“块大甜”为石家庄市农药厂新产品,是一种暂时性抑制剂。主要用于甜菜、红薯、马铃薯等作物,以控制叶蔓生长,增产、增糖。同时,该药剂又是选择性除草剂和水果保鲜剂。该药剂对人、畜无毒,使用方便、安全。为探讨块大甜调节剂对柑桔果实的保鲜效果,1984～1985年在本所柑桔园14～15年生温州宫川园地进行 “Block sweet” for the new pesticide plant in Shijiazhuang City, is a temporary inhibitor. Mainly used for sugar beet, sweet potato, potato and other crops, to control leaf vine growth, increase production, increase sugar. At the same time, the agent is a selective herbicide and fruit preservative. The medicament is non-toxic to human beings and livestock and is easy to use and safe. In order to explore the sweetness of block sweet agent on the preservation of citrus fruits, 1984 to 1985 in the Citrus Orchard 14 to 15 years in Wenzhou Gongchuanyuan