تاثير سيستم هاي تغذيه گياه (شيميايي ، تلفيقي و ارگانيك ) بر كيفيت گياه دارويي رازيانه

Effect of plant nutrition systems (chemical, intermediate and organic systems) on quality of fennel (Foeniculum vulgare Mill)

Effect of soil fertilization systems on yield quality of fennel (Foeniculum vulgare Mill) a medicinal herbaceous plant was carried out in field experiment, in Alborz research center, Karaj/lran in 1996-97. The treatments were various levels of chemical fertilizers (N.P.K), used in commercial agricultural systems, different levels of manure, used in sustainable (organic) systems, mixture of different ratios of fertilize and manure and with out fertilizer and manure (control). The experiment was conducted using completely randomized block experimental design with three replications. The experiment showed that the intermediate treatment "30 tonha"1 of manure mixed with N = 80, P = 64 and K = 80 kgha-1 of chemical fertilizers" produced the highest amount of essential oil with 3.182 percent. The main essential oil components of fennel seed including anethole, fenchone, limonene and methyl cavicol were studied. The anethole as the most important component of the essential oil, in treatment "20 tonha"1 of manure mixed with N=40, P=28 and K=40 kgha¯1 of chemical fertilizers" had the highest amount and increased by 74.38%. Thus, the anethole in the above treatment comparison to the control, chemical and organic treatments, increased by 36. 10, 28.06 and 20.75 percent, respectively. Based on the results of this experiment, the intermediate soil nutrition system (fertilizer and manure) was interduce for sustainable agriculture.