Original ResearchPublished 1 October 2026Coupling relationships between yield traits of Ipomoea aquatica Forssk. and biogas slurry purification under varied nutrient supplementation regimesYuhuan Wu · Lanmei Liang · Linyu Xie · Xujing Guo · Wenguo Wang · Liangwei Deng · Lan Wang · Hongwei Zhang · Ting He · Peike Wu · Yunhong ZhangFrontiers in Bioengineering and Biotechnologydoi 10.3389/fbioe.2026.1927455