تاثير مصرف كودهاي بيولوژيك بر روي جذب عناصر K, P, N و عملكرد دانه در گياه دارويي رازيانه Foeniculum Vugare Mill

The effects of biofertilizers application on N, P, K assimilation and seed yield in fennel (Foeniculum vulgare Mill.)

In order to study the effects of biofertilizers on N, P, K concentrations and seed yield in fennel (Foeniculum Vulgare Mill.), an experiment was conducted at Homand Research Station in Darnavand at 2005 and 2006. The factors were mycorrhizal inoculation (inoculated and noninoculated), phosphate biofertilizer (0, 30, 60 kg/ha) and verrnicompost (0, 5, 10 ton/ha). The experiment design was factorial experiment in the base of randomized complete blocks design with eighteen treatments and three replications. Mean comparison was carried out using Duncan multiple range test (at 5% level). Results showed that the highest concentration ofN, P and K in seed and seed yield were obtained with rnycorrhiza inoculums. Phosphate biofertilizer also showed significant effects on mentioned traits as the highest N concentration in seed with consumption of60 kg/ha and maximum concentration ofP, K and seed yield with consumption of 30 kg/ha from it were obtained. The highest coneentration of N, P and K in seed and seed yield were obtained with application of 10 ton/ha verrnieompost. There were positive and synergistic interactions between factors, like interactions between mycorrhizal inoculation and phosphate biofertilizer on N concentration and phosphate biofertilizer and verrnicompost on P concentration