Abstract
The uses of chemical fertilizers have caused soil degradation alarmingly, threatening the use of soil resource in the future. Among the efforts that were studied to replace chemical fertilizers, there’s the vermiwash, rich nutrition, simple to produce, and environment-friendly solution of plants. This attempt deals with the initial acquisition of vermiwash from vermicomposting two organic materials, coconut fiber and rice husk, using the earthworm species Eudrilus eugeniae. The result showed that the content of amino acid (0.496 mg/100 g), protein (737.607 mg/100 g) in vermiwash from rice husk was higher compared with the vermiwash from coconut fiber (amino acid: 0.393 mg/100 g, protein: 537.257 mg/100 g). The biochemical analysis of both same indicated the presence of DPPH free radical scavenging activity, IC50 = 274.72 mg/mL (vermiwash from rice husk) and IC50 = 665.76 mg/mL (vermiwash from coconut fiber). This study also showed the effectiveness of vermiwash on the germination of Vigna unguiculata subsp seeds. Maximum germination percentage (100 %), seedlings shoot length, and root length was obtained when seeds were treated with 1 % vermiwash from rice husk in 60 min.
