Research regarding chemical fertilizers influence upon the production of Herba in Hyssoppus officinalis on sandy soils
1994
Ciuciuc, E. | Marinica, A. (Statiunea Centrala de Cercetari pentru Cultura Plantelor pe Nisipuri, Dabuleni (Romania))
Hyssopus officinalis is a medicinal plant with numerous uses in medicine. Several experiments were carried out on sandy soils (at SCCCPN Dabuleni - south of Oltenia region), concerning this plant. The aim was to point the most suitable doses of chemical fertilizers to ensure high yields. Influence of nitrogen was studied, applied in doses of 0, 60, 90, 120, 150 and 180 kg N/ha, on a basal dressing of P2O5 and K2O, in following amounts: P2O5 - 60 kg/ha, K2O - 40 kg/ha and P2O5 - 80 kg/ha, K2O - 80 kg/ha. The highest yield was obtained in the variant 180 kg N/ha, 60 kg P2O5/ha and 40 kg K2O/ha. The content in volatile oil was not influenced by the factors studied, the oil production being detemined only by the yields of Herba.
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