摘要
Abstract: This study aims at investigating the potential application of plasma-activated soy waste solution in plasma agriculture-related fields. The pH value, conductivity, and nitrate concentration as a function of treating time and post-treatment time are presented. The results show that argon plasma could react with soy waste solution and enhance the nitrate concentration, which is considered beneficial for plant growth. Moreover, a small increase in acidity makes the treated solution more suitable for plant growth, which is another advantage of the plasma-activated soy waste solution. In short, plasma-activated soy waste solution could be a potential candidate for additional nitrate-enhanced sources in organic fertilizer due to its eco-friendly and low-cost characteristics. Graphic abstract: [Figure not available: see fulltext.]