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W trzyletnim doświadczeniu polowym badano wpływ nawożenia potasem, sodem i magnezem (K, K + Na + 1 Mg, K + Na + 2 Mg) na zawartość i pobieranie makroskładników przez trzy odmiany buraka cukrowego (Nilla, Merlin, Kristall). Dawka potasu, niezależnie od wariantu nawozowego, wynosiła 160 kg K2O×ha-1. Dodatkowo na obiektach K + Na + 1 Mg i K + Na + 2 Mg zastosowano odpowiednio 12 kg Na + 24 kg MgO i 12...
The results of 28 exact field experiments carried out on sandy soils of private peasant farms with three potassium fertilization levels have proved that the reserve potassium content depended on the content of clay particles in soil. The summary potassium uptake by grasses cultivated without potassium fertilization depended on the content of reserve forms of this element in soil determined in 1 N...
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