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１９９１～１９９２年在田间栽培条件下，研究了氮、磷、钾三要素不同配比对莱阳沙参产量和参根生长的影响。结果表明，适当氮肥用量可提高鲜参产量，增施钾肥可获得更高产量，以施尿素４５０ｋｇ／ｈｍ２、过磷酸钙３００ｋｇ／ｈｍ２、硫酸钾９００ｋｇ／ｈｍ２的肥料配比产量最高；施尿素２２５～４５０ｋｇ／ｈｍ２，配合增施钾肥，可明显提高参根的整齐度和商品价值；较低的氮肥用量，配合增施磷钾肥，可提高沙参的根冠比，提高肥料利用率
From 1991 to 1992 under field cultivation conditions, the effects of different ratios of N, P and K on the yield and ginseng root growth of Radix Astragali were studied. The results showed that the suitable nitrogen fertilizer could increase the yield of fresh ginseng, and the higher yield could be obtained by adding potassium fertilizer. The yield of fertilizer with 450 kg / hm2 of urea, 300 kg / hm2 of superphosphate and 900 kg / hm2 of potassium sulfate was the highest. ~ 450kg / hm2, with the increase of potash fertilizer can significantly improve the uniformity of root and commodity value; lower nitrogen fertilizer amount, with the increase of phosphorus and potassium fertilizer, can improve root and shoot ratio of Radix Aconiti, improve fertilizer utilization