Zheng, Jian, Xingyun Qi, Shaohong Yang, Cong Shi, and Zhengjiang Feng. 2022. “Effects and Evaluation of Biogas Slurry Water Integrated Irrigation Technology on the Growth, Yield and Quality of Tomatoes”. International Journal of Agricultural and Biological Engineering 15 (5):123-31. https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/6901.