نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی سابق دکتری، گروه زراعت، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران
2 استاد، گروه زراعت، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران
3 استاد، بخش تحقیقات گیاهان دارویی و محصولات فرعی، مؤسسۀ تحقیقات جنگلها و مراتع کشور
4 دانشجوی دکتری، گروه زراعت، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
To determine the effects of biofertilizers, nitrogen and azocompost on oil yield and essential oil content of dragonhead (Dracocephalum moldavica L.), a field experiment was conducted as factorial in a randomized complete blocks design with 20 treatments and 3 replications. This study was performed at two locations during 2009-2010 on field in Tarbiat Modares University, and at the Khoy Agricultural Research Center. Treatments were consisted of two genotypes (landrace and SZK-1 cultivars), two seed inoculation (either (B1) with or without (B2) bacterial inoculation with Azotobacter + Azosprillum + pseudomonas) and five fertilization regimes (152 kg urea per hectare, F2: 114 kg urea per hectare + 85/3 tones azocompost per hectare, F3: 76 kg urea per hectare + 77/7 tones azocompost per hectare, F4: 38 kg urea per hectare + 55/11 tons azocompost per hectare and F5: 55/15 tons azocompost per hectare). F3 treatment had the highest geraniol and zhenya when genotypes were inoculated with bacterial in both regions and genotypes. Integrated treatment with 50% urea + 50% azocompost with or without bacterial inoculation in land race population, improved performance of yield and essential oil components by reducing the amount of chemical nitrogen, which could be a substitute to chemical fertilizers.
کلیدواژهها [English]