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分别采用三元二次、一元二次和直线加平台等肥料效应模型,对海南省福山镇蕉园2年的“3414”试验数据进行分析。结果表明,三元二次模型模拟的最佳施肥量为:N 0.374 kg/株、P2O50.289 kg/株、K2O 0.891 kg/株;根据产量趋势特点,一元二次模型模拟的最佳施肥量为:N 0.400 kg/株、P2O50.214 kg/株、K2O 0.901 kg/株。可见三元二次模型模拟的最佳施肥量只有部分指标高于一元二次模型。综合考虑试验结果,初步确定巴西香蕉最佳施肥量为:N0.374~0.400 kg/株、P2O50.214~0.289 kg/株、K2O 0.891~0.901 kg/株。
Fertilizer effect models such as ternary quadratic, quadratic quadratic and linear plus platform were respectively used to analyze the “3414” experimental data of 2 years’ banana plantation in Fu Shan Town, Hainan Province. The results showed that the optimal fertilization rate for the quadratic quadratic model was N 0.374 kg / plant, P2O50.289 kg / plant and K2O 0.891 kg / plant. According to the yield trend characteristics, the optimal fertilization rate As follows: N 0.400 kg / plant, P2O50.214 kg / plant, K2O 0.901 kg / plant. It can be seen that the optimal fertilization rate of the ternary quadratic model is only higher than that of the quadratic model. Considering the test results, the optimum dosage of Brazilian banana was determined as follows: N0.374 ~ 0.400 kg / plant, P2O50.214 ~ 0.289 kg / plant, K2O 0.891 ~ 0.901 kg / plant.