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目的:探索板蓝根丰产优质高效栽培最佳密度。方法:采用等距回归设计,得出板蓝根最佳密度回归方程,计算最高产量合理密度及最佳经济收益。结果:获得板蓝根优化栽培最佳密度回归方程Y=663.79+16.53X-0.72X2,最高产量及收益合理密度为1.5~2.2万株/667 m2,预测鲜根产量为721.6 kg/667 m2,经济收益2 270.77元/667 m2,(R,S)-告依春含量0.335%~0.359%,质量优于中国药典标准。结论:旱作雨养农业区板蓝根高效栽培适宜密度应为1.5~2.2万株/667 m2,这一研究结果可指导该区域板蓝根丰产优质高效规范化栽培的生产实践。
Objective: To explore the best density of Banlangen high yielding high quality and efficient cultivation. Methods: Using isometric regression design, we got the optimal density regression equation of Radix isatidis and calculated the highest density and best economic yield. Results: The optimum density regression equation was obtained for optimal cultivation of Radix isatidis Y = 663.79 + 16.53X-0.72X2, with the highest yield and yield reasonable density of 1.5-22,000 / 667 m2 and the predicted fresh root yield of 721.6 kg / 667 m2. The economic benefits 2 270.77 yuan / 667 m2, (R, S) - According to the spring content of 0.335% ~ 0.359%, the quality is better than the Chinese Pharmacopoeia standards. Conclusion: The optimum density for effective cultivation of Radix isatidis in rainfed agricultural areas is 1.5-2.2 thousand / 667 m2. The results of this study can guide the production practice of high quality and efficient standardized cultivation of Radix isatidis in this region.