The study tested different combinations of nitrogen, phosphorus, and potassium fertilizers on rice growth in cold areas. They found that specific fertilizer treatments increased rice stem number and dry matter accumulation. Treatment 10 (N2 P2 K3) had the highest dry weight at maturity. Increasing nitrogen, phosphorus, and potassium led to higher rice yields, with treatment 11 (N3 P2 K2) showing the maximum yield. The best yield for Kongyu 131 was achieved with specific amounts of nitrogen, phosphate, and potash fertilizers.