有些苹果品种如国光等,随着果实的逐渐成熟,在采收前果实易出现裂果现象,直接影响果品的销售效益。 预防裂果,可采取以下三种方法: 1.用15％PP333(多效唑)可湿性粉剂,稀释成300倍液,于6月下旬和7月上旬喷2次,间隔15～20天,喷布时间最好在下午4时以后,要求均匀周到。据试验,喷后裂果率由100％转为好果率90％以上,还能 Some apple varieties such as Guoguang, with the fruit gradually maturing, the fruit is easy to appear before harvest cracking phenomenon, a direct impact on fruit sales effectiveness. To prevent cracking, can take the following three methods: 1. With 15% PP333 (paclobutrazol) WP, diluted to 300 times the liquid, in late June and early July spray 2 times, an interval of 15 to 20 days, spraying time The best in the afternoon after 4 pm, request uniform and thoughtful. According to the test, after the spray rate of split fruit from 100% to 90% of good fruit rate, but also