Yield and Essential Oil of Sweet Basil Affected by Chemical and Biological Fertilizers

This study was carried out to describe detailed growth and chemical investigation of sweet basil essential oil affected by chemical and biological fertilizations. The various fresh and dry weights of herb in general changed under the various NPK fertilization+biological fertilization levels. The highest fresh and dry weights of herb (g plant–1 and t ha–1) were recoded with NPK (75%)+biological fertilizers treatment during the second harvest with the values of 721.2, 49.8 and 79.4, 4.4, respectively. The highest essential oil contents (0.4%, 0.7 mL plant–1and 57.9 L ha–1) were recorded at NPK (75%)+biological fertilizers treatment during the first harvest compared with other treatments. The highest amount of linalool and estragole were resulted from the NPK (75%) and NPK (50%)+biological fertilization treatment with the values of 51.2, 27.7; 48.2, 24.1; 54.4, 24.1% during first, second and third harvests, respectively. Essential oil constituents belong to two chemical main classes. Oxygenated Monoterpenes (OM) was the major one, the remaining fractions as Monoterpene Hydrocarbons (MH) formed the minor class. The highest amount of OM were obtained from NPK (75%)+biological fertilization treatment with the values of 89.1, 87.7 and 90.3% during first, second and third harvests, respectively.
Source: Research Journal of Medicinal Plant - Category: Complementary Medicine Source Type: research