施肥措施对白芷早期抽苔与产量的影响研究

为了探索减少白芷早期抽苔与提高产量的施肥方法，应用单因素随机区组试验，研究了不同施肥措施下白芷早期抽苔与产量，结果表明磷、钾肥全作底肥，白芷的早期抽苔率高、产量低；磷、钾肥一半作底肥，一半作追肥，白芷的早期抽苔率低、产量较高；氮肥平衡施用，白芷的早期抽苔率低、产量较高。

Studies on Different Methods of Fertilizer Application to Curtail Earlier Bolting for a Better Yield of Taiwan Angelica (Angelica dahurica var.formosasa)

Single factor stochastic experiments were carried out to explore the influence of different methods of fertilizer application on bolting and yield of Anagelica dahurica var. formosasa (Boiss. ) Yuan et Shan. Results showed that when the whole amount of phosphate and potassium fertilizer was used as the basal manure, rate of early bolting was high and the yield was lowered. When half phosphate and potassium fertilizer was used as the hasal manure and the other half as top dressing, early bolting was retarded with increase of yield. Rational and balanced application of nitrogenous fertilizer also curtailed earlier bolting and resulting in a higher yield.