Influence of Wastes of Taro Leaf, Sugar Beet and Saw Dust on Physiochemical Parameters of Produced Vermicompost

Abstract

Climatic change and its negative impacts may consider as one of the big global challenges, and eliminate soil and water availability time by time. Adding organic fertilizers (i.e.  vermicompost) as soil amelioration may consider as one of effective approaches in order to recover soil degradation and enhance water retention in soil. Through vermicomposting, agro-wastes are converted into vermicompost that rich in humus, growth promoters (i.e. amino acids, growth hormones) and nutrients. Obtained results of this study indicated that these agro-wastes resulted in varying of physiochemical parameters and vermicompost content of amino acids and growth promoters. Whereas, adding Saw Dust (SD) to Cow dung (CD) during vermicomposting resulted in raising Organic matter and N content. Meanwhile, adding SD to Fish Sludge (FS) resulted in increment in C:N ratio and P content in vermicompost. Besides, adding Taro leaf (TL) to cow dung during vermicomposting led to increment in amino acids. In addition, adding Sugar Beet (SB) to cow dung during vermicomposting resulted in raising Abscisic acid (ABA) and gibberellins (GA3) content. Moreover, these different agro-wastes resulted in varying microbial activity and the highest activities produced when TL adding to FS during vermicomposting. Finally, these different   agro-wastes led to differing in antimicrobial activity in produced vermicompost. From the results of the study, research team concluded that there is a great potential to produce vermicompost with specific quality that may play a crucial role in combat climatic change particularly reinforce tolerant plant to drought stress.