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植物生长调节剂在苹果生产中的应用范围比较广泛,仅就效果比较明显的几种药剂分成以下几类,分别对其效果和使用方法加以论述。一、以省工为目的的药剂。 (一)、疏花、疏果。 1、疏花剂:DN醋酸盐剂、石硫合剂、硫化铁合剂有明显的疏除效果.这些药剂的疏除作用,是由于喷在花上,直接伤害柱头,阻止受精的缘故。因此,喷布在开花的当日和第二日的花上有疏除效果;对未开的花或已受精的花几乎没有效果。所以依靠喷布时期,可以有选择的保留果实。苹果的疏花是为了保证开花早的顶花芽中心花座果,所以应当在顶花芽中心花
Plant growth regulators in apple production in a wide range of applications, only the more obvious effects of several agents are divided into the following categories, respectively, its effectiveness and use of methods to be discussed. First, to save labor for the purpose of the agent. (A), thinning, thinning fruit. 1, thinning agent: DN acetate agent, lime sulfur mixture, iron sulfide mixture has obvious sparse effect of sparse effect of these agents is sprayed on the flowers, directly injuring the stigma, to prevent the sake of fertilization. Therefore, the sprinkle has the effect of thinning on the flowers on the day and the flower on the second day; there is almost no effect on unopened flowers or fertilized flowers. So rely on the spray period, you can choose to retain the fruit. The thinning of the apple is to ensure that the top of the top of the flowering flower is flower-bearing fruit, therefore,