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阳高县王官屯农业中学1978年采用乔砧密植的方法,定植梨树1.004亩,三年见果,五年丰产,七年高产。1984年平均亩产梨7,488.6斤,创全省梨园早期丰产最高记录,比当地乔砧稀植七年生梨园增产16倍;5—7年累计亩产量达11,730斤,是普通梨园的19倍。其主要技术措施如下: 一、选择品种。根据多年梨树引种试验,选用了适应性强、结果早、丰产性能高、树体较小的朝鲜洋梨和身不知作为主栽品种。
In 1978, Yanggao County Wangguantun Agricultural Middle School adopted the method of planting anvil and rootstock and planting pear trees of 1.004 mu in three years, with five years of high yield and seven years of high yield. In 1984, an average yield of 7,488.6 kg of mu was per mu, a record high in early pear production in the whole province, 16 times more than that of a rare perennial rare plant grown in Qionghu of the province. The cumulative output per mu reached 11,730 pounds in 5-7 years, 19 times that of ordinary pear orchards. The main technical measures are as follows: First, choose varieties. According to many years of pear introduction test, the selection of strong adaptability, early results, high yield performance, smaller tree pear and pear do not know as the main varieties.