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葡萄优果剂是由北京农业大学基础科技学院研制的植物生长调节剂，１９９８－１９９９年我们在４年生巨峰葡萄上进行了试验：（１）花期（开花前５－７ｄ）每６６６．７ｍ２将１５ｍｌ（或０．３ｇ）Ａ－５－２倒入１８ｋｇ清水中搅匀，再把１５mlＡ－５－ｌ倒入该溶液中搅匀，
Grape excellent fruit agent is a plant growth regulator developed by Beijing Agricultural University, Institute of Basic Science and Technology, 1998-1999 we test on 4-year-old Kyoho grape: (1) Flowering (5-7d before flowering) Each 666.7m2 15ml (or 0.3g) A-5-2 into 18kg of water and stir well, then pour 15mlA-5-l into the solution and mix well,