To determine the effect of phosphoric-P and K-humate on pea development under drip irrigation, a field experiment on pea under drip irrigation was conducted during 2020 to assess different combinations of phosphoric acid-P (P₀, P₁ and P₂ of 0, 31 and 62 kg P ha^-1) and humate-K (K₀, K₁, K₂ and K₃ of 0, 50, 75 and 100 kg K ha^-1) given through drippers. The results demonstrated that the P₆₂K₁₀₀ treatment combination produced a high seed yield (3.66 Mg ha^-1). The most efficient treatment for seed P uptake was to fertilize green pea plants with 62 kg P and 100 kg K per hectare. P₆₂K₁₀₀ had the maximum K uptake by seeds at 52.72 Kg ha^-1. With rising K-humate and P-acid rates in low-fertility sandy soil and drip irrigation, yield of pods fresh weight increased. These results indicated that P and K interact in arid and infertile soil environments, and that employing unconventional sources enhances the growth and production of pea plants.