PL
W trzyletnim doświadczeniu polowym badano wpływ (KP03)n, K2HPO4 i K3P04 na plon, zawartość makroelementów oraz witaminy C i cukrów w porze, kapuście i fasoli w porównaniu z superfosfatem potrójnym danym łącznie z KCl lub K2SO4. Najwyższy plon pora uzyskano po nawożeniu (KP03)n. Forma nawozu nie miała wpływu na plon kapusty, natomiast największe działanie następcze na plon fasoli wykazały K2HP04 i K3P04.
EN
The effects of (KP03)n, K2HP04 and K3P04 on the leek, cabbage and bean yields and on content of macroelements, C vitamin and saccharides in their plants were examined in the course of a three-year-long field experiment. The results were compared with those achieved in the case of triple superphosphate applied together with KCl or K2S04. The leek yield level turned out to be the highest after fertilization with (KP03)n. Fertilization form had no effect on the cabbage yield, while K2HP04 and K3P04 had the strongest aftereffect on the bean yield.