[目的]为解决吉林省西部土地整理后稻田养分不平衡、地力低、水稻综合生产能力弱等问题.[方法]采用氮磷钾肥“3414”完全肥效试验设计,对吉林省西部新整理土地水稻数据进行三元二次回归分析,通过数学模型得出施肥量与水稻农艺性状、产量关系,并进行模拟,选择最优模型计算最佳施肥量.[结果]最大产量施肥指标为N 207.99 kg/hm2、P2O5103.92 kg/hm2、K2O 66.10 kg/hm2.在该施肥水平下,最大产量为8 446.31kg/hm2.[结论]对产量影响最大的养分因子顺序为氮肥(N)＞磷肥(P2O5)＞钾肥(K2O).%[Objective] To resolve the problems of unbalanced nutrient, week fertility and production capacity in the west of Jilin Province after land consolidation. [ Method] Experiment of fertilizer efficiency of N - P - K compound fertilizer "3414" was conducted in rice field. The relationships of fertilization amounts with agronomic traits and yield were established by using quadratic regression analysis and the mathematical model. And then the best model was selected to calculate the optimal amount of fertilizer. [Result] The fertilization amount for the maximum yield of8446.31 kg/hm2 is 207.99 kg/hm2 N, 103.92 kg/hm2 P205, and 66.10 kg/hm2K2O. [Conclusion] The influential degree of nutri-mental factors on the yield was in the order of nitrogen (N) > phosphate (P2O5) > potash ( K2O).
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