## 3 Results  
### Nitrogen, Phosphorus, and Potassium Concentrations in the Solution  
Nitrogen, P, and K in the equilibrium solution increased with increasing addition of N, P, and K (Tables 4-6). Nitrogen in the equilibrium solution of CLB was the lowest N compared with those in B1, B2, and B3 solutions (Table 4). However, P and K in the equilibrium solutions of CLB were highest compared with those in soil, B1, B2, and B3 solutions (Tables 5 and 6). Increasing amount of CLB (B1 \(<\) B2 \(<\) B3) decreased N and K in the equilibrium solutions (Tables 4 and 6). \begin{table}
\begin{tabular}{l c c c c c c} \hline \hline \multirow{2}{*}{**Treatment**} & \multicolumn{4}{c}{**Nitrogen Remaining in the Equilibrium Solution (\(\text{\mu g mL}^{-1}\)) C\({}_{\text{e}}\)**} \\ \cline{2-7}  & **0** & **500** & **1000** & **2000** & **3000** & **4000** \\ \cline{2-7}  & \multicolumn{4}{c}{**Added N (\(\text{\mu g}\))**} \\ \hline Soil & 23.35 F a & 62.22 E a & 95.74 D a & 174.19 C a & 240.04 B a & 294.21 A b \\ CLB & 10.28 F b & 27.55 E c & 52.77 D d & 99.00 C e & 146.64 B d & 185.87 A d \\ B1 & 27.55 F a & 58.84 E a & 89.66 D b & 159.25 C b & 233.04 B b & 313.35 A a \\ B2 & 25.22 F a & 55.11 E b & 91.53 D ab & 155.04 C c & 232.10 B b & 285.34 A c \\ B3 & 25.22 F a & 54.17 E b & 79.39 D c & 147.57 C d & 217.62 B c & 289.08 A c \\ \hline \hline \end{tabular} Note: Treatment and added N rate interaction was significant at F probability level of \textless{}0.0001. Different capital letters in a row and different small letters in a column are significantly difference between means using [PERSON]’s test at P \(\leq\) 0.05.  
\end{table} 
Table 4: Added nitrogen concentration on equilibrium solution nitrogen concentration in different treatments. There was a linear relationship between N, P, and K concentrations in the equilibrium solution and N, P, and K addition (Table 7). Compared with soil alone, there was marginal N, P, and K increase in the remaining equilibrium solutions of CLB because of the relatively higher N, P, and K of CLB (Table 2). However, increasing rate of the CLB (B1 \(<\) B2 \(<\) B3) decreased the rate of N, P, and K remaining in the equilibrium solutions (Table 7). \begin{table}
\begin{tabular}{l c c c c c c} \hline \hline \multirow{2}{*}{**Treatment**} & \multicolumn{4}{c}{**Potassium Remaining in the Equilibrium Solution (ug mL-1) C\({}_{\text{e}}\)**} \\ \cline{2-7}  & **0** & **500** & **1000** & **2000** & **3000** & **4000** \\ \cline{2-7}  & \multicolumn{4}{c}{**Added K (ug)**} \\ \hline Soil & 3.92 F & 45.37 E e & 85.80 D e & 109.20 C e & 268.87 B e & 362.80 A e \\ CLB & 836.33 A e & 880.33 D a & 902.67 C D a & 916.67 C a & 1052.00 B a & 1134.33 A a \\ B1 & 66.15 F d & 104.57 E d & 148.07 D d & 165.67 C d & 314.67 B d & 400.60 A d \\ B2 & 121.55 F c & 148.37 E c & 194.50 D c & 214.83 C c & 362.93 B c & 446.27A c \\ B3 & 170.17 F b & 209.47 E b & 243.00 D b & 268.80 C b & 417.40 B b & 500.07 A b \\ \hline \hline \end{tabular} Note: Treatment and added K rate interaction was significant at F probability level of \(<\)0.0001. Different capital letters in a row and different small letters in a column are significantly difference between means using Tukey’s test at P \(\leq\) 0.05.  
\end{table} 
Table 6: Added potassium concentration on equilibrium solution potassium concentration in different treatments. \begin{table}
\begin{tabular}{l c c c} \hline \hline
**Treatment** & **Regression Equation** & **R\({}^{2}\) Value** \\ \hline Soil & y = -19.377 + 0.069\% & 0.9902 ** \\ CLB & y = 69.369 + 0.051x & 0.9640 ** \\ B1 & y = -11.827 + 0.072x & 0.9958 ** \\ B2 & y = -7.338 + 0.072x & 0.9976 ** \\ B3 & y = +4.832 + 0.073x & 0.9974 ** \\ \hline \hline \multicolumn{2}{c}{**K**} \\ \hline Soil & y = -9.004 + 0.089\% & 0.9456 ** \\ CLB & y = 827.660 + 0.072x & 0.9273 ** \\ B1 & y = 55.744 + 0.082x & 0.9459 ** \\ B2 & y = 105.507 + 0.081x & 0.9456 ** \\ B3 & y = 158.210 + 0.082x & 0.9477 ** \\ \hline \hline \end{tabular} Note: ** significant at P = 0.01, * significant at P = 0.05.  
\end{table}