本试验采用二次通用旋转组合设计,通过计算机分析,建立了氮磷钾与大棚青椒早期产量及总产量的数学模型。初步揭示了在本试验条件下,氮磷钾对大棚青椒产量形成的影响规律及其边际效应,探讨了氮磷钾之间的交互作用。结果表明氮对青椒产量影响最大,钾最小,前期磷钾有显著的交互作用。讨论了最佳氮磷钾配比及适宜范围。 In this experiment, a quadratic common rotation combination design was adopted. Through computer analysis, the mathematical models of early yield and total yield of NPK and greenhouse peppers were established. Preliminary revealed under the experimental conditions, the impact of nitrogen, phosphorus and potassium on the yield of greenhouses greenhouse production and its marginal effects, to explore the interaction between nitrogen, phosphorus and potassium. The results showed that nitrogen had the most significant impact on the yield of green pepper, with the smallest potassium and the significant interaction of phosphorus and potassium in the early stage. Discussed the best ratio of NPK and its suitable range.