Bahareh parsamotlagh; Parviz Rezvani Moghaddam; Reza Ghorbani; Zabihollah Azami Sardooei
Abstract
Introduction: Roselle (Hibiscus sabdarjffaL.) is an annual or biennial plant cultivated in arid and semiarid regions. This plant is grown in parts of Africa, Asia, America and Australia. This plant is ecologically short day, self-pollinated and sensitive to cold and freezing stress. Studies conducted ...
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Introduction: Roselle (Hibiscus sabdarjffaL.) is an annual or biennial plant cultivated in arid and semiarid regions. This plant is grown in parts of Africa, Asia, America and Australia. This plant is ecologically short day, self-pollinated and sensitive to cold and freezing stress. Studies conducted on the medicinal plants in natural ecosystems suggested that using sustainable agriculture system provides the best conditions for the production of these plants, leading to maximum qualitative and quantitative yield in such conditions. In order to analyze the growth indices, leaf area index (LAI) and total dry matter (TDM) is required. Other indices were calculated from LAI and TDM. Considering the importance ofuses andresistant to droughtstress of roselle, this plant cultivate in provinces of Kerman and Fars recently. In order to evaluate the effect of organic, chemical and biological fertilizers on thermal requirements, developmental stages and some of physiological indices of roselle by irrigation levels, was conducted in Jiroft area.
Materials and Methods: In orderto evaluate the effect of organic, chemical and biological fertilizers on thermal requirements, developmental stages and some of physiological indices of roselle by irrigation levels, an experiment was conducted at Agricultural Research Farm Jiroft of Universityin2013-2014 growing season. Theexperiment was conducted as strip plot based on a randomized complete blocks design with three replications. Three irrigation regimes (100%, 80% and 60% of crop waterrequirement) were assigned ashorizontal factor and four fertilizer resources (mycorrhiza, vermicompost, cow manure and chemical fertilizer (NPK)) were allocated as vertical factor. Plant water requirement was calculated by using salinity parameters (sensitivity coefficient, salinity threshold and gradient of yield reduction), plant characteristics (height and the maximum depth of root), vegetation coefficients (first, middle and end of growth season), characteristics and duration of growth period with AGWAT software. Then, treatments of 80% and 60% of plant water requirements were determined and irrigation water per irrigation period was recorded by the water meter. As drip irrigation system with 0.001 Sq. M. were independently used for each treatment.Traits such as LAI, TDM, LAD, CGR and RGR indices and dry sepal yield were measured. All data were subjected to analysis of variance (ANOVA) using SAS 9.3 software. When F test indicated statistical significance at P< 0.01 or P < 0.05, the least significant difference (LSD) was used to separate the means.Figure drawing was done with Excel andSigmaplot Ver. 12.5
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Results and Discussion: The results indicated that roselle is short-day plant and its flowering is stimulated by nearing the short days. Fertilizer resources and irrigation water levels had not significant effect on flowering of plant. Also fertilizer resources and irrigation water levels had significant effect on LAI and TDM. The highest LAD value was found in the cow manure and vermicompost treatments. The highest CGR value was obtained from 100%, 80% and 60% respectively. Growth reduction between irrigation levels 100% and 80% was not significant. Slope decline between irrigation levels (i.e., 100% and 80%) was similar. Slope decline in control and mycorrhizal morethan vermicompost, cow manure and chemical fertilizer. Similar results also reported by Gendy et al., (2012) and Samiran et al., (2010). The results showed that the interaction of Fertilizer resource and levels irrigations on the sepal yield was significant. Sepal yield at all three levels of irrigation showed increase in the plants treated with cow manure, vermicompost and chemical compared with mycorrhizal and control treatment. The highest sepal yield (1217 kg.ha-1) was obtainedfrom100% crop water requirement cow manure treatment and the lowest sepal yield (493 kg.ha-1) was obtained at 60% crop water requirement control treatments.
Conclusion: It seems that among the different fertilizer resources, cow manure and vermicompost have a greater impact on soil water holding compared to other sources of fertilizers (mycorrhiza and chemical fertilizer) by increasing soil organic matter. The results of Growth indices analysis, growth degree days and phenology assessment indicated that the most leaf area index and dry matter was observed at flowering stage and the beginning of flowering rosellewas under the influence of photoperiod. Due to soil and climatic conditions of the study area, using cow manure or vermicompost with 80% of the irrigation water requirement, roselle plant seems appropriate.
