please find the final concentration of iron, nitrogen, calcium, magnesium and all nutrients (control). please solve the complete problem with steps.

\begin{tabular}{|l|l|l|l|l} & Mg & Ca & Fe & N \\ \hline Control & & & \\ \hlineCa & & & \\ \hlineMg & & & \\ \hlineFe & & \\ \hlineN & & & \\ \hline \end{tabular} \begin{tabular}{|l|l|l|l|l} & Mg & Ca & Fe & N \\ \hline Control & & & \\ \hlineCa & & & \\ \hlineMg & & & \\ \hlineFe & & \\ \hlineN & & & \\ \hline \end{tabular}