Researches cultivation of Hypericum perforatum L
1996
Kordana, S. | Zalecki, R. (Instytut Roslin i Przetworow Zielarskich, Poznan (Poland))
Preformed field investigations with times of sowing, rows spacing, seeds spacing and mineral fertilization demonstrated that the most advantageous period for time of sowing of Hypericum perforatum L. is autumn. The seed spacing in quantity 2-4 seeds for 1 ha and the row spacing of 30-40 cm does not cause any essential differences in the yields of raw material. The most effective fertilizer is nitrogen used with phosphorus and potassium
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