Farima Doaei; Parviz Rezvani Moghaddam; Reza Ghorbani; Ahmad Balandary
Abstract
Introduction: In order to response to greater demand for wild medicinal plants consumption, it has been recommended that wild medicinal plants can be brought into cultivation systems. Cichorium pumilum Jacq. is an annual species of Asteraceae family, that has a long history of herbal use and is especially ...
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Introduction: In order to response to greater demand for wild medicinal plants consumption, it has been recommended that wild medicinal plants can be brought into cultivation systems. Cichorium pumilum Jacq. is an annual species of Asteraceae family, that has a long history of herbal use and is especially of great value for its tonic effects upon the liver and digestive tract. The root and the leaves of chicory are digestive, hypoglycemic, diuretic, laxative and tonic. Using chemical fertilizers can be easily lost from soils through fixation, leaching or gas emission that can lead to reduced fertilizer efficiency. The applications of organic fertilizers such as compost and vermicompost can be considered as a good management practice to increase cropping system sustainability, reducing soil erosion and improving soil physical, chemical and biological properties. Soil microorganisms have a significant role in regulating the dynamics of organic matter breakdown and the availability of plant nutrients such as nitrogen, phosphate and sulfur.
Materials and Methods: For evaluating the effects of organic, mineral and biological fertilizers on seed yield and yield components of dwarf chicory (Cichorium pumilum Jacq.), a field experiment was conducted at the Agricultural Research Station, the Ferdowsi University of Mashhad (36016/ N, 59036/ E, elevation 985 m) during growing season of 2011-2012. The experimental layout was factorial based on randomized complete block design with four replications. The experimental treatments were all combination of organic and chemical fertilizers (compost 4 t/ha, vermicompost 4 t/ha, urea fertilizer 130 kg/ha and control) and biological fertilizer (biosulfur biofertilizer + pure sulfur 100 kg/ ha and control). Before conducting the experiment, soil sample were taken from the depth of 0-30 cm, and physical and chemical characteristics of the soil and also used compost and vermicompost were determined. All fertilizer treatments were added to the soil and mixed well with the soil before sowing. In order to avoid leaching, all urea fertilizer was divided to two parts and these were used in two dates during the growth period. Cichorium pumilum Jacq seeds were hand sown in 2.5 ×4 m plots in five rows and with plant density 20 plants m−2. Before harvesting the grain, five plants were randomly selected in each plot from 2500 cm2 (50×50cm) and their characteristics and traits such as plant height, number of tiller per plant, number of branch per plant, number of inflorescence per plant, number of seed per inflorescence, number of seed per plant and seed weight were determined. For statistical analysis, analysis of variance (ANOVA) and Duncan multiple range test at 0.05 level were performed using SAS version 9.1 (SAS Institute Inc., Cary, NC, USA).
Results and Discussion: The Results indicated that studied factors and their interactions had not significant effect on morphological traits (plant height, number of tiller per plant, number of branch per plant) and on yield components of seed such as: number of seed per inflorescence, 1000-seed weight, seed weight per plant, seed yield and harvest index (HI). The results showed that organic and chemical fertilizers had significant effect on number of inflorescence per plant, number of seed per plant, biological yield (p< 0.05).The highest number of inflorescence per plant, number of seed per plant and seed weight per plant were observed in chemical fertilizer + biosulfur biofertilizer treatment. The highest seed yield (1489 kg.ha-1) obtained from compost + biosulfur biofertilizer treatment. Chemical fertilizer + biosulfur biofertilizer treatment (7576 kg.ha-1) produced the highest biological yield. It seems that because of high solubility of chemical fertilizer, nutrients are immediately available to the plants therefore, plants can use nutrients of chemical fertilizer faster than other fertilizers. Biofertilizer and organic fertilizer can improve soil properties and also through nutrient supply, improves plant growth.
Conclusion: In this study, it seems that the morphological traits (plant height, number of tiller and number of branches per plant) and yield components such as the number of seeds per inflorescence and seed weight were influenced by genetic characteristics and fertilizer treatments had little effect on mentioned traits and the plant was able with nutrient available in soil, overcome its needs. Overall in this study, results showed that the use of compost combination with biosulfur biofertilizer had positive effect on studied traits of dwarf chicory and use of them can be an effective step towards sustainable production and replacement use of chemical fertilizers.
