春季果树花期或幼果期,气温忽高忽低,经常发生晚霜现象,此时果树已进入生长期,果树的器官会遭受不同程度的冻害,特别是对开花早的杏、桃果树来说常遭到花期霜冻,轻者加重落花、落果,重者导致绝收,直接影响了果农生产的积极性,为此我们应采取各种措施预防晚霜的危害,确保高产优质是春季管理的一个重要技术环节。 Spring fruit florescence or young fruit period, the temperature fluctuated, frequent night cream phenomenon, when the fruit trees have entered the growing period, the fruit tree organs will suffer varying degrees of frost damage, especially for early flowering apricot, peach tree It was frost in florescence. The light aggravate the falling and declining fruit. The serious result in yield loss, which directly affected the enthusiasm of fruit growers. Therefore, we should take various measures to prevent the damaging of late frost. Ensuring high yield and quality is an important technical link in spring management.