果形剂我国某些地区生产不出高档苹果的主要原因有两个：一是气候条件不适，二是没有应用普洛马林（美国生产）。北京农业大学基础科技学院通过３年试验，研制出了类似于美国普洛马林作用的苹果果形剂。经在北京市的大型农场，郊区县及山东省果区试验，其对新红星苹果及元... There are two main reasons for the lack of high-grade apples in some areas of our country: first, the climatic conditions are not suitable; second, there is no application of Promarol (produced in the United States). Beijing Agricultural University Institute of Basic Science through 3 years of testing, developed a similar role of the United States apples apricot fruit extract. After large-scale farm in Beijing, suburban counties and Shandong Province fruit test, its new red star apple and yuan ...