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海阳县农牧局果业站唐守三等5人,从1980年开始,对苹果树进行以花定果试验。即在苹果初花期,留一个花定一个果,其它不准备结果的花全部疏掉。此项技术开始人们认为“风险”大,不易推广。多年来经过反复试验,不断示范,1988年示范面积达4000亩,1989年推广4万亩左右。实践证
Haiyang County Bureau of Agriculture and Animal Husbandry Station Tang Shou three other five people, from 1980 onwards, the apple tree flowers to test. That is, in the first flowering of apple, leave a flower to set a fruit, and other flowers that are not ready to result are all sparse. This technology began to people think “risk” is large, not easy to promote. Over the years after repeated tests, continuous demonstration, demonstration area of 4,000 acres in 1988, about 40,000 acres in 1989 to promote. Practice certificate