第一作者简介　于锡宏 ,1 965年出生 ,东北农业大学园艺系副教授 ,博士 ,硕士研究生导师。1　前言在果菜类蔬菜生产中 ,由于植株营养失衡或外界条件不适 ,常常造成花、果的脱落 ,从而造成蔬菜生产的损失。在生产中对果菜类花、果脱落的问题 ,虽然可以利用一些栽培措施来加以防? The first author Yu Xihong, born in 1965, Department of Horticulture, Northeast Agricultural University Associate Professor, PhD, master tutor. 1 Introduction In the production of fruits and vegetables vegetables, due to imbalance in plant nutrition or external conditions, often lead to the loss of flowers and fruits, resulting in loss of vegetable production. In the production of fruit and vegetable flowers, fruit off the issue, although some cultivation measures can be used to prevent it?