在陇西县进行了白条党参幅宽50 cm白膜覆盖露头栽培模式密度试验。结果表明，种植株行距为5 cm ×25 cm条件下，白条党参根长26.9 cm，根直径0.83 cm，一等品率41.56%；折合产量最高，为9 370 kg/hm2。可以得出，在陇西自然生态条件下，党参50 cm地膜露头栽培最佳株行距为5 cm × 25 cm。

The experiment of outcrop cultivation density with width 50 cm white film covered of Codonopsis pilosula are studied in Longxi county. The result shows that the highest yield is 9 370 kg/hm2， the root length is 26.9 cm， root diameter is 0.83 cm and the first grade rate can reach 41.56% when the plant spacing is 5 cm×25 cm. It can be concluded that the optimum plant spacing of outcrop cultivation of with width 50 cm white film covered of Codonopsis lanceolata is 5 cm×25 cm under the natural ecological condition in West Gansu.

S567.2

国家科技惠民计划项目(1209FCMJ014)部分内容。