{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{4}{c}}
\toprule
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}\\
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}\\
\midrule
Fertilizer (kg/ha)  &       1.050\sym{*}  &       1.318\sym{**} &       1.316\sym{**} &       2.222\sym{***}\\
                    &     (0.593)         &     (0.599)         &     (0.600)         &     (0.663)         \\
\addlinespace
Total labor for growing (day/ha)&      -0.210         &       2.490         &       2.504         &       9.237\sym{*}  \\
                    &     (5.114)         &     (5.195)         &     (5.193)         &     (4.826)         \\
\addlinespace
Irrigation (= 1 for yes)=1&                     &       199.9         &       199.8         &       138.1         \\
                    &                     &     (137.1)         &     (137.6)         &     (160.2)         \\
\addlinespace
Tenure (=1 for owned)=1&                     &      -434.5\sym{***}&      -431.6\sym{***}&      -85.91         \\
                    &                     &     (136.6)         &     (139.7)         &     (122.4)         \\
\addlinespace
Education of household head&                     &                     &      -3.493         &       15.08         \\
                    &                     &                     &     (20.70)         &     (17.74)         \\
\addlinespace
Age of household head&                     &                     &      -0.347         &      -3.531         \\
                    &                     &                     &     (4.366)         &     (3.849)         \\
\addlinespace
Site FE             &          No         &          No         &          No         &         Yes         \\
\addlinespace
Year FE             &          No         &          No         &          No         &         Yes         \\
\midrule
Observations        &         739         &         739         &         739         &         739         \\
R-squared           &       0.006         &       0.030         &       0.030         &       0.202         \\
\bottomrule
\multicolumn{5}{l}{\footnotesize Clustered SEs at household level. \sym{*} \(p<0.10\), \sym{**} \(p<0.05\), \sym{***} \(p<0.01\)}\\
\multicolumn{5}{l}{\footnotesize \sym{*} \(p<0.10\), \sym{**} \(p<0.05\), \sym{***} \(p<0.01\)}\\
\end{tabular}
}
