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The effect of biological fertilizer associated with chemical fertilizers on olive | ||
| Journal of Organic Farming of Medicinal Plants | ||
| دوره 4، شماره 1 - شماره پیاپی 2980، خرداد 2025، صفحه 44-50 اصل مقاله (392.97 K) | ||
| نوع مقاله: Original Article | ||
| نویسندگان | ||
| Reza Soleimani* 1؛ Ahmad Asgharzadeh2 | ||
| 1Soil and Water Research Department, Ilam Agricultural and Natural Resources Research and Education Center, AREEO, Ilam, Iran | ||
| 2Soil and Water Research Institute, AREEO, Ilam, Iran | ||
| چکیده | ||
| The experiment was conducted in a complete randomized design with three replications and the treatments included: 1- control, 2- biofertilizer treatment (mycorrhiza, Bacillus subtilis and Pseudomonas bacteria with amino acids), 3- chemical fertilizer treatment, and 4- combined application of chemical and biological fertilizers. The results of the investigation showed that the combined treatment of chemical and biological fertilizers had the greatest effect in the quantitative and qualitative yield of Olive. The data showed that the fruit yield in this treatment increased by 38.8% compared to the control treatment, while the chemical (CF) and biological (BF) treatments showed an increase in yield by 22.6% and 17.7%, respectively. The oil content in the combined treatment was 11.2% higher than the control, indicating a positive effect of this treatment on improving fruit quality. Analysis of leaf nutrient concentrations showed that the combined treatment caused a significant increase in the levels of nitrogen (20.3%), potassium (18.2%), calcium (17.8%), magnesium (14.3%), and zinc (14.8%) compared to the control treatment. These results indicate the promotion of plant nutrition and improved access to key nutrients that play an important role in olive growth and yield. The physical and qualitative characteristics of the fruit also showed that the combined treatment increased fruit width by 11.8%, fresh weight by 23.9%, dry weight by 22.3%, and length by 10.1% compared to the control treatment. These positive changes in fruit dimensions and weight can lead to improved marketability and commercial quality of olives. Overall, the results of this study emphasize the efficiency and effectiveness of using a combination of biological and chemical fertilizers in improving nutrition, yield, and quality of olive crops. The results of this study showed that the simultaneous use of biological and chemical fertilizers has an effective role in improving the qualitative and quantitative indicators of olive fruit. | ||
| کلیدواژه‌ها | ||
| Mycorrhizae؛ PGPR؛ Amino acid؛ biofertilizer | ||
| مراجع | ||
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