## 3. Experimental Results and Discussion
### Orthogonal Simulation Results and Analysis
#### 3.1.2 Pressure Distribution within the Pressurized Tube
Regarding the distribution uniformity coefficient, a larger coefficient indicates lower variation in the consistency of row discharge, signifying better seeding performance. Based on the comprehensive analysis of single-factor mean distribution uniformity coefficient, the largest coefficient, meaning the lowest variation in row discharge consistency, was achieved with a corrugation depth of 6 mm, corrugation width of 40 mm, corrugation count of 10, and a pressurized tube length of 1000 mm. However, considering the issue of pressure loss in the seeding system, longer pressurized tube lengths result in higher pressure losses, leading to energy wastage. An increase in corrugation depth, while increasing pressure loss, may also raise seed breakage rates, affecting seeding efficiency. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline  & **Dependent Variable** & **S** & **Mean** & **Standard Error** & \multicolumn{2}{c}{**95\% Confidence Interval**} \\ \cline{5-6}  & & & & & **Lower Limit** & **Upper Limit** \\ \cline{3-6}  & & 4 & 269.25 & 6.316 & 253.9 & 294.1 \\  & & 6 & 274.02 & 6.316 & 262.15 & 302.35 \\ Wave Depth & & 8 & 281.25 & 6.316 & 261.15 & 301.35 \\  & & 10 & 282.25 & 6.316 & 249.15 & 289.35 \\ \cline{3-6}  & & 4 & 80.63 & 0.059 & 62.17 & 96.37 \\ Distribution & 6 & 91.51 & 0.059 & 72.92 & 97.54 \\ Uniformity Coefficient & 8 & 90.27 & 0.059 & 71.55 & 99.80 \\  & & 10 & 85.56 & 0.059 & 66.83 & 98.71 \\ \hline  & **Dependent Variable** & **K** & **Mean** & **Standard Error** & \multicolumn{2}{c}{**95\% Confidence Interval**} \\ \cline{3-6}  & & 30 & 277.25 & 6.316 & 257.15 & 297.35 \\  & & 40 & 275.51 & 6.316 & 255.4 & 295.6 \\ Wave Width & & 50 & 271.75 & 6.316 & 262.15 & 302.35 \\  & & 60 & 282.25 & 6.316 & 251.65 & 291.85 \\ \cline{3-6}  & & 30 & 79.99 & 0.059 & 61.36 & 96.44 \\ Distribution & 40 & 90.15 & 0.059 & 71.50 & 99.21 \\ Uniformity Coefficient & 50 & 89.83 & 0.059 & 69.37 & 98.53 \\  & & 60 & 88.57 & 0.059 & 71.15 & 97.27 \\ \hline  & **Dependent Variable** & **N** & **Mean** & **Standard Error** & \multicolumn{2}{c}{**95\% Confidence Interval**} \\ \cline{3-6}  & & 4 & 252.25 & 6.316 & 232.15 & 272.35 \\  & & 6 & 266.5 & 6.316 & 246.4 & 286.6 \\ Wave Number & Pressure Loss & 8 & 285.75 & 6.316 & 265.65 & 305.85 \\  & & 10 & 302.25 & 6.316 & 282.15 & 322.35 \\ \cline{3-6}  & & 4 & 78.51 & 0.059 & 59.93 & 94.24 \\ Distribution & 6 & 85.72 & 0.059 & 67.17 & 96.85 \\ Uniformity Coefficient & 8 & 89.37 & 0.059 & 70.64 & 97.23 \\  & & 10 & 94.23 & 0.059 & 75.60 & 98.48 \\ \hline  & **Dependent Variable** & **L** & **Mean** & **Standard Error** & \multicolumn{2}{c}{**95\% Confidence Interval**} \\ \cline{3-6}  & & & & & **Lower Limit** & **Upper Limit** \\ \cline{3-6}  & & 700 & 232.25 & 6.316 & 212.15 & 252.35 \\ Pressure Loss & 800 & 270.25 & 6.316 & 250.15 & 290.35 \\
900 & 283.25 & 6.316 & 263.15 & 303.35 \\  & & 1000 & 321 & 6.316 & 300.9 & 341.1 \\ \hline  & & 700 & 77.62 & 0.059 & 58.93 & 96.28 \\ Distribution & 800 & 90.13 & 0.059 & 71.37 & 97.60 \\ Uniformity Coefficient & 900 & 89.30 & 0.059 & 70.62 & 99.34 \\  & & 1000 & 91.07 & 0.059 & 72.37 & 99.61 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Single-factor mean analysis. Through orthogonal experiments, the optimal parameter combination was determined to be a pressurized tube length of 800 mm, corrugation depth of 8 mm, corrugation count of 6, and corrugation width of 50 mm.