The reliance on the same research team to design the experimental protocols, execute the treatments, and analyze the data raises concerns about potential bias and the objectivity of the findings. This dual role may have inadvertently influenced the methodological rigor and interpretation of the results, limiting the robustness of the study’s conclusions. Could the authors elaborate on what measures were implemented to ensure impartiality and validity throughout their research process?
Additionally, while the claims regarding the “synergistic effects” of coated diammonium phosphate and humic acid are conceptually intriguing, they lack sufficient empirical evidence and clearly defined metrics for validation. A more detailed explanation of how these effects were measured and quantified would significantly strengthen the study and address this critical gap.