M.T. Darzi; M.R. Haj Seyed Hadi
Abstract
In order to study the effects of organic and bio-fertilizers on some quantitative and qualitative characters of dragonhead (Dracocephalum moldavica L.), an experiment was conducted as randomized complete blocks design with eight treatments and three replications. The study was conducted in the Research ...
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In order to study the effects of organic and bio-fertilizers on some quantitative and qualitative characters of dragonhead (Dracocephalum moldavica L.), an experiment was conducted as randomized complete blocks design with eight treatments and three replications. The study was conducted in the Research Field Station of Ran Agricultural Company in Firouzkuh, 2015. The treatments were 20 t/ha manure, 10 t/ha vermicompost, biofertilizer (Nitroxin + Bio Super Phosphat), 10 t/ha manure + 5 t/ha vermicompost, 20 t/ha manure + biofertilizer, 10 t/ha vermicompost + biofertilizer, 10 t/ha manure + 5 t/ha vermicompost + biofertilizer and chemical fertilizer (NPK: 80, 70 and 80 kg/ha). The results showed that treatments had significant effects on the traits studied except plant height, so that the highest flowering shoot no./plant, flower dry weight, plant dry weight and dry flowering yield were obtained with integrated application of 10 t/ha manure and 5 t/ha vermicompost. In addition, the highest essential oil content and geraniol in the essential oil were obtained in the treatment of application of 10 t/ha vermicompost.
F. Ghanepasand; M.R. Haj Seyed Hadi
Abstract
In order to assess the effects of nitrogen fixing bacteria and manure application on yield and essential oil of black cumin (Nigella sativa L.), an experiment was carried out at the RAN Research Station in Firouzkouh in 2012. The study was conducted in a 4×4 factorial experiment, arranged in a ...
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In order to assess the effects of nitrogen fixing bacteria and manure application on yield and essential oil of black cumin (Nigella sativa L.), an experiment was carried out at the RAN Research Station in Firouzkouh in 2012. The study was conducted in a 4×4 factorial experiment, arranged in a randomized complete blocks design with three replications. The treatments consisted of 4 levels of manure (0, 2.5, 5 and 7.5 ton ha-1) and 4 levels of fixing bacteria (Control, Azotobacter, Azospirillum and Azotobacter + Azospirillum). The present results showed that the highest height (48.7 cm), essential oil percentage (0.14 %) and essential oil yield (768.31 g ha-1) were obtained after using 7.5 ton manure ha-1. While, the highest biological yield (1829.16 kg ha-1) and seed yield (556.22 kg ha-1) were obtained by 5 ton manure ha-1. Results of this investigation showed that the maximum plant height (49.61 cm), seed yield (553.41 kg ha-1), harvest index (37.71 %), biological yield (1697.21 kg ha-1) and essential oil yield (664.09 g ha-1) were obtained when Aotobacter+Azospirillum was inoculated with black cumin seeds simultaneously. Combined application of nitrogen fixing bacteria and manure could be helpful in developing of production and yield in Nigella sativa L.
M.T. Darzi; M.R. Hadjseyed Hadi; F. Rejali
Abstract
Application of Biofertilizers in a sustainable agriculture system improves sustainability of yield especially in medicinal plants production. Anise (Pimpinella anisum L.) is a medicinal plant containing essential oils especially in its seeds. In this reserach, the effects of vermicompost and phosphate ...
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Application of Biofertilizers in a sustainable agriculture system improves sustainability of yield especially in medicinal plants production. Anise (Pimpinella anisum L.) is a medicinal plant containing essential oils especially in its seeds. In this reserach, the effects of vermicompost and phosphate biofertilizer on yield and yield components in anise including plant height, number of umbels per plant, 1000 grain-weight, biological yield and seed yield were studied. The experiment was carried out at Homand research station - Iran in 2009. The factors were vermicompost (0, 5, 10 ton/ha) and phosphate biofertilizer (non-inoculated, inoculated seed and inoculated seed + spraying on soil in stem elongation). The experiment design was factorial experiment based on randomized complete blocks design with nine treatments and three replications. Mean comparison was carried out using Duncan multiple range test (P<0.05). Results showed that the highest plant height, umbel no./plant, biological yield, and seed yield were obtained from consumption of 10 ton/ha vermicompost but 1000 grain- weight were not affected by vermicompost significantly. Phosphate biofertilizer also showed significant effects on umbel no./plant, biological yield and seed yield (except plant height and 1000 grain-weight). The maximum umbel no./plant, biological yield and seed yield were obtained from two times consumption of phosphate biofertilizer. There were positive and synergistic interactions between factors like interactions between factors on biological yield. According to the results of this study, application of 10 ton/ha vermicompost and two times consumption of phosphate biofertilizer were determined as the most suitable treatments.