M. Aghhavani Shajari; Parviz Rezvani Moghaddam; R. Ghorbani; Mahdi nasiri mahalati
Abstract
Introduction: Medicinal plants were one of the main natural resources of Iran from ancient times. Coriander (Coriandrum sativum L.) is from Apiaceae family that it has cultivated extensively in the world. Management and environmental factors such as nutritional management has a significant impact on ...
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Introduction: Medicinal plants were one of the main natural resources of Iran from ancient times. Coriander (Coriandrum sativum L.) is from Apiaceae family that it has cultivated extensively in the world. Management and environmental factors such as nutritional management has a significant impact on the quantity and quality of plants. Application of organic fertilizers in conventional farming systems is not common and most of the nutritional need of plants supply through chemical fertilizers for short period. Excessive and unbalanced use of fertilizers in the long period, reduce crop yield and soil biological activity, accumulation of nitrates and heavy metals, and finally cause negative environmental effects and increase the cost of production. The use of bio-fertilizers and organic matter are taken into consideration to reduce the use of chemical fertilizers and increase the quality of most crops. Stability and soil fertility through the use of organic fertilizers are important due to having most of the elements required by plants and beneficial effects on physical, chemical, biological and soil fertility. Therefore, the aim of this research was to evaluate the effects of organic, biological and chemical fertilizers on quality and quantity characteristics of coriander.
Materials and Methods: In order to study the effects of single and combined applications of organic, biological and chemical fertilizers on quantitative and qualitative characteristics of Coriander (Coriandrum sativum), an experiment was conducted based on a randomized complete block design with three replications and 12 treatments at Research Station, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran, in - 2011. Treatments included: (1) mycorrhizae (Glomus mosseae) (2) biosulfur (Thiobacillus sp.), (3) chemical fertilizer (NPK), (4) cow manure, )5( vermin compost, )6( mycorrhizae + chemical fertilizer, )7( mycorrhizae + cow manure, )8( mycorrhizae + vermicompost, )9( biosulfur + chemical fertilizer, )10( biosulfur + cow manure, )11( biosulfur + vermin compost and )12( control. Glomus mosseae was used at -2 cm depth below the seed. Chemical fertilizer, vermicompost (17 t. ha-1) and cow manure (60 t.ha-1) were used at 30 cm depth . Coriander was planted through furrow in mid-March 2010. The distance between rows was 60 cm and irrigation was done once a week. The common cultivation practices used for this plant and no pesticides or herbicides were used during the growing season. Coriander harvested in early July 2011 when the plants became yellow. Then, plant indices were measured in laboratory which included plant height, the number of lateral branch, the number of umbels per plant, the number of seed per umbels and plant, hundred seed weight, biological and economical yield, harvest index, essential oil percentage and essential oil yield. Statistical analysis of the data was performed by SAS 9.1and means comparison were compared by Duncan’s multiple range (P < 0.05).
Results and Discussion: The results showed that the highest number of lateral branch per plant (6.6) was obtained in biosulfur + cow manure treatment. Also, the highest number of umbel per plant (19) and number of umbelet per umbel (5) were observed in mycorrhizae treatment. Mycorrhizae by improving the nutritional status of plants, soil microbial community strengthening and protecting plants against pathogens increases plant growth and development. The highest number of seeds per umbel (21.6), the number of seeds per plant (366), seed yield (1468 kg,ha-1) and harvest index (55%) were obtained in mycorrhizae + chemical fertilizer treatment. Combined application of biosulfur with chemical fertilizer had a noticeable effect on 100-seed weights and biological yield indices. Ali et al., (2009) concluded that application of intermediate levels of nitrogen fertilizer and mycorrhizae increased biological yield of coriander, they reported that the use of nitrogen fertilizer will speed up the establishment of mycorrhizae. Studies showed that the combined use of chemical fertilizer and manure improved crop yield by increasing the efficiency ofnutrient absorption for plants. The highest essential oil percentage and essential oil yield were observed in mycorrhizae and mycorrhizae with chemical fertilizer treatments, respectively (0.2% and 2602 g.ha-1). Also, the essential oil yield was 7 times more in mycorrhizae+chemical fertilizer than biosulphur treatment. Combined application of cow manure and chemical fertilizer increased quality of indices of Ajowan. It seems that combined application of organic and bio fertilizers and cow manure improve soil physical and chemical properties, increase the availability of nutrients and finallyincrease the yield and quality of plants.
