天气预报 > 自然 > 苹果树老树嫁接新方法
苹果树老树嫁接新方法
更新时间: 2021-03-11 17:54:55  

1、回缩更新:对主、侧枝回缩时选择角度较小,生长较旺的背后枝、直立枝代替原头。

2、枝组重回缩:对各类枝组要适当重截、多截、少疏、抬高角度。

3、更新复壮:对徒长枝、直立旺枝多截少放,以促发分枝,增强生长势。

4、减少层次:采用回缩落头的方法尽量减少层次,降低树高,增加内膛光照,使其获得更新后的各级健壮枝。

关键词: 苹果树 嫁接 方法

苹果树老树嫁接新方法相关经验

天气预报

最新推荐

页面:/news/view-828831/ | 耗时:0.7833 s | 内存:2.11 MB | 查询:5 | 缓存读取:3 写入:1 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=828831 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=828831 LIMIT 0,1
select * from tbl_Articles_sphinx where id=828831 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(668840,3227726,803569,536051,798742,935911,577319,829097,767673,661642,529197,525103,393173,575933,776904,815478,1438358,975786,385821,892741,82222,915988,654690,864286,779824,485525,624913,762205,670904,946138) ORDER BY field (ArticleID,668840,3227726,803569,536051,798742,935911,577319,829097,767673,661642,529197,525103,393173,575933,776904,815478,1438358,975786,385821,892741,82222,915988,654690,864286,779824,485525,624913,762205,670904,946138)
SELECT * FROM tbl_categories where CategoryID=90017 LIMIT 0,1