Wpływ systemu następstwa roślin oraz nawożenia na odczyn gleby w doświadczeniu wieloletnim

Field experiments were conducted in 1995 - 1996 at Brody Experimental Station of Poznań Agricultural University in order to investigate the influence of long-term (over 35 years) diferentiated fertilization on soil properties. The use of farmyard manure stabilized the soil pH while under mineral fertilization decreasing in soil pH was observed. Long-term liming of soil led to a growth of the phosphorus, potassium, organic carbon and total nitrogen contents in soil.