Effects of different irrigation levels and fertigation (macro-minor-micro elements) applications on storage yield and quality of potato

While most agronomy research investigates the storage process of potato, this study investigated the effects of different irrigation levels and fertigation practices on yield and quality parameters of stored potato. A two-year (2019-2020) experiment was conducted at BUU Yenişehir İbrahim Orhan Vocational School Application Area. Physical and chemical analysis of potato tubers and by-product starch and bioethanol production processes were carried out in the food laboratory of the faculty, while dry matter and nutrient content analysis of potatoes were carried out at Bursa Food and Feed Control Research Institute. The storage of potatoes was carried out in a storage facility located in the Higher School Research Area. The highest and lowest irrigation water amounts and plant water consumption values were calculated as 600.0-150.0 mm, 680.0-170.0 mm and 640.0-154.0 mm, 721.0-170.0 mm, respectively. The highest and lowest tuber yields ranged between 57.8-9.3 t ha-1and 55.1-14.1 t ha-1, respectively. After the potato tubers were placed in storage, significant changes occurred in yield and quality parameters. It was observed that after macro nutrients, minor and micro nutrients were effective on potato yield and quality, respectively.