نوع مقاله : مقاله پژوهشی

نویسندگان

Department of Horticultural Sciences, College of Agriculture, University of Birjand, Birjand, Iran

چکیده

This study tested vermicomposting of seedless barberry pruning residues in South Khorasan, Iran, using the earthworm Eisenia fetida. Three feedstocks—leaves, a 1:1 leaf-branch mix, and branches alone—were composted for 50 days and analyzed for pH, conductivity, and macro-/micronutrients. Results showed substrate strongly influenced nutrient enrichment. Leaf vermicompost contained the highest macronutrients (N 2.76 %, K 2.99 %, Ca 1.87 %, S 0.05 %) and micronutrients (Fe 30.7 mg kg⁻¹, Zn 1.91 mg kg⁻¹, Na 6,600 mg kg⁻¹, B 18.9 mg kg⁻¹), exceeding typical garden-waste values. The leaf-branch mix was intermediate, and branches alone lowest. Phosphorus (1,135–1,645 mg kg⁻¹) varied less. Although chloride was high (>10,000 mg kg⁻¹), the findings confirm E.fetida accelerates mineralization and produces nutrient-rich vermicompost. Barberry leaves are thus an exceptional feedstock, turning pruning waste into a high-value organic fertilizer that can improve the soil fertility, reduce chemical fertilizer use, and support sustainable, circular agriculture in arid regions.

کلیدواژه‌ها

موضوعات

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