Zhang G, Cheng H, Ding W
Institute of Medicinal Plant, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094.
Zhongguo Zhong Yao Za Zhi. 1998 Jan;23(1):17-8, 61-2.
The effects of two nitrogen forms(NO3-N and NH4-N) on American ginseng leaf blight were studied using sand culture method. The results indicated that American ginseng leaf blight caused by Alternaria panax was reduced with NO3-N, while increased with NH4-N.
采用砂培法研究了两种氮形态（硝态氮和铵态氮）对西洋参叶枯病的影响。结果表明，硝态氮可减轻由人参链格孢引起的西洋参叶枯病，而铵态氮则会加重该病。
