The optimal fertilization amounts of peanut in Hongan county was studied through "3414" fertilizer trial, and establishment of regression equation of fertilization amounts and yield. Insufficient and incomplete fertilization would influence the growth and yield of peanut at different degree. The application of nitrogen, phosphorus and potassium fertilizer with rational proportion could obviously promote the growth of peanut. In medium fertility situation, the optimal amount of N, P2O5 and K2O for peanut was 108.8 kg/hm2, 116.4kg/hm2 and 131.3 kg/hm2 respectively. The analysis result would provide rational fertilization scheme for peanut cultivation and would provide scientific basis for fertilization and utilization of the soil of peanut field.%通过开展花生“3414”肥料效应试验,建立花生肥料施用量与产量的回归方程,以求出最佳施用量；结果表明,少施或缺施肥料对花生的长势和产量有不同程度的影响；合理的氮、磷、钾配比可明显促进花生生长.在中等肥力情况下,最佳施用量为N 108.8 kg/hm2、P2O5 116.4 kg/hm2、K2O 131.3 kg/hm2.分析结果能为花生栽培提供合理的施肥方案和花生田土壤的培肥与利用提供科学依据.
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