## 2 Materials and Methods
The prevailing wind direction in Ankara and its surroundings is northeast, with an average annual wind speed of 2.1 m/s. Ankara has a semi-arid climate, which is classified as BSk according to [PERSON]'s climate classification. The yearly average temperature is below 18.0 \({}^{\circ}\)C, and summer aridity is observed [44]. Ankara is classified as semi-arid (Ds2b3) according to [PERSON]'s climate classification and experiences severe summers with water deficits. It also belongs to the first-degree mesothermal category and partially resembles marine climate. Due to the increasing water demand, farmers must effectively manage and monitor the irrigation process. Conventional irrigation methods can cause over-irrigation and increase groundwater pollution by leaching chemicals and nutrients from the crop's root zone. Additionally, these methods can lead to faster depletion of freshwater resources [45]. However, drip irrigation, a more efficient method of irrigation in terms of unit water use, reduces water loss through leaching and evaporation compared to other irrigation methods [46; 47]. Drip irrigation enhances fertilization effectiveness and distributes nutrients more efficiently to the soil and plant root zones. It also reduces plant stress, shortens growth periods, and improves crop quality by providing a homogeneous yield [48]. Drip irrigation is a method used to regulate irrigation, aiming to optimize water usage, reduce energy consumption, and enhance crop quality. In the experimental area, drip irrigation was chosen as the primary method because of its efficiency and effectiveness. Irrigation practices are influenced by several factors such as crop type, evapotranspiration, growth stage, climate, effective rainfall, and soil moisture. However, weather significantly determines crop water requirements, and agronomists often use weather station data to adjust irrigation schedules, thereby improving irrigation water use efficiency [49]. This underscores the importance of accurate and timely weather data in effective irrigation scheduling, a practice that is crucial for successful capia pepper cultivation. Irrigation scheduling for the Kalecik region was planned based on climate data from the nearest meteorological station, the Esenboga Station (Table 4). Irrigation activities were carried out from May to September, with 14 applications. The net irrigation water requirement of 521.84 mm was met throughout the growing period. The quantities of irrigation water used are illustrated in Figure 1. The irrigation water amounts required and the timing and intervals of irrigation were calculated using the CROPWAT 8.0 program. In addition, soil moisture content and plant phenological observations were monitored during irrigation applications. \(\bullet\) _Plant analysis_ \begin{table}
\begin{tabular}{c c c c c c c c c c c c c c} \hline \hline
**Parameter** & **January** & **February** & **March** & **April** & **May** & **June** & **July** & **August** & **September October** & **November** & **December** & **Annual** \\ \hline
**Avg. Temp.** (\({}^{\circ}\)C) & 1.3 & 4.8 & 7.8 & 12.7 & 17.6 & 21.3 & 24.9 & 25.4 & 20.7 & 14.1 & 7.2 & 2.8 & 13.4 \\ \hline
**Highest Temp.** (\({}^{\circ}\)C) & 19.1 & 22.7 & 25 & 31.9 & 35.9 & 37.5 & 41.7 & 39.8 & 40.8 & 34.1 & 25.4 & 17.6 & 41.7 \\ \hline
**Lowest Temp.** (\({}^{\circ}\)C) & \(-\)19.3 & \(-\)13.2 & \(-\)8.4 & \(-\)3.4 & 3.4 & 6.1 & 9.6 & 11.2 & 0 & \(-\)1.9 & \(-\)9.6 & \(-\)12.9 & \(-\)19.3 \\ \hline
**Avg. Number of** & & & & & & & & & & & & & & \\
**Rainy Days (mm)** & & & & & & & & & & & & & & \\ \hline
**Monthly Avg. Total** & & & & & & & & & & & & & & \\
**Precipitation (mm)** & & & & & & & & & & & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Long-term average meteorological data for the research area—Kalecik, Ankara. In our research, in addition to investigating the effect of wastewater applications on the quantity of aromatic compounds, we also examined their impact on water-soluble dry matter, titradable acidity, pH, and total phenolic content.