in the Ap and Bt horizons, and also increased the exchangeable acidity and the exchangeable Al content in the Ap horizons. The combined effect of liming and mineral fertilization decreased the exchangeable Al content in the Ap horizon.

roczniki gleboznawcze/soil science annual

The Effect of Liming and Mineral Fertilization on the Reaction, Hydrolitic Acidity, Exchangeable Acidity and Content of Exchangeable Aluminium in Haplic Luvisols