Potato (Solanum tuberosum L.) requires high levels of water and potassium to achieve optimal yield and quality. This is of importance for the sustainable agriculture, and therefore, it is quite concern of agronomists to define the proper irrigation level and potassium rates in potato. In this study, we tested three irrigation levels (full irrigation (I₁₀₀), 66% full irrigation (I₆₆; 33% deficit), 33% full irrigation (I₃₃; 66% deficit)), and six potassium doses (K₀:0 kg ha⁻¹ of K, K₁:40 kg ha⁻¹ of K, K₂:80 kg ha⁻¹ of K, K₃:120 kg ha⁻¹ of K, K₄:160 kg ha⁻¹ of K and K₅:200 kg ha⁻¹ of K) in Agria. The study was conducted in Niğde (Central Anatolia, Türkiye, 37°56′31.8′′N 34°38′04.2′′E) as a two-year field experiment. In the experiment, the respective values were recorded for each variable; plant height 36.0–92.0 cm, maturation period 82.0–98.0 days, number of stem per plant 3.4–4.7, number of tuber per plant 4.1–7.7, tuber yield per plant 247.1–846.2 g, marketable tuber ratio 79.4–99.4%, discarded tuber ratio 0.6–5.7%, secondary structured tuber ratio 0.0–16.6%, total tuber yield 11.8–38.7 t, dry matter 19.2–21.6%, specific gravity 1.072–1.087 g cm³, and starch 13.2–15.9%. Besides, it was determined that the optimum irrigation × potassium interaction was achieved at I₁₀₀×K₃ and I₁₀₀×K₄ in terms of plant and yield parameters, and I₃₃×K₃ and I₃₃ × K₄ in terms of tuber quality parameters. In our work, we concluded that a water need of average 590–720 mm (not including the effective rainfall amount) and potassium supply of 120–160 kg ha⁻¹ in Central Anatolia will be optimal for the potato cultivation. The findings of this study will contribute to potato cultivation practices by providing proper information about the optimal irrigation need and potassium dose.

马铃薯（Solanum tuberosum L.）需要大量的水和钾才能达到最佳产量和质量。这对于农业的可持续发展具有重要意义，因此，确定马铃薯适宜的灌溉水平和施钾量备受农学家的关注。在这项研究中，我们测试了三种灌溉水平（完全灌溉（I ₁₀₀）、66% 完全灌溉（I ₆₆；缺水 33%）、33% 完全灌溉（I ₃₃；缺水 66%））和六种钾剂量（K ₀ : 0 kg ha ^-1的 K、K ₁ : 40 kg ha ^-1的 K、K ₂ : 80 kg ha ^-1的 K、K ₃ : 120 kg ha ^-1钾、K ₄：160 kg ha ^-1钾和K ₅：200 kg ha ^-1钾）在阿格里亚。该研究在 Niğde（土耳其安纳托利亚中部，北纬 37°56′31.8″N 34°38′04.2″E）进行了为期两年的现场实验。实验中，记录每个变量各自的值；株高 36.0~92.0 cm，成熟期 82.0~98.0 天，单株茎数 3.4~4.7，单株块茎数 4.1~7.7，单株块茎产量 247.1~846.2 g，市售块茎率 79.4~99.4%，废弃块茎率0.6~5.7%，次生结构块率0.0~16.6%，块茎总产量11.8~38.7 t，干物质19.2~21.6%，比重1.072~1.087 g·cm ³和淀粉 13.2–15.9%。此外，还确定了就植株和产量参数而言，最佳灌水×钾交互作用为I ₁₀₀ ×K ₃和I ₁₀₀ ×K ₄ ，而就块茎参数而言，最佳灌溉×钾交互作用为I ₃₃ ×K ₃和I ₃₃  ×K ₄ 。质量参数。在我们的工作中，我们得出的结论是，平均需水量为590-720毫米（不包括有效降雨量），钾供应量为120-160千克公顷⁻¹安纳托利亚中部地区最适合马铃薯种植。这项研究的结果将通过提供有关最佳灌溉需求和钾剂量的正确信息，为马铃薯种植实践做出贡献。