Cherry low yield problem solving measures and the reasons a lot of low-yielding cherry, behind the tree, pruning lag, unreliable rootstock, terrible frost and cracking, poor management practices and other problems restricting the yield and quality of a large cherry. Topping trim still used to promote flower, short retention chunks and other backward technology; rootstock instead of using Lookout, mountain cherry and other strong resistance, excellent strong growing rootstocks, but the big man touted leaf cherry rootstock Lift "table Bin" to just imported from abroad Lookout rootstock strangled in the cradle; frost cracking so many years and have not found an effective way to prevent Apple how to solve small size, and so on. Yantai Institute of Modern Fruit Industry Science After years of practice and exploration, the above problems have been solved. According to "Modern fruit industry," the technical guidance, cherry stable yield, quality and efficiency, I hope the majority of growers to carefully read the following technical articles, to produce higher efficiency through new technologies. Will appear deciduous leaf spot caused by the phenomenon. Leaves fall, and some farmers went to dealers, said that the pesticide is false, in fact, in recent years causing leaf spot defoliation, mostly farmers own causes. A leaf off the problems posed by a bad one flower bud formation. Blade manufacturing nutrition for flower bud formation and fruit enlargement apple orchard when fertilization is good, blade down, and less nutrient supply, flower buds are not full. Two bad apples table light, dark color, skin roughness. Second, leaf spot cause leaf shedding One reason for spraying is not timely; the second is not enough water spraying medicine; the third is problematic drug use; Fourth, the amount of excess nitrogen, flourishing trees, crown canopy; Fifth preparation Bordeaux mixture quality, but off. Third, the preventive measures brown spot two cases, one after bagging, no insects, mites orchards, Bordeaux mixture can be sprayed immediately; the second is after bagging, there are insects, mites in orchards, can be sprayed over organic kill insect fungicides, 6-7 days immediately spray Bordeaux mixture.