Y. Nasiri; F. Shekari; M. Asadi
Abstract
To study the effect of biofertilizers and zinc sulfate on some morphological and yield characteristics of summer savory (Satureja hortensis L.), an experiment was conducted as a factorial in a randomized complete block design with three replications in the research farm of the Faculty of Agriculture, ...
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To study the effect of biofertilizers and zinc sulfate on some morphological and yield characteristics of summer savory (Satureja hortensis L.), an experiment was conducted as a factorial in a randomized complete block design with three replications in the research farm of the Faculty of Agriculture, Maragheh University in 2013. Treatments included biofertilizers (1: no inoculation (control), seeds inoculated with 2: Nitroxin and 3: Super Nitro Plus) and foliar spray of plants with zinc sulfate (the concentration of 0, 2.5 and 5 per thousand). The results showed that the effect of biofertilizers and zinc sulfate on the number of branches per plant, flowering shoots dry weight per plant, wet and dry weight of aerial parts at 50% flowering stage, biological yield and essential oil yield was significant. The highest values of these traits were obtained in Super Nitro Plus and Nitroxin inoculation treatments, respectively. Plant height was also increased by applying zinc sulfate at concentrations of 2.5 and 5 per thousand compared to the control. Stem diameter reached to the maximum value under Super Nitro Plus + zinc sulfate foliar spray at a concentration of 2.5 per thousand and Nitroxin + zinc sulfate foliar spray at a concentration of 5 per thousand treatments. The treatments of zinc sulfate at a concentration of 5 per thousand + Super Nitro Plus and zinc sulfate at a concentrations of 2.5 and 5 per thousand + Nitroxin with the highest percentage of essential oil, increased the amount of summer savory essential oil by 34.5% compared to the control. In summary, the results of this study showed that Super Nitro Plus, Nitroxin, and zinc sulfate can be used to promote plant growth and increase the essential oil of summer savory.
A. Rahemi Kahrizaki; R. Rahimi; A. Gholizadeh; E. Gholamalipour Alamdari; H. Saboori; S.H. Davoodi
Abstract
In order to investigate the effects of different levels of vermicompost and nitroxin on the qualitative properties of medicinal plant marigold (Calendula officinalis L.), an experiment was conducted as factorial based on a completely randomized design with four replications in the greenhouse of Gonbad-e-Kavos ...
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In order to investigate the effects of different levels of vermicompost and nitroxin on the qualitative properties of medicinal plant marigold (Calendula officinalis L.), an experiment was conducted as factorial based on a completely randomized design with four replications in the greenhouse of Gonbad-e-Kavos University during 2014-2015. The first factor was vermicompost fertilizer treatment at six levels (0%, 10%, 20%, 40%, 70% and 100%) and the second factor was biological nitroxin fertilizer at two levels of inoculation (25 ml/kg soil) and no inoculation with nitroxin. The results of analysis of variance showed that the effects of nitroxin, vermicompost and their interaction on all traits studied were significant. However, the total phenol content was only significant in the vermicompost treatment. The results showed that the highest total phenol content, chlorophyll a, and total chlorophyll were obtained in 10% vermicompost treatment with nitroxin inoculation. The highest chlorophyll b content was related to 10% vermicompost treatment without nitroxin inoculation. The highest nitrogen content in the plant and catalase content were obtained from 100% vermicompost treatment with nitroxin inoculation, and 100% vermicompost without nitroxin inoculation, respectively. The highest amount of essential oil was obtained from 100% vermicompost treatment with nitroxin inoculation and the lowest was obtained from control treatment without nitroxin inoculation. According to the results, 100% and 70% vermicompost with nitroxin inoculation could be suggested as a suitable treatment for the production of marigold essential oil.
S. Mafakheri; B. Asghari; M. Shaltooki
Abstract
In order to investigate the effects of biological, chemical and nano-fertilizers on qualitative and quantitative factors of Lallemantia iberica (M.B.) Fischer & Meyer, an experiment was conducted under greenhouse conditions in 2016, at the research greenhouse of Imam Khomeini International University, ...
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In order to investigate the effects of biological, chemical and nano-fertilizers on qualitative and quantitative factors of Lallemantia iberica (M.B.) Fischer & Meyer, an experiment was conducted under greenhouse conditions in 2016, at the research greenhouse of Imam Khomeini International University, Qazvin, Iran. The experiment was conducted in a randomized complete block design with 9 treatments and 5 replications. Treatments included control (no fertilizer), biophosphat, nitroxin, nano fertilizer, chemical fertilizer, biophosphat×nitroxin, nitroxin×nano fertilizer, biophosphate×nano fertilizer, and biophosphat×nitroxin×nano fertilizer. Analysis of variance revealed that treatments significantly affected the plant height, fresh and dry weight, essential oil content, and essential oil constituents of dragon’s head. The maximum plant height (35gr) was obtained by applying chemical fertilizer, the highest fresh and dry weight (36.05 gr and 5.09 gr respectively) were found in the treatment with nitroxin×nano fertilizer, and the highest essential oil percentage with an average of 0.57% belonged to the biophosphate×nano fertilizer treatment. Twenty-four compounds were identified in the essential oils of L. iberica, of which the main constituents were limonene, linalool, verbenone, ß-caryophyllene, germacrene-D and β-cubeben. The highest limonene (7%) occurred with the nitroxin×biophosphate; the maximum amount of linalool (17.9%) was obtained by nitroxin×nano fertilizer; maximum percentage of verbenone (8.8%) was found in the treatment with biophosphate×nitroxin×nano fertilizer; the highest percentage of β-caryophyllene (12%) was observed with biophosphate×nano fertilizer; the highest amount of germacrene-D and β-cubeben (15% and 11.5%, respectively) in the essential oil were obtained by application of nano fertilizer. In addition, our results indicated that the combination of nano, nitroxin and biophosphate fertilizers could improve the growth and quality of dragon’s head plants.
