嘉祥县为山东省红麻生产基地,常年种植面积在3000ｈｍ2左右。1997～1999年连续三年进行了夏麻优质高产栽培技术开发,每6667ｍ2夏麻产量达250ｋｇ(熟麻)。1　合理轮作　　红麻连作后立枯病、炭疽病等发生较重,造成苗期大量死苗,中后期根结线虫危害,引起红麻早衰或枯死,造成大幅 Jiaxiang County, Shandong Province kenaf production base, perennial planting area in 3000hm2 or so. 1997-1999 for three consecutive years of high-yielding cultivation of summer high-yield technology, the yield per 66067m2 summer flax reached 250kg (cooked hemp). 1 Rational rotation kenaf crop blight, anthrax and other heavy occurrence, resulting in a large number of dead seedling seedling, root knot nematode damage in the late, causing kenaf premature or dead, resulting in substantial