类别:水果
关键字:apple rootstocks tree spacing
上传时间:2021/12/21 01:19
免费预览:4页/4页
擅长领域:水果:苹果;水肥基础:测土施肥
所需农币:5
文件大小:106.25 KB
格式:pdf
简介:The commercial apple industry worldwide is in the midst of a major change in fruit production management systems. With size-controlling rootstocks tree size has been reduced and the number of trees per acre, referred to as tree density, has increased significantly. Some orchards in Europe have exceeded 5,000 trees per acre.