ISHS Acta Horticulturae 331: WOCMAP I - Medicinal and Aromatic Plants Conference: part 3 of 4
INFLUENCE OF ORGANIC FERTILIZATION ON THE BIOMASS, YIELD AND COMPOSITION OF THE ESSENTIAL OIL OF ACHILLEA MILLEFOLIUM L. |
| Authors: | M.C. Scheffer, P. Ronzelli Junior, H.S. Koehler |
| DOI: | 10.17660/ActaHortic.1993.331.14 |
| Abstract:
A field experiment was carried out to evaluate the influence of organic fertilizer on biomass, yield and composition of the essential oil of Achillea millefolium L. The effect of organic fertilization on the chemical characteristics of the soil and on the N, P and K contents in the dry flower heads was also examined. It was verified that organic fertilization increased the production of biomass from 46.94 to 133.60 g/plant, and the yield of essential oil from .037 to .151 ml/100 g of fresh flower heads. The organic fertilization resulted a highly significant increase in the quantity of P available in the soil, from 2 to 5 ppm, but there was no influence in the contents of C, K, Ca and Mg. pH. wasn't affected too. The flower heads showed a highly significant increase of the contents of P, but there was no influence in the contents of N and K. The main compounds identified in the essential oil were alfaterpineol, delta-elemene, gama-muurolene, gama-elemene, alfa-muurolene, nerolidol and torreiol. | |
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