In the intensive pig production Ball - Junior Tops - Jacket in the state of Yucatan, 62 biodigesters were installed in the last 10 years.However, the complexities of the anaerobic biodigestion enclose difficulties to reach the expected efficiency.The objective of the present study was to determine the removal efficiency of the organic matter in pig
External supply risk of agricultural products trade along the Belt and Road under the background of COVID-19
Agricultural product trade along the Belt and Road (B&R) is an important part of the international food Welding Tractors security system, the vulnerabilities of which have been highlighted by the recent COVID-19 pandemic.Based on the complex network analysis, this study analyzes the characteristics of agricultural products trade network along t