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The effect of PDSF (plant-derived Solid), MDLF (mineral-derived liquid), and PDLF (plant-derived liquid) fulvic acids (FA) on (A) soil pH, (B) electrical conductivity, (C) soil available nutrients, and (D) soil total nutrients of dry soil from pot experiment. Error bars represent standard errors of the means (n = 4). The least significant differences (LSD0.05) are at 5% level of significance, different letter on top of each bar showing a significant difference between treatments.
