Anoop Yadav1, V K Garg. 1. Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, India.
Abstract
This paper reports the recycling of nutrients by vermicomposting of cow dung (CD), poultry droppings (PD) and food industry sludge (FIS) employing earthworms (Eisenia fetida). A total of six vermicomposting units were established and dynamics of chemical and biological parameters has been studied for 13 weeks. The waste mixture containing 50% CD+25% PD+25% FIS had better fertilizer value among studied waste combinations. At the end of experiment, vermicomposts showed decrease in pH and organic C, but increase in EC, total Kjeldhal N, total available P and total K contents. The C:N ratio of final vermicomposts also reduced to 10.7-12.7 from 22.8 to 56 in different waste combinations. The earthworms have good biomass gain and cocoon production in all vermicomposting units but CD alone and 50% CD+25% PD+25% FIS were better than other studied combinations.
This paper reports the recycling of nutrients by vermicomposting of cow dung (n class="Chemical">CD), poultry droppings (PD) and food industry sludge (FIS) employing earthworms (Eisenia fetida). A total of six vermicomposting units were established and dynamics of chemical and biological parameters has been studied for 13 weeks. The waste mixture containing 50% CD+25% PD+25% FIS had better fertilizer value among studied waste combinations. At the end of experiment, vermicomposts showed decrease in pH and organic C, but increase in EC, total Kjeldhal N, total available P and total K contents. The C:N ratio of final vermicomposts also reduced to 10.7-12.7 from 22.8 to 56 in different waste combinations. The earthworms have good biomass gain and cocoon production in all vermicomposting units but CD alone and 50% CD+25% PD+25% FIS were better than other studied combinations.
Authors: Muhammad Younas; Huasong Zou; Tasmia Laraib; Waseem Abbas; Muhammad Waqar Akhtar; Muhammad Naveed Aslam; Luqman Amrao; Shoukat Hayat; Tariq Abdul Hamid; Akhtar Hameed; Ghalib Ayaz Kachelo; Mona M Elseehy; Ahmed M El-Shehawi; Ali Tan Kee Zuan; Yunzhou Li; Muhammad Arif Journal: PLoS One Date: 2021-08-25 Impact factor: 3.752