葡萄更换品种时,如果将栽植多年的老树挖掉,实在可惜,影响收益。我们通过试验证明,快捷、有效的办法就是低接换种。1.品种选择年降雨量在700毫米以上地区,应嫁接一些抗病性强的早、中熟品种,如亚都密、户太8号、峰后、黑奥林等。年降雨量在700毫米以下地区,应选择大红球、美人 Grapes to change varieties, if the old trees planted for many years to dig, it is a pity that affect the proceeds. We have proved through experiments that a quick and effective way is to replace the species by substitution. 1. Variety selection Annual rainfall above 700 mm in the region, should be grafted some early resistance, medium maturing varieties, such as Asia are dense, household too on the 8th, after the peak, Black Olin and so on. Annual rainfall below 700 mm in the region, should choose red ball, beauty