Document Type : Research Paper
Authors
1
, Former MSc Student, Department of Biosystems Engineering, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
2
Department of Biosystems Engineering, Faculty of Agriculture, University of Tabriz, Tabriz 5166614776, Iran
3
Department of Plant Breeding and Biotechnology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
10.22034/saps.2025.66203.3349
Abstract
Background and Objective:
The present research was aimed to increase the conversion efficiency of waste materials, as well as to study the effect of adding percentages of vermi-compost and compost tea to the vermicompost bed containing solid and pure cow dung, on the compost quality.
Materials and Methods: This study was carried out for five weeks with eight vermicompost treatments , each of which had a certain combination of solid cow dung (%C), vermicompost (%V) and compost tea, in the form of a split-plot design based on a completely randomized design in three replications for worm biomass and the number of cocoons, In addition, macronutrients and micronutrients, C/N ratio, EC, and pH were measured at the end of the fifth week.
Results: The results showed that during the compost production process, by adding 30% vermicompost to solid cow dung, worm biomass, cocoon number, pH, C/N, and N increased. But adding compost tea had a negative effect on the dependent variables, except for EC and K. The highest negative effect was observed in the combination of 10% compost tea with 90% solid cow dung. No significant changes in P were observed in different treatments.
Conclusion: The results indicated the positive effect of adding 30% of vermicompost to raw materials on worm biomass, cocoon number, and some macro and micronutrients present in the resulting vermicompost, and the negative effect of adding compost tea to raw materials on these variables.
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