Liu, Ronghao, Stephen Gregg, and Axel Garcia y Garcia. “Nitrogen Use in Double Cropping Soybean With Non-Fertilized Winter Oilseed Crops”. International Journal of Agricultural and Biological Engineering 16, no. 2 (May 12, 2023): 159–164. Accessed December 26, 2025. https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/7547.