The Effect of Soil and Foliar Humic Acid Applications on Yield and Some Characteristics of Potato (Solanum tuberosum L.)

Authors : Özbay Dede, Ekrem Oğurlu

Pages : 228-233

Doi:10.29278/azd.1779805

View : 45 | Download : 26

Publication Date : 2025-12-29

Article Type : Research Paper

Abstract :Objective: This study was conducted to determine the effects of different doses soil and foliar humic acid applications, on yield and certain characteristics of potatoes. Material and Method: The registered “Jelly” potato variety was used as the material in the study. Before planting, rows were created at 70 cm intervals using a fully automatic potato planting machine. Then, single tubers were planted on the ridges by hand, 30 cm apart. This study was carried out with 3 replications according to the factorial design in randomized blocks; humic acid was applied at the pre-planting from soil (0, 40, 80, 120 lt/ha) and at the pre-flowering from leaves (0 and 4000 ml/ha). Results: As a result of the research, it was determined that plant height was 97.97-112.93 cm, tuber number per hill was 6.13-7.93 tuber/hill, tuber yield per hill was 510.58-693.41 g/hill, tuber yield was 33091.8 - 41274.8 kg/ha, marketable tuber yield was 26468.2-37525.7 kg/ha, dry matter ratio was 17.65-18.54% and starch ratio was 13.86-14.46%. In addition, it was determined that the combined application of humic acid from soil and leaves had a very significant effect on plant height and main stem number, that the application of humic acid only from soil had a significant effect on tuber yield per hill, total and marketable tuber yield and that its effects on other traits examined in the study were statistically insignificant. Conclusion: The highest tuber yield (39149.3 kg/ha) and marketable tuber yield (34475.1 kg/ha) were achieved in potatoes when 120 kg/ha of humic acid was applied to the soil before planting. Based on these results, it was concluded that humic acid application has a significant effect on potato yield, but that it would be beneficial to examine its effects in different locations and on varieties from different maturity groups before making recommendations for production.
Keywords : patates, solanum tuberosum, humik asit, Solanum tuberosum L.

ORIGINAL ARTICLE URL