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皮胎果为新疆梨的一个地方品系，海拔分布较高。其高接换种可以早酥梨为中间砧，嫁接第２年春适度修剪，施氮磷肥１１１ｇ／株，第３年为２４６ｇ／株（氮磷比２：１），树盘覆盖浅兰色薄膜。低产树改造每年春季施氮磷量（氮磷比２：１）５６５ｇ／株，平均增产达６６．１２％；每年盛花期叶面喷一次３００倍液田丰宝，能使单果重增加９．４３％，果实体积增大１７．５１％。通过叶片营养诊断，在该试验的土壤施肥情况下，叶片中还缺乏氮、磷、钾、铜、镁等元素；施氮量与叶片含氮量、叶片含氮净增量间均存在直线关系。
The skin and fetal fruit is a local line of pear in Xinjiang, with a higher altitude distribution. In the second year of grafting, moderate pruning was carried out in the second year of grafting, with 111 g / plant N and P applied and 246 g / plant (nitrogen and phosphorus ratio 2: 1) in the third year. The tree plate covered with light blue film . Low-yielding trees could transform 565 g / plant of N and P (N / P ratio 2: 1) in spring, with an average yield of 66.12%. Each year, , Fruit volume increased by 17.51%. Through the nutrition diagnosis of leaves, nitrogen, phosphorus, potassium, copper, magnesium and other elements were lacking in the soil fertilization in this experiment. There was a linear relationship between the amount of nitrogen application and the nitrogen content of leaves and the net increment of nitrogen in leaves .