By methods of field trials and randomized blocks design,the influences of amount of panicle fertilizer application on lodging resistance and yield of hybrid rice‘Huiliangyou 2115’by throwing cultivation had been studied.The results indicated that amount of nitrogen fertilizer application had different effects on the plant height,the lodging resistance traits,the yield component and the production.The rice yield of N4 treatment was the highest.The yield increased by 3258.1 kg/hm² compared with to the CK.The increase amplitude was 40.7% and reached the extreme significant level.