Effects of different growing media and humic acid applications on plant growth, yield and quality in radish (Raphanus sativus L.)

This study was conducted to determine the effects of different growing media and different humic acid doses on plant growth parameters and quality properties in radish. In the study, 4 different growing media [Soil, Peat:Perlite (1:1), Peat:Perlite (2:1) and Peat:Perlite (3:1)] consisting of soil and mixtures of peat and perlite at different ratios were used. In the study, 0 (control), 500, 1000 and 2000 ppm doses of humic acid in liquid form named TKİ Hümas were also investigated. According to the findings obtained from the research, it was detected that Peat:Perlite (2:1) medium came to the forefront in terms of plant growth parameters and quality properties among the growing media. It was determined that humic acid applications (500, 1000 and 2000 ppm) significantly increased tuber fresh weight, tuber diameter and tuber height compared to control (0 ppm). Among the humic acid doses, the highest tuber fresh weight, tuber diameter and tuber height were obtained from 1000 ppm dose. In general, it was determined that soilless growing media and humic acid have positive effects on plant growth parameters and quality properties. When the growing media and humic acid doses are evaluated, it was concluded that especially Peat:Perlite (2:1) medium and 1000 ppm dose were more effective on plant growth and quality and could be used successfully in soilless radish cultivation in terms of agricultural sustainability and productivity