鸭梨、胎黄梨是鲁西北梨区的主要栽培品种。但长期以来,生产中存在着片面追求多结果、忽视质量的倾向,严重影响着果品质量的提高和栽培者的收益,也损害了消费者的利益。留果过多的主要原因,除了果农担心大量疏果会减少收益外,对适宜的留果量不明确以及留果标准较难掌握也是其主 Yali pear, fetal yellow pear is the main Northwest Lushan cultivars. However, for a long time, there is a tendency of one-sided pursuit of multiple outcomes and neglect of quality in production, which seriously affects the improvement of the quality of fruit products and the profit of growers, and also damages the interests of consumers. The main reason for excessive retention of fruits is that, apart from the concern that fruit growers will reduce their profits by a large amount of fruit thinning, it is also their main concern that the appropriate amount of fruit remaining is not clear and the standard of fruit retention is difficult to master