Biogas technology adoption is a challenge in developing countries like China. The primary objective of this study was to explore the major issues for farmers in adopting biogas plants. The sample size was identified through the snowball sampling method. A total of 51 respondents of biogas plant adopters participated in this study. The structured questionnaire was used to collect primary data through respondents. The formulated suppositions were assessed by partial least square structural equation modeling (PLS-SEM). The results indicated that all independent variables are significant and positively correlated with adopting biogas technology, reducing energy crises, and attaining cost-saving purposes. The results further indicated that the low cost and clear policy positively and significantly attract farmers to adopt biogas plants. The selected variables and their adopted moderation have a significant and positive impact on this conceptual model. The findings further indicate that major maintenance and day-to-day operations of biogas plants are expensive due to a lack of skilled operators, untrained or partially trained owners, and the unavailability of technicians. The results suggested that the government needs to plan a clear policy, provide short operation courses and technical support with skilled technicians to biogas plant owners, and launch a media campaign about maintenance to develop biogas plants.

The sustainable development of the digital economy has attracted wide attention. To ex-plore how to improve the operational performance of China's digital firms, this paper conducts an influence mechanism model to test the nonlinear effect, ...