The study compared different ways of fertilizing hybrid japonica rice. Farmers' usual method led to low yields because the nitrogen, phosphorus, and potassium ratio was off. Applying nitrogen early didn't match the plant's needs. The best amount of nitrogen for this rice was 180 kg/hm2, with a ratio of 1:0.500:0.667 for N:P:K. When nitrogen was split into basal, tillering, and panicle stages at 40%, 30%, and 30%, the yield was highest at 9,033.3 kg/hm2, 67.46% more than the control and 4.36% more than farmers' usual method. Fertilizer efficiency reached 40.28%, and soil dependence decreased significantly.