51. Sustainable utilization and treatment of barnyard grass (Echinochloa crus-galli)weed biomass using vermitechnology
- Author
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Gupta, Renuka, Mago, Monika, and Garg, Vinod Kumar
- Abstract
The present research is an attempt to manage Barnyard grass (Echinochloa crus-galli), acommon rice weed, sustainably by vermicomposting technology. Echinochloa crus-galli(EC) biomass blended with cow dung in combination: 20:80, 40:60, 50:50, 60:40, and 80:20 with two controls 100% CD and 100% EC were vermicomposted for 63 days. Earthworms could not grow well in feedstocks having higher percentage of EC. Total Kjeldahl nitrogen, total available phosphorus and total potassium in final vermicomposts were in the range of 13.6–21.5 g kg−1, 11.8–15.9 g kg−1, and 20.1–27.6 g kg−1, respectively. Respiration rate (42–98 mgCO2kg−1VC 48 h−1) confirms vermicompost maturity and falls within the recommended limits (< 120 mgCO2kg−1VC 48 h−1). Vermicomposting process reduced the weed mass by 2.20–3.03 folds depicting its effective decomposition. It was inferred from the results that this weed can be converted into nutrient-rich manure employing vermicomposting and this process facilitating the management of E. crus-galliin a cost-effective and environmentally sustainable manner.
- Published
- 2024
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