فرزاد مهرجو - دانشجوی کارشناسی ارشد محیط زیست، پژوهشکده علوم محیطی، دانشگاه شهید بهشتی، تهران.
مجتبی برزه کار - دانشجوی کارشناسی ارشد محیط زیست، پژوهشکده علوم محیطی، دانشگاه شهید بهشتی، تهران.
افسانه شهبازی - استادیار پژوهشکده علوم محیطی، دانشگاه شهید بهشتی، تهران.
سید حسین هاشمی - استادیار پژوهشکده علوم محیطی، دانشگاه شهید بهشتی، تهران.
الهام محمدی - دانش آموخته کارشناسی ارشد محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران، کرج

Vermicompost is one the valuable fertilizer which produced by certain species of earthworms during the process of biological degradation of organic wastes. This fertilizer is an odorless and highly nutritious and organic product with high capability of soil amendment. the proposes of the study were; the product of Vermicompost by Eisenia foetida earthworms and cow manure, the investigation of  change physicochemical and biological parameters in the vermicompost production process ,and also, the description of optimal production point for worms.The relationship between the parameters in vermicomposting correlation test using spss software version ۲۲ was used. the parameters including temperature, pH, electrical conductivity, moisture content, number cocoon and worm, cocoon and worm weight, percentage of carbon, nitrogen and phosphorus were measured in the four months of composting, The results showed that in studied conditions the number of cocoon ۷/۳ equal, weight cocoon ۷/۲ equal, the number worms of ۱/۲ equal and weight worm ۲/۰۸ was equal. EC Product ۳/۴ Ms/cm, carbon percent ۱۱/۸, the amount of phosphorus and nitrogen ۴/۱۸ g/kg and ۰/۲ g/kg, respectively. Microbial contamination due to organic waste through the digestive tract of earthworms, and analyze them dropped. Considering results, biological parameters such as the number of cocoons, weight of cocoons and the number of worms, weight of worms, in during of Composting process significantly increased. So physicochemical and biological conditions which established in this study lead to appropriate production of vermicompost and optimize the worm production.

ورمی کمپوست, کود گاوی, Eisenia foetida, پارامترهای فیزیکوشیمیایی, پارامترهای زیستی