Wpływ nawożenia mineralnego gleby bardzo kwaśnej na stosunki makroelementów w zbożach jarych

The objective of the studies was to determine the ratios of nitrogen to remaining macroelements (N/P, N/K, N/Ca, N/Mg, N/S i N/Cl) at the flowering state of spring wheat, spring barley and oat under the conditions of differentiated fertilization of very acid soil. The study showed the ratios of N/P, N/K, N/Ca, N/S in the tested plants were the broadest on the first (largest) level of fertilization which caused the biggest yield biomass of plants. The ratios of N/P, N/K, N/Ca, N/S at the flowering state were in positive correlation with dry matter of aboveground part of cereals at the flowering state, grain crop, straw mass and number of ear. Yet tests over relationship between molar ratios of elements and yielding indexes, that the ratios were most often correlated with grain crop of tested cereals.