M.T. Darzi; A. Akhani
Abstract
This research was aimed to study the effects of biofertilizer and plant density on yield and essential oil of coriander (Coriandrum sativum L.). The traits including 1000-seed weight, biological yield, seed yield, essential oil content, and essential oil yield were measured in a factorial experiment ...
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This research was aimed to study the effects of biofertilizer and plant density on yield and essential oil of coriander (Coriandrum sativum L.). The traits including 1000-seed weight, biological yield, seed yield, essential oil content, and essential oil yield were measured in a factorial experiment based on a randomized complete block design with twelve treatments and three replications. The study was conducted at the research field of Agriculture Company of Ran, Firouzkuh, Iran in 2011. The factors were nitroxin biofertilizer at four levels (non-inoculated, inoculated seeds, spraying on the plant at stem elongation stage and inoculated seeds+spraying on the plant at stem elongation stage) and plant density at three levels (12.5, 16.7 and 25 plants m-2). Results showed that the highest 1000-seed weight, biological yield, seed yield, essential oil content, and essential oil yield were obtained from nitroxin inoculation with seeds together spraying on the plant at stem elongation stage. Plant density also showed significant effects on the mentioned traits, as the highest biological yield, seed yield and essential oil yield were obtained in a density of 25 plants m-2 and the maximum essential oil content was recorded in a density of 16.7 plants m-2. According to the results of this study, two- time consumption of nitroxin biofertilizer and a density of 25 plants m-2 were identified as the most suitable treatment.
M. Nemati; M. Dahmardeh; E. Khmmari; M. Nejati
Abstract
To study the effect of biological and manure fertilizers on economic yield and quality characteristics of roselle (Hibiscus sabdariffa L.), an experiment was conducted as split plot based on a randomized complete block design with three replications at the Agricultural Research Center of Zabol University, ...
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To study the effect of biological and manure fertilizers on economic yield and quality characteristics of roselle (Hibiscus sabdariffa L.), an experiment was conducted as split plot based on a randomized complete block design with three replications at the Agricultural Research Center of Zabol University, Iran during growing season of 2012. Treatments included three manure levels; 0, 10 and 20t.h-1 and eight levels of biofertilizer including control, nitroxin, bio-sulfur, biological phosphorus, nitroxin+bio-sulfur, nitroxin+biological phosphorus, bio-sulfur+biological phosphorus, nitroxin+bio-sulfur+biological phosphorus. Different levels of manure fertilizer and biofertilizers were considered as main plots and subplots, respectively. Traits included economic yield, leaf SPAD, chlorophyll a, b, carotenoids, carbohydrates, anthocyanin, protein, potassium and phosphorus. According to the obtained results different levels of manure and bio-fertilizer treatments and their interactions on biological traits were significant. The maximum economic yield (1290kg.h-1) and protein content (841.42mg.g-1) was obtained with a combined consumption of 10 tons of manure per hectare and nitroxin. The highest amount of anthocyanins (0.45μg.g-1) and carbohydrates (1035.7μg.g-1) in sepals was obtained at 20t.h-1 manure+bio-sulfur+biological phosphorus. The use of 20t.h-1 manure and nitroxin, bio-sulfur and biological phosphorus caused an increased leaf SPAD, chlorophyll a, b, carotenoids, phosphorus and potassium as compared to control. Our results clearly showed that combined use of manure and biological fertilizers could play an important role in increasing the economic yield and quality characteristics of roselle in comparison with the separate consumption.
M. Hosseinpour; H. Habibi; M.H. Fotokian
Abstract
In order to evaluate the effect of chemical and biological nitrogen on growth and secondary metabolites production of Pimpinella anisum L., a factorial experiment was conducted based on randomized complete block design with three replications. Chemical nitrogen in three levels of 0, 60 and 120 kg/ha ...
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In order to evaluate the effect of chemical and biological nitrogen on growth and secondary metabolites production of Pimpinella anisum L., a factorial experiment was conducted based on randomized complete block design with three replications. Chemical nitrogen in three levels of 0, 60 and 120 kg/ha and biological nitrogen (nitroxin) in three levels of 0, 3 and 6 L/ha were applied as treatments. Results showed that the effect of chemical nitrogen and nitroxin on fertile ombellete/umble, seed yield, essential oil content and essential oil yield, biologic yield, harvest index seed and harvest index essential oil was significant. Means comparisons showed that the maximum (13.1) and minimum (12.2) number of ombellete/umble were respectively recorded for the treatment with 3 l/ha nitroxin and control treatment (without chemical and biological nitrogen). The highest seed yield (872.8 kg/ha) was obtained from 3 L/ha nitroxin and 60 kg/ha chemical nitrogen while the lowest seed yield (478.3 kg/ha) was obtained from control treatment. According to the results, maximum essential oil yield (115.14 kg/ha) was recorded for the treatment of 3 L/ha nitroxin and 60 kg/ha chemical nitrogen, and the minimum oil yield (55.35 kg/ha) was obtained from control treatment.
