落叶果树座果率的高低,与花芽的质量,特别是枝条氮素营养的高低有密切的联系。大年的果树由于结果多、消耗的养分多,枝条内养分贫乏,往往影响花芽的正常发育而形成“小年”。克服“小年”的 Deciduous fruit rate of fruit, flower bud quality, especially the level of nitrogen nutrition is closely linked. New Year’s fruit trees due to the results, the consumption of nutrients and more nutrients poor branches, often affect the normal development of flower buds and the formation of “small”. Overcome “small”