论文部分内容阅读
(续前)4整形修剪4.1树形树形选择主干疏层形,又称疏散分层形,是‘锦丰梨’产区应用的主要树形。该树形骨架牢固,中心干生
(Continued) 4 Trimming 4.1 tree tree trunk selection Sparse form, also known as evacuation layered, is ’Jinfeng pear’ production area of the main tree. The tree-shaped skeleton solid, dry center