سعید فیروزی Articles List

List of Articles سعید فیروزی

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1 - Fertilizer Management Using Plant Growth-Promoting Rhizobacteria in Rice Fields
هاشم امین پناه سعید فیروزی
20.1001.1.21595852.2019.9.1.7.5

A field experiment was conducted at Rice Research Station of Tonekabon, Iran, to determine the effect of seed inoculation with plant growth-promotingrhizobacteria on rice grain yield and yield components under different nitrogen (N) rates. The experimental design was a More

A field experiment was conducted at Rice Research Station of Tonekabon, Iran, to determine the effect of seed inoculation with plant growth-promotingrhizobacteria on rice grain yield and yield components under different nitrogen (N) rates. The experimental design was a Randomized Complete Block with factorial arrangement and three replicates. Factors included seed inoculation with plant growth-promoting rhizobacteria [control (un-inoculated), seed inoculation with Azospirillum lipoferum, seed inoculation with Azotobacter chroococcum, and seed inoculation with a combination of A. lipoferumand A. chroococcum] and N rates (100%, 75%, and 50% of recommended nitrogen rates, i.e. 100, 75 and 50 kg N ha-1, respectively). Results showed that the highest grain yield (7875 kg ha-1) was recorded for plants inoculated with a combination of A. lipoferumand A. chroococcum, while the lowest one was recorded for un-inoculated control plants. Moreover, rice grain yield, panicle number per m2, grain number per panicle, and 1000-grain weight increased by 9%, 9%, 18%, and 6%, respectively, as N fertilizer rate increased from 50 to 100 kg ha-1. The highest grain yield (7875 kg ha-1) was obtained when N was applied at the rate of 75 kg ha-1to seeds inoculated with a combination of A. lipoferumand A. chroococcum. Manuscript profile
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2 - The Driving and Inhibiting Factors of Mechanized Tobacco Production in Iran Using the Delphi Technique
سید میلاد سمیع زاده سعید فیروزی

Increased cost of tobacco cultivation is a major concern for its sustainable production in Iran. Therefore, the development of tobacco mechanized cultivation is a necessity. Given this, the driving and inhibiting factors of the development of mechanized tobacco cultivat More

Increased cost of tobacco cultivation is a major concern for its sustainable production in Iran. Therefore, the development of tobacco mechanized cultivation is a necessity. Given this, the driving and inhibiting factors of the development of mechanized tobacco cultivation were investigated by the Delphi technique in three rounds in Guilan Province, Iran. Nineteen experts from the Jahad Agriculture Organization of Guilan Province and the Agriculture Management Services in Rasht County and Western Guilan were selected as the research panel as recommended by the academic professors of the Guilan Province. The results were analyzed by SPSS21. In the last round, 10 superior driving and inhibiting factors were ranked based on the final experts’ consistency as the final decision. The results revealed that identification of pioneer farmers and their encouragement to mechanized tobacco cultivation and the import of the latest technologies of tobacco cultivation and their modification in accordance with regional conditions were the most important driving factors as 97.37 and 94.74% of panel experts agreed, respectively. In addition, 98.68% of experts rated insufficient research on tobacco cultivation mechanization and 96.05% of experts rated the small size of tobacco farms as the most important inhibiting factors. Accordingly, the development of supportive policies to support pioneer tobacco growers in mechanized cultivation of this industrial crop, the technical assessment for modern tobacco cultivation machinery, the reduction of imported tobacco machinery prices, and the support of research on mechanization of tobacco cultivation are some important strategies that should be considered by those involved in tobacco production in Guilan Province, Iran. Manuscript profile
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3 - Environmental Life Cycle Assessment of Olive Fruit Production under Different Orchard Size and Upon Organic and Conventional Agro-Systems
سعید فیروزی امیرحسین بازیار
20.1001.1.21595852.2020.10.3.5.4

The aim of this study was to investigate the environmental impacts of olive fruit production under different orchard size and upon organic and common agro-systems through Life Cycle Assessment (LCA) methodology in northern Iran. The data were collected using a self-made More

The aim of this study was to investigate the environmental impacts of olive fruit production under different orchard size and upon organic and common agro-systems through Life Cycle Assessment (LCA) methodology in northern Iran. The data were collected using a self-made questionnaire and face-to-face interview with 305 olive growers in the study region. Six environmental impact categories (IC) including depletion of fossil fuels, global warming, acidification, terrestrial eutrophication, depletion of phosphate and potash resources have been investigated. One tone of olive fruit was set as the functional unit (FU). Results showed that the large olive orchards (≥5ha) had the highest negative environmental impacts in all studied IC. Overall, acidification, terrestrial eutrophication, and depletion of phosphate resources have been identified as the most important environmental challenges of olive fruit production with final indices of 1.58, 2.68, and 3.12, respectively. The results also revealed that the organic olive orchards are more environmental efficient than those of conventional orchards. Substituting a certain portion of chemical fertilizers used in the large olive orchards with the biological alternatives such as farmyard manure has been suggested to provide the nutritional requirements of olive trees. A regional strategy should be also planned to move to an appropriate integrated farming system to cut down the environmental hazards of olive fruit production in large orchards in the studied region. Manuscript profile

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