在本地苹果花期常遇低温阴雨的情况下,我们曾对提高苹果座果率进行了许多试验,如人工授粉、环剥、果台付梢摘心、喷硼、喷尿素、喷增产灵等,都有一定的效果,其中以喷增产灵加硼砂再加尿素的效果最好。1979年通过试验得出结果以后,1980年全面推广到大田生产,收到显著效果,用它喷 In the local apple blossoms often encounter low temperature rainy conditions, we have to improve apple fruit rate carried out many tests, such as artificial pollination, girdling, fruiting peach topping, spraying boron, urea spray, spraying Zeng Ling, etc. There is a certain effect, of which spray to increase Ling Ling plus borax plus urea best. After passing the test results in 1979, it was fully promoted to field production in 1980 and received remarkable results. Using it for spraying