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山西晋中一带,素有在油菜收获后移栽高粱的习惯。采取这一措施,能够争取时间,充分利用土地,而且有利于高粱蹲苗,夺取高产。但近年来高粱丝黑穗病普遍发生,移栽的比直播的发病更重。据在平遥县马壁大队调查:1976年以前,高粱丝黑穗病发生较轻,直播田发病率2—3%,移栽田发病率为6—7%;1977年直播田发病率10—20%,移栽田发病率30—40%;1978—1979年的发病率,直播田上升为30—40%,移栽田则增至60—70%。
Shanxi Jinzhong area, known as the transplanted sorghum habit of rape harvest. Take this measure to gain time and make full use of land, but also conducive to sorghum Dunmiao, to win high yield. However, in recent years, sorghum head smut commonly occurs, transplanting is more serious than the incidence of live broadcast. According to the survey by the Mabi team in Pingyao County, prior to 1976, the occurrence of sorghum smut was relatively mild with the incidence of direct-seeded fields being 2-3% and the incidence of transplanted fields ranging from 6 to 7%. The incidence of direct-seeded fields in 1977 was 10- 20%, the incidence of transplanted fields 30-40%; 1978-1979 incidence of direct seeding increased 30-40%, transplanted fields increased to 60-70%.