预防山杏花期冻害的方法研究

本文通过对山杏林喷施不同浓度的郑州标典防冻液、万国生物化学抗寒剂和喷施清水,以不做处理为ck,比较不同处理条件下山杏的物候、落花和坐果状况,对山杏花期冻害的预防进行研究,结果表明:(1)不同浓度的郑州标典防冻液可推迟花期1d^4d,能有效的避免晚霜危害。(2)不同浓度的万国生物化学抗寒剂可推迟花期3d^5d,落花率随着浓度的增加而降低,坐果率随浓度的增加而提高。(3)降温前连续喷施清水也可起到缓解冻寒的作用。

Through using the different concentrations of antifreeze, cold-resistant agent and clear water on armeniaca sibirica forest, and comparing the phenology, fallen petal and fruit setting of armeniaca sibirica under different processing conditions, this paper carried out a research on freezing damage prevention during the lfowering phase. The results showed that：（1）Different concentrations of antifreeze can put off lfowering for 1 day to 4 days, and can effectively avoid late frost damage. （2）Different concentrations of cold-resistant agent can delay lfowering for 3 days to 5 days, and the fallen petal rate decreased with the increase of the concentration, but the fruit-set rate increased with the increase of concentration. （3）Before cooling, continuous spraying water can have the effect of easing chill.