连续五年的田间试验证明,宣化牛奶葡萄长时期内表现产量低、大小年严重,是与传统的漏斗架式栽培技术落后有密切关系。通过改造架式、改革整形修剪方式及其它栽培技术,达到了大幅度增产和克服大小年的良好效果。本试验为牛奶葡萄的老园改造提供了有效的途径。本文并对进一步提高牛奶葡萄的品质进行了讨论。 For five consecutive years of field trials show that Xuanhua milk grapes performance in the long period of low output, the size of the year is serious, and the traditional funnel rack cultivation techniques are closely related. Through the transformation of frame, the reform of plastic trimming methods and other cultivation techniques, reached a substantial increase in output and overcome the size of the year the good results. This experiment provides an effective way for the transformation of the old vineyard of milk grapes. This article also discusses the further improvement of the quality of milk grapes.