论文部分内容阅读
一、主要问题1、栽培技术相对落后,优质果率低我国梨树栽培历史悠久,多年来基本采用稀植大冠栽培,管理比较粗放。在日韩梨栽培上,绝大部分梨农仍沿用过去的整形修剪、花果管理、施肥灌水、病虫害防治等管理方法,缺乏相应的配套栽培技术,优质果率低,一般精品果不足5%,优质果率仅30%左右,不合格产品达到15%以上。
First, the main problem 1, relatively backward cultivation techniques, high-quality fruit low Pear cultivation history has long been the basic cultivation of large crowns over the years, the management is more extensive. Pear cultivation in Japan and South Korea, the vast majority of pear farmers still follow the past, plastic trim, flower management, fertigation and irrigation, pest control and other management methods, the lack of appropriate supporting cultivation techniques, high-quality fruit rate is low, the general fine fruit less than 5% , High-quality fruit rate is only about 30%, substandard products reached more than 15%.