Nitrogen nutrition of Panax quinquefolium Linne was studied by using 15N tracer technique.

通过15N示踪微区试验，研究了西洋参氮素营养特性。

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The results showed that 15N (15N-urea) was distributed to all organs of Panax quinquefolium Linne. NDFF% in above-ground part was higher than that in below-ground part.

结果表明：15N-尿素在西洋参各器官均有分布，参株从肥料中吸收氮素（NDFF％）含量地上部各器官高于地下部。

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Linne did not identify the supplier or suppliers that provided the produce to retailers.

CNN: STORY HIGHLIGHTS

Dr Linne said many women expected to lose their excess weight after giving birth, particularly as a result of breastfeeding.

BBC: NEWS | Health | Pregnant women weight warning

Dr Yvonne Linne, one of those involved in the study, told the Congress in Prague that women who put on between 12kg and 14kg during pregnancy fared best.

BBC: NEWS | Health | Pregnant women weight warning