Conclusions: Overall, results of this experiment showed that application of biological fertilizer especially mycorrhizae had a significant effect on improving quantitative and qualitative yield of Coriander. Furthermore, the combined application of mycorrhizae with organic and chemical fertilizer had better effects than their single application.
R. Naghibi; P. Rezvani Moghaddam; A. Balandari; Reza Ghorbani
Abstract
Introduction: In recent years many farmers in Iran interested in to cultivate and produce different medicinal plants which are so important in traditional agriculture in Iran. In order to reduce the environmental impacts of using chemical inputs and also to increase the quality of plant secondary metabolite ...
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Introduction: In recent years many farmers in Iran interested in to cultivate and produce different medicinal plants which are so important in traditional agriculture in Iran. In order to reduce the environmental impacts of using chemical inputs and also to increase the quality of plant secondary metabolite components, the emphasis is on sustainable agriculture base on using of organic and biological fertilizer. Dwarf chicory (Cichorium pumilum Jacq.) is an annual plant from Asteraceae family. Dwarf chicory is classified by jacq as subspecies of the cultivated species Cichorium endeva which consumed for healing a variety of diseases such as bacterial infection, poisoning and rheumatism. The use of organic fertilizer in the form of humic acid and fulvic acid play an important role in sustainable agriculture. Humic substances can be added to the soil for improvement the crop yield. A benefit of humic acid due to its ability to complex metal ions and form aqueous complexes with micronutrients and also may form an enzymatically active complex, which can be carry on reactions that are usually assigned to the metabolic activity of living microorganisms. In additional of using organic fertilizers, the biological fertilizer like mycorrhiza fungi is a good approach in agriculture. Mycorrhizal fungi have been used to enhance the plant growth and yield of medicinal crops and to help maintain good soil health and fertility that contributes to a greater extent to a sustainable yield and good quality of the products. The present study was conducted to evaluate the effects of organic fertilizers and mycorrhizae inoculation on quantitative and qualitative characteristics of dwarf chicory (Cichorium pumilum Jacq.) in different cuttings.
Materials and Methods: The experiment was carried out in a factorial layout based on randomized complete block design with three replications at Research Station, Faculty of Agriculture, Ferdowsi University of Mashhad (59°28 E and 36°15 N ) in 2012-2013 growing season. The experimental treatments were all combination of organic fertilizers in four levels (cow manure, humic acid, fulvic acid and control) and three levels of Mycorrhiza inoculation (Glomus mosseae, Glomus intraradices and no inoculation) and The collected data were analyzed as split- plot in time based on randomized complete block design (due to having two cuttings during growing season) compared. The 12 fertilizer treatments and two cuts were considered as main and sub plots, respectively. The plots were 2.5*5 m (12.5 m2). The soil of the experimental field was silty loam with pH 8.09, contains total N (0.08 %), available P (10.25 ppm), and available K (286 ppm) with an EC of 1.26 dsm−1. The parameters measured were such as: leaf weight per plant, stem weight per plant, leaf/stem ratio, the leaf area index, fresh yield, dry matter yield and the poly phenol content. The poly phenol content was determined based on Wojdylo et al. (2007) method. The results were analyzed using SAS statistical program and MSTAT-C. The mean comparisons were performed using least significant difference (LSD) test.
Results and Discussion: The results showed that the highest (4544 kg.ha-1) and the lowest dry matter (1739 kg.ha-1) yield were obtained in second and first cut, respectively. The results indicated that inoculation with mycorrhizal species increased the leaf area index, dry matter yield and leaf weight per plant compared with control treatment. However, there was no significant difference between G. mosseae and G. intraradices in terms of former mentioned criteria. The results showed that using organic fertilizers improved leaf area index, dry matter yield and leaf weight per plant. The highest dry matter yield (3470 kg/ha), leaf area index (1.01), stem weight per plant (11.50 g) and leaf weight per plant (0.72 g) were obtained in humic acid treatment. Studied treatments and also different cutting had no significant effect on poly phenols contents of leaves. In generally, our results showed that application of biological and organic fertilizers improved the most of studied traits of dwarf chicory and G.mosseae + humic acid treatment was the best.
Conclusion: In this paper we have shown that yield contributing characters were significantly influenced by different treatment combinations of humic acid and mycorrhizal fungi and became maximum when humic acid and Glomus mossae were applied. In order to minimize contamination of the environment and sustainable agriculture, using biological and organic fertilizers can lead to reduction of chemical fertilizers application in agro ecosystems.
