我场位于银川市南郊,有果树400余亩,年产量20～40万斤。其中部分果树品种品质较差(如苹果中的尔其孜里蒙、酸黄魁;软儿梨等),且落果严重,商品价值很低。为了解决这一问题,我们于1976年～1978年,对部分品种进行高接换种。共高接414株,其中廿年生软儿梨46株,海棠237株,苹果131株。 My field is located in the southern suburbs of Yinchuan City, more than 400 acres of fruit trees, the annual output of 20 to 40 kg. Some of the fruit trees are of poor quality (such as Erzheimeng in apple, acid Huangkui, soft pear, etc.), and the fruit drop is serious, and the commodity value is very low. In order to solve this problem, we in 1976 ~ 1978, some of the varieties of high-substitution. A total of 414 high-access, of which 20 years-born soft pear 46, Begonia 237, 131 apples.