Z Katedry Uprawy i Nawożenia Roślin Ogrodniczych
Akademii Rolniczej w Lublinie
Abstract. In the experiment leaf beet grown in peat substrate in non-heated plastic greenhouse was investigated. The effect of two doses nitrogen and three doses of potassium fertilizer on the yield, dry matter and vitamin C content in overground ports of plants was observed.
Key words:
leaf beet, fertilizing, nitrogen, potassium, peat
Summary
Leaf beet cv. ‘Lukullus’ was grown in peat substrates in non-heated plastic greenhouse. In the experiment effect of two doses N and three doses K on the yield, percentage dry matter content and vitamin C accumulation in overgrownd parts of plants was investigated. Furthermore nutrients content in substrates and plants leaf was determinated.
The nitrogen doses significant effected on the yield of leaf beet. With dose 1.2 g N per plant 30% higher yield was obtained, compared with 0.8 g N per plant doses.
Increasing doses of potassium fertilizer had no significant effect on the yield of plants fresh weight.
Positive influence of highest nitrogen dose and increasing potassium doses on the vitamin C content in fresh weigh of plant was observed. The highest vitamin C content – 56 mg in 100 g fresh weigh by highest N and K doses was detected.