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关于肥料和播种密度对小麦赤霉病穗腐发生的影响,过去报道很少。Muntcanv(1972)报道,过量氮和不适当的氮、磷比例会加重赤霉病。原中国农科院江苏分院(1961)报道,关于磷、钾等因素对赤霉病的影响,还未能作出肯定结论。我们于1976～1977年研究了这些因素对赤霉病穗腐的效应。本文是有关这些方面的初步结果。材料和方法采用正交试验设计,进行田间多点试验,在自然发病条件下考察N、P、K和基本密
The impact of fertilizer and seeding density on the occurrence of Fusarium head blight has rarely been reported in the past. Muntcanv (1972) reported that excess nitrogen and improper nitrogen and phosphorus ratios can increase scab. The original Chinese Academy of Agricultural Sciences branch in Jiangsu (1961) reported that the phosphorus and potassium on the impact of scab mold, but also failed to make any definitive conclusion. We studied the effects of these factors on scab rot in wheat from 1976 to 1977. This article is the initial result of these aspects. MATERIALS AND METHODS Orthogonal experiment design was used to carry out multi-point experiments in the field to investigate the relationship between N, P, K and basic density