ＰＢＯ是由果树专用生长素、延缓剂及１０多种微量元素等成分组成的一种综合功能齐全的果树促控剂。使用ＰＢＯ可保证葡萄、脐橙、龙眼、荔枝、无籽西瓜、大棚桃、杏等果树满座果，使葡萄、桃、苹果、梨等果实增大，着色好，早熟，稳产、优质、高效。据辽宁瓦房店市用于红富士 PBO is a comprehensive and full-fledged fruit tree promoting agent composed of fruit-specific auxin, retarding agent and more than 10 kinds of trace elements. The use of PBO ensures that grape, navel orange, longan, lychee, seedless watermelon, peach, apricot and other fruit trees are full of fruit, so that grapes, peaches, apples, pears and other fruits increased color, precocious, stable yield, high quality and efficiency. According to Liaoning Wafangdian for Red Fuji