地膜棉枯黄萎病消长规律初探

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一棉花枯萎病我所对覆盖棉田枯萎病消长规律进行了多年的观察与试验,结果表明,覆盖田与露地相比,枯萎发病始期早,前期病情重,病害起讫时间短,总的病情轻。露地虽发病刚间较晚,但以后病势增长快,发病停止时间 Cotton Fusarium Wilt I have covered the law of the growth and decline of cotton field wilt for many years to observe and test the results show that the covered field and open field compared to early onset of early wilt, the previous serious illness, disease onset time is short, the total severity of light. Although the incidence of exposure to the ground between the late, but after the rapid growth of disease, onset stop time
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