Investigation of Agricultural Water Quality of Bursa-Nilüfer Hasanağa Dam Pond and Kütahya-Tavşanlı Adranos Stream

In terms of sectoral distribution of water used in Turkey, approximately 75% is used for irrigation purposes. Irrigation planning varies depending on water quality. In particular, the usage of poor quality water through surface irrigation increases the damage. Quality criteria and classification systems were developed for the evaluation of irrigation waters. By using of these criteria and classification systems, monitoring the water quality of Hasanağa Pond and Adranos Stream, it will be useful for regional farmers to identify problems in agricultural productivity and to take precautions against pollution. In the results of the study, in winter in Adranos Stream, cations are aligned as Mg>Ca>Na>K>B, and anions are aligned as SO4>CO3>HCO3>Cl. In summer, cations are aligned as Na>K> Mg>Ca=B, and anions are aligned as SO4>HCO3>CO3>Cl. In Hasanağa Pond in winter, cations are aligned as Ca>K>Na>Mg=B, and anions are aligned as CO3>Cl>HCO3>SO4. In summer, cations are aligned as Na>K> Mg>Ca=B, and anions are aligned as SO4>CO3>HCO3>Cl. When the results regarding water quality classification were examined, it was determined that the usage of Adranos Stream and Hasanağa Pond in agricultural irrigation poses a problem in terms of salinity. During summer and winter periods, compared to Hasanağa pond, the EC value of Adranos Stream is approximately 2 times higher. When SAR values are compared to each other, it was understood that Adranos Stream may cause problems for agricultural irrigation, especially in summer. It was understood that Hasanağa pond has more suitable and higher quality water for agricultural irrigation compared to Adranos Stream.