Patates (Solanum tuberosum L.) Yetiştirilen Toprakların Verimlilik Durumu ve Potansiyel Besin Maddesi Sorunlarının Belirlenmesi

Abstract

In this research, it was aimed to determine the fertility status of potato (Solanum tuberosum L.) cultivated soils by soil analysis and to reveal potential plant nutrient problems. For this purpose, 109 soil samples were taken from agricultural land with potatoes in the provinces located in the Black Sea region of Turkey Ordu and Trabzon. Some physical (texture) and chemical soil reaction (pH), electrical conductivity (EC), lime, organic matter, total nitrogen (N), available phosphorus (P), extractable potassium (K), calcium (Ca), magnesium (Mg), boron (B), iron (Fe), copper (Cu), zinc (Zn) and manganese (Mn) properties were determined in the samples. According to the results of the research; It has been determined that predominantly (95.42%) of the soils are loamy (medium textured) soils and do not pose a problem in terms of salinity, the ratio of soils in the ideal pH range for potatoes is approximately 42.2%. Most of potato soils are less calcareous; Organic matter at 51.37%, total N at 86.24%, obtainable P at 53.22% and extractable K at 56.88% are sufficient and / or high. In research soils where extractable Ca and Mg levels are mostly at good levels; 45.87% of extractable B, 35.78% of extractable Zn and 11.93% of extractable Mn is very low / low level. Extractable Fe and Cu contents of potato cultivation soils were found to be high/sufficient. In the areas where potato cultivation is carried out in Ordu and Trabzon provinces, fertilization programs should be arranged for soil analysis and fertilization recommendations should be made by taking into account the leaf analysis.