Potassium: A Vital Macronutrient in Potato Production—A Review

• DOI: 10.3390/agronomy11030543
• Publication Date: 2021-03-15T02:13:10Z
• Authors: Shahram Torabian; Salar Farhangi-Abriz; Ruijun Qin; Christos Noulas; Vidyasagar Sathuv...; Brian Charlton; Dimitra A. Loka
• Keywords: Potash; Potassium sulfate; Soil texture; Growing season; Petiole (insect anatomy)

Potassium (K) is a primary macronutrient for overall plant growth, yield potential, product quality and stress resistance of crops. Potato (Solanum tuberosum L.) crops require high amount potassium to achieve the ideal quality. Therefore, determination optimum K rate efficient source potato necessary because affects crop physiological processes, dry matter production, cooking, processing requirements. Through modeling on pooled data extracted from 62 studies, highest tuber yields might be obtained at an exchangeable soil level 200 mg kg−1 approximately, dependent pH, texture, organic matter. 48 it also revealed that application sulfate (K2SO4) chloride (KCl) rates kg ha−1 nitrate (KNO3) 100 yield, implying importance sources in production. However, these values (either content, or fertilizer rates) not applicable specific growing environment variety. It seems there no discrimination among split, pre-plant in-season K, although fertilization trustworthy strategy economic yield. Owing luxury consumption by crop, combination factors, including level, petiole concentration, removal amount, conditions, management practices, climatic variety, should considered order make rational recommendations.