自六十年代福建省推广矮秆品种开始，以及施肥水平的提高，纹枯病年年发生，且发生面积和危害程度呈上升趋势。1989～1991年笔者在闽北早稻田间调查，平均病情指数为13以上。发病较轻年份1995～1996年早稻生长中后期雨日少，光照充足的气候条件下抽样调查二片各100hm’的早稻田 Since the dwarf varieties were popularized in Fujian Province in the 1960s and the fertilization level was increased, sheath blight occurred annually and the area and the degree of harm were on the rise. From 1989 to 1991, the author conducted a survey in the field of early rice in northern Fujian with an average disease index of 13 or above. The incidence of mild years 1995-1996 early rice growth in the late rains, adequate light climate sampling survey two 100hm ’Waseda