Phosphorus dose and potassium source on yield and export quality of potato

In Bangladesh, potato (Solanum tuberosum L.) lacks optimum quality for export or processing industries. Optimum utilization of specific plant nutrients can improve quality. The experiment was conducted to evaluate the best dose(s) phosphorus in combination with potassium sources as they affect tuber consisted factors: dose(4); P1 = 200 kg ha-1 TSP @ 42.55 P; P2 220 46.81 P, P3 240 51.06 P and P4 260 55.32 (3); K1= KCl (250 @130 K), K2 KH2PO4 (452.19 K) K3 K2SO4 (288.6 K). interaction doses affected most parameters studied. highest yield (35.35 t ha-1), caned (10.35 chips (28.06 French fry (0.367 ha-1) were from P3K2, P4K2, P3K1 respectively; lowest (30.90 (5.59 (20.01 P1K3, P4K1, P1K3 respectively. dry matter (22.85%), starch (17.936%), antioxidant (630.12 Trolox μMol/100 g FW), polyphenol (92.994 GA mg/100 FW) P1K3; reducing sugar (0.1713 mg g-1 non-reducing (0.3290 P1K3. It appeared that a dose may be suitable produce potato. SAARC J. Agric., 20(2): 199-210 (2022)