Effect of fly ash and of the product remaining after purification of waste gases on yield and chemical composition of spring rape
2000
Gregorczyk, A. (Akademia Rolnicza, Szczecin (Poland). Katedra Fizjologii Roslin)
Pot experiment with spring rape cv. Evita was carried out. The fly ash in amount of 0.3, 0.6 kg/pot and three doses of product equal with 0.5, 1.5, 3.0 g N/pot were used. The crop was harvested in the growth stage of technical maturity. Phosphorus was investigated colometricaly and sulphur nephelometricaly. The concentration of K, Ca, Mg and Fe, Mn, Cu, Pb, Ni was determined by using AAS method. No statistically significant differences were proved in the yield of seeds coming from plants from various combinations of the experiment. The application of 0.6 kg dose of ash/pot, similarly to dose of 0.5 g/pot, caused statistically significant decrease in yield of dry matter in comparison with the control object. Heavy metals content was within the limits of natural concentration of these elements
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