【摘要】 在大量调查研究的基础上,分析了胡萝卜特产区连作障碍的主导原因是由于多年多茬次连作引起根结线虫病的严重发生,其次是黑腐病、软腐病等病害严重发生,加之不合理的施肥配比及土壤偏碱等造成。更多还原

【Abstract】 An investigation on the factors affecting carrot production in continuous planting fields was carried out from 2001-2002.The results showed that in carrot product area the main reason affecting carrot production is serious occurrence of the nematodes.The second reason is the disease complex of the nematodes and diseases such as black rot and/or soft rot.In addition,unreasonable application of fertilizer and soil pH can also affect the carrot growing.更多还原