【摘要】 采用二次通用旋转组合设计,经多点田间试验及生产验证示范,建立了党参产量效益与氮、磷、钾施用量的数学模型。根据模型用电子计算机模拟寻优,得到亩产大于500kg,亩纯收益大于800元的技术方案48套。该方案的95％置信域为亩施纯氮11.03～13.09kg,五氧化二磷4.81～6.27kg,钾2.58～3.52kg。氮、磷、钾的配比为1∶0.46∶0.25。更多还原

【Abstract】 Used the binary univeral rotationary combination design, the mathematical model between the output benefit of Codonopsis pilosula and amount of N, P, K in C. pilosula culture was established by multi-choose field tests and production demostration. According to the model, 48 sets of technique schemes of yield over 500 kg/mu and benefit over 800 Yuan RMB/mu were obtained by simulating optimization of computer. The belief-areas of the schemes were fertilizing N 11.03-13.09 kg, P2O5 4.81-6.27 kg and K 2.58-3.52 kg/mu. The rate of N, P, K was 1:0.46:0.25.更多还原