一直有個疑問： 據說人參隻能在同樣地方種植2次，隨後這片土地不能使用40-50年。農場有無止境的土地資源？

http://www.omafra.gov.on.ca/english/crops/hort/news/hortmatt/2014/01hrt14a2.htm

 “Furthermore, ginseng cannot be grown on the same land twice due to replant disease. Replant disease is a poorly understood issue that prevents ginseng cultivation on the same land even 40 or 50   years later because of significant soil-borne diseases in the second crop. This has resulted in a shortage of suitable land for ginseng production and increased land lease prices for ginseng. In addition, many growers have to travel long distances from their home farms to their fields, resulting in higher fuel and labour costs. ”

所有跟帖： 

• 那幾十年的老參是怎麽長的? -花椒- ♀ (0 bytes) () 08/16/2017 postreply 11:30:58

• 隻長一次。這個是指重複播種的情況下。 -Gbdjw- ♀ (115 bytes) () 08/16/2017 postreply 11:48:41

• 幾十年的參一般都是野山參，種植參一般情況都是幾年 -expertchan- ♀ (83 bytes) () 08/17/2017 postreply 01:55:16

• 西洋參隻選“處女地”種植 -expertchan- ♀ (526 bytes) () 08/17/2017 postreply 01:46:04

• 謝謝答複。我一直疑惑，農場有足夠的土地資源？ -Gbdjw- ♀ (128 bytes) () 08/17/2017 postreply 07:41:30