Supplemntal Data Biofortification ZnSB_Rev3

Inoculation with ZSB B has been demonstrated to enhance the quality of organic fertilizer, facilitate the release of organic acids and phytohormones, and boost the effectiveness and efficiency of NPK fertilizer by 25%. This improvement is evidenced by the fact that applying 75% of the recommended NPK fertilizer already achieved optimal sorghum grain yield, comparable to the yield obtained with 100% NPK fertilizer, leading to a potential 25% reduction in fertilizer costs.