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植物中的NPK含量%,在不同年生的普通参、边条参和西洋参之间,无显著差异。亩产百公斤干参根所吸收的三要素量,和大田作物属相同等级。但年吸收量仅为大田作物需量的1/7—1/4。幼龄参生长缓慢,前三年吸收量仅占总量的1/5左右。植株中N:P:K比例,约为7—8:1:4.8—7.0,且随年生而增大。说明吸磷量较大田作物为少,但对幼龄参意义较大。
The% NPK content in plants showed no significant difference between normal, borderline and American ginseng at different annuals. Yield per kilogram of dry ginseng root absorption of the three elements, and field crops are the same grade. However, the annual absorption is only 1 / 7-1 / 4 of that of field crops. Young Senate growth is slow, the first three years of absorption accounted for only about 1/5 of the total. Plant N: P: K ratio, about 7-8: 1: 4.8-7.0, and increases with age. This shows that the amount of P uptake is less than that of field crops, but it is more meaningful to younger senses.