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通过研究葡萄生理病害,落花落果病、缩果病、日灼病等,得知落花落果病目前只能通过开花前5~7天,摘心摘花、结合喷硼和加强栽培管理解决。缩果病是从葡萄果粒第一生长期的后半期到第二生长期,一般为6月上旬发生到7月上中旬停止。试验证明土壤湿度大易发病,干燥不易发病或发病较轻;此外还与光线和N肥施量和施用的时间有关。因此,除注意调节土壤水分科学施N外还要注意合理修剪,选择根系发达的砧木品种等。日灼病是在果实生长第二期后半期发生,到果实生长第三期停止发病。农艺措施最好办法是用报纸糊袋套果穗发病轻或不发病。
By studying grape physiological diseases, falling fruit disease, fruit shrinkage disease, sunburn, etc., that falling flowers can only be 5 to 7 days before flowering, topping pick flower, combined with spraying boron and strengthen the cultivation and management. The fruit shrinkage is from the second half of the first growth stage of grape fruit to the second growing stage, and generally occurs from the beginning of June to the middle of July. Experiments show that the soil moisture easily susceptible to disease, less susceptible to dry or less susceptible to disease; in addition with the amount of light and N fertilizer application and the time. Therefore, in addition to pay attention to regulating the soil moisture N fertilizer application should also pay attention to reasonable pruning, rootstock selection developed rootstock varieties. Sunburn occurs in the second half of the second phase of fruit growth and stops in the third phase of fruit growth. The best way to deal with agronomic measures is to use newspapers and magazines to produce light or non-morbid spikes.