一、绪言为了推动陕北地区大面积葡萄发展,加速葡萄新基地的建成,在现有葡萄产量水平上,创造高额的产量具有重大的意义,本试验就是在这个动机下进行的。试验地为米脂地葭芦人民公社神泉生产队的山旱县葡萄园,该园是目前陕北丘陵区结果园中面积最大的葡萄园。地处 I. INTRODUCTION In order to promote the development of a large area of ​​grapes in northern Shaanxi and speed up the construction of a new grape base, it is of great significance to create a large amount of output at the level of existing grapes. This experiment was conducted under this motivation. The experiment was conducted in Shanhan County vineyard of the Miquan Township People’s Commune Shinseon production team, which is currently the largest vineyard in the outcome garden in the hilly area of ​​northern Shaanxi Province